Manual Rinnai E75CN

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  • Rinnai E75CN - page 1

    8U.51.60.01/09.09 Changes reserved. Installation & Servicing Instructions Pictured: E75CN, E1 10CN E75CP , E1 10CP High efciency condensing gas boiler E75CN/E1 10CN E75CP/E1 10CP - Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other appliance. - WHA T TO DO IF YOU SMELL GAS - Do NOT try to ...

  • Rinnai E75CN - page 2

    Installation & Servicing Instructions Rinnai E-Series 2 Contents of instructions These installation instructions contain important information for the safe installation, start-up and maintanance of boilers with capacities 75,000 through 1 10,000 BTU/hr . These installation instructions are intended for professional installers, who have the nece ...

  • Rinnai E75CN - page 3

    Installation & Servicing Instructions Rinnai E-Series 3 Content 1 Safety and general instructions 4 1.1 Designated use 4 1.2 Hazard denitions 4 1.3 Symbol denitions 4 1.4 The following instructions must be followed 5 1.5 Follow these instructions for the space heating water 6 1.6 T ools, materials and additional equipment 6 1.7 Relevant I ...

  • Rinnai E75CN - page 4

    Installation & Servicing Instructions Rinnai E-Series 4 1 Safety and general instructions Please observe these instructions in the interest of your own safety . 1.1 Designated use The boiler is designed for heating water for a central heating system and generating domestic hot water . The boiler is delivered with a burner controller (MCBA) pre- ...

  • Rinnai E75CN - page 5

    Installation & Servicing Instructions Rinnai E-Series 5 1.4 The following instructions must be followed - The boiler must only be used for its designated purpose, as described in the Installation Instructions. - Each unit is tted with a data plate. Consult the details on this plate to verify whether the boiler is compliant with its intended ...

  • Rinnai E75CN - page 6

    Installation & Servicing Instructions Rinnai E-Series 6 1.5 Follow these instructions for the space heating water Unsuitable heating system water can cause the formation of scale or sludge, which affects system efciency . It can also cause corrosion and reduce life of the heat exchanger . – Y ou must follow Rinnai guidelines for boiler wat ...

  • Rinnai E75CN - page 7

    Installation & Servicing Instructions Rinnai E-Series 7 2 Regulations and guidelines The installation must comply to the requirements of the authority having jurisdiction or , in the absence of such requirements, to the latest edition of the National Fuel Gas Code, ANSI Z223.1/NFP A 54. In Canada, installation must be in accordance with the req ...

  • Rinnai E75CN - page 8

    Installation & Servicing Instructions Rinnai E-Series 8 For direct-vent boilers mechanical-vent heating boilers or domestic hot water equipment where the bottom of the vent terminal and the intake is installed higher than four feet above grade the following requirements must comply: 1) If not present on each oor level where there are bedroom ...

  • Rinnai E75CN - page 9

    Installation & Servicing Instructions Rinnai E-Series 9 4 Packaging and transportation 4.1 Scope of delivery The boiler is supplied ready for use. • Please check if the packaging is intact. • Check if all the items listed are included in the delivery . The supply kit is contents: • Boiler with casing; • T emplate; • Automatic air sepa ...

  • Rinnai E75CN - page 10

    Installation & Servicing Instructions Rinnai E-Series 10 5 Installation 5.1 Requirements for the installation room - The room where the boiler will be installed must always be frost free. - Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other appliance. - Never use or store any chlorinated det ...

  • Rinnai E75CN - page 11

    Installation & Servicing Instructions Rinnai E-Series 1 1 5.2 Fitting the boiler - Remove the packaging materials. - Lay the boiler on its back during unpacking. Remove the casing from the boiler . This part can be left apart during installation. It must be placed on the boiler and xed with the screw behind the door and in the 4 quick releas ...

  • Rinnai E75CN - page 12

    Installation & Servicing Instructions Rinnai E-Series 12 Boiler type E75CN E110CN E75CP E110CP inches / mm inches / mm A Height 25.6" / 650 25.6" / 650 B Height with expansion tank 34.3" / 870 C Width 19.7" / 500 19.7" / 500 D Depth 15.6" / 395 15.6" / 395 E Left side / vent 13.2" / 335 13.2" / 335 F ...

  • Rinnai E75CN - page 13

    Installation & Servicing Instructions Rinnai E-Series 13 connection diameters table 2 boiler connections / mounting points figure 2 f w g k r c Connection for combustion air supply and vent system f w g k r c Boiler type E75CN E110CN E75CP E110CP Vent system / Combustion air supply 80/125mm 80/125mm Gas pipe - g 3/4"M-NPT 3/4"M-NPT Su ...

  • Rinnai E75CN - page 14

    Installation & Servicing Instructions Rinnai E-Series 14 5.3.1 Plumbing Kits Rinnai supplies with each type of boiler a Plumbing kit. Find below the dimensions. See chapter 6.1 for additional information. 9.00 (REF . 16.07) (REF . 5.12) 200mm 7.87 (REF . 17.76) 1 1/4” 1 1/4” Plumbing Kit 1 Suitable for: E75CN / E75CP E1 10CN / E1 10CP plumb ...

  • Rinnai E75CN - page 15

    Installation & Servicing Instructions Rinnai E-Series 15 clearances to the boiler table 3 service clearances to the boiler figure 4 wall ceiling For closet installation: clearance is 1” / 25mm from the front. Low Loss Header Clearances to combustible and non-Combustible is 0 inch for sides, top, front and oor/ground 0.4" 10 2" 50 ...

  • Rinnai E75CN - page 16

    Installation & Servicing Instructions Rinnai E-Series 16 5.4 T echnical specications T echnical specifications T able 4 Boiler type E75CN E110CN E75CP E110CP Input Hs CH BTU/hr 75,000 110,000 75,000 110,000 kW 22 32 22 32 Propane orifice diameter inch / mm n.a. n.a. 0.16" / 4.15 0.20" / 5.2 Display indication at start-up 22.t 32.t ...

  • Rinnai E75CN - page 17

    Installation & Servicing Instructions Rinnai E-Series 17 6 Connecting the boiler The boiler has the following connection pipes; - The central heating circuit pipes. These must connected to the plumbing kit by means of adapter ttings. See further chapter 6.1; - The gas supply pipe. It is provided with a 3/4" male thread into which the ta ...

  • Rinnai E75CN - page 18

    Installation & Servicing Instructions Rinnai E-Series 18 6.1.1 Plumbing Kit installation Rinnai supplies specic Plumbing Kits with each boiler type, which must be tted directly underneath the boiler on the supply and return pipe. Use of the Rinnai boiler without the plumbing kit will result in the void of warranty . T o protect the entire ...

  • Rinnai E75CN - page 19

    Installation & Servicing Instructions Rinnai E-Series 19 Th e boi ler ha s a sel f-a dj ust ing a nd sel f-p rot ect ing co ntr ol sy ste m f or th e loa d a nd th e pu mp ca pa ci ty. By t hi s m ea ns the te mp era tur e d if fer enc e be tw een th e supply an d re tu rn wa ter is ch eck ed and controlled. If the installation resistance is ov ...

  • Rinnai E75CN - page 20

    Installation & Servicing Instructions Rinnai E-Series 20 6.1.2 Safety valve An ASME 30 psi pressure relief valve is installed on the plumbing kit included with the boiler . 6.1.3 Low water cut off The Rinnai E boiler has a factory installed pressure switch type Low Water Cut Off (L WCO). Check your local codes to see if a Low Water Cut Off is r ...

  • Rinnai E75CN - page 21

    Installation & Servicing Instructions Rinnai E-Series 21 6.3 Un der o or he ati ng sy stem (p la sti c pip es) When using oxygen-permeable pipes, e. g. for underoor heating systems, the system must be separated using plate heat exchangers. No recourse can be made to the terms of the warranty in the event of failure to regard the regulatio ...

  • Rinnai E75CN - page 22

    Installation & Servicing Instructions Rinnai E-Series 22 6.4.1. Gas connection with natural gas The gas supply connection must comply with local regulations or , if such regulations do not exist, with the National Fuel Gas Code, ANSI Z 223.1. For Canada, the gas connection must comply with local regulations or , if such regulations do not exist ...

  • Rinnai E75CN - page 23

    Installation & Servicing Instructions Rinnai E-Series 23 6.4.2 Gas connection with propane gas The gas supply connection must comply with local regulations or , if such regulations do not exist, with the National Fuel Gas Code, ANSI Z 223.1. For Canada, the gas connection must comply with local regulations or , if such regulations do not exist, ...

  • Rinnai E75CN - page 24

    Installation & Servicing Instructions Rinnai E-Series 24 6.5 Hot water supply Connection of the drinking water installation should be performed according to the national secondary drinking water regulations. Do NOT use toxic chemicals, such as are used for boiler treatment in potable water heating systems used for space heating. The sanitary wa ...

  • Rinnai E75CN - page 25

    Installation & Servicing Instructions Rinnai E-Series 25 6.7 V ent system and air supply system Provisions for combustion and ventilation air must be made in accordance with section, Air for Combustion and V entilation of the National Flue Gas Code, ANSI Z223.1, or Sections 7.2, 7.3 of 7.4 of CAN/CGA B149.1, Installation Codes, or applicable pr ...

  • Rinnai E75CN - page 26

    Installation & Servicing Instructions Rinnai E-Series 26 Short termination with roof terminal figure 10A T ermination with roof terminal and bends figure 10B Short termination with wall terminal figure 9A T ermination with wall terminal on higher level figure 9B Examples roof terminals Examples wall terminals 6.7.2a Examples vent and air supply ...

  • Rinnai E75CN - page 27

    Installation & Servicing Instructions Rinnai E-Series 27 6.7.2 b Examples vent and air supply systems (parallel) V ertical vent and horizontal air intake figure 1 1C V ertical with concentric termination figure 1 1D Horizontal with concentric termination figure 1 1A Horizontal with parallel termination figure 1 1B Examples sealed combustions V ...

  • Rinnai E75CN - page 28

    Installation & Servicing Instructions Rinnai E-Series 28 6.7.3 Installation of the vent system Consult local and state codes pertaining to special building code and re department requirements. Adhere to national code requirements. Follow the listed maximum length of vent systems, which are boiler output dependent. The maximum permissible len ...

  • Rinnai E75CN - page 29

    Installation & Servicing Instructions Rinnai E-Series 29 6.7.4 Recommended vent/air intake terminal position T erminals should be positioned as to avoid products of combustion entering openings into buildings or other vents. Maintain 12” of clearance above the highest anticipated snow level or grade or , whichever is greater . Please refer to ...

  • Rinnai E75CN - page 30

    Installation & Servicing Instructions Rinnai E-Series 30 6.7.4 Recommended vent/air intake terminal position T erminals should be positioned as to avoid products of combustion entering openings into buildings or other vents. Maintain 12” of clearance above the highest anticipated snow level or grade or , whichever is greater . Please refer to ...

  • Rinnai E75CN - page 31

    Installation & Servicing Instructions Rinnai E-Series 31 In certain weather conditions condensation may also accumulate on the outside of the air inlet pipe. Such conditions must be considered and where necessary insulation of the inlet pipe may be required. In cold and/or humid weather water vapor may condense on leaving the vent terminal. The ...

  • Rinnai E75CN - page 32

    Installation & Servicing Instructions Rinnai E-Series 32 6.7.6 Combustion air and vent piping lengths. In the table below you nd the maximum equivalent pipe length of the vent/air system based on 3" diameter . These lengths are for single pipe (room air), twin pipe, and concentric venting systems. Calculation of equivalent length vent s ...

  • Rinnai E75CN - page 33

    Installation & Servicing Instructions Rinnai E-Series 33 6.7.7 Calculation of compensation factor The compensation factor eliminates or reduces the natural effect of derate of maximum input caused by the resistance of the vent system and/or the impact of the altitude. 1. Determine the Compensation Factor V ent System CF(V) in the table below . ...

  • Rinnai E75CN - page 34

    Installation & Servicing Instructions Rinnai E-Series 34 6.7.8 Room Air System (indoor combustion air) When using indoor air , Rinnai strongly recommends the use of an indoor air lter , P/N 808000025. This boiler requires adequate combustion air for ventilation and dilution of ue gases. Failure to provide adequate combustion air can resul ...

  • Rinnai E75CN - page 35

    Installation & Servicing Instructions Rinnai E-Series 35 OUTLET AIR DUCT INLET AIR DUCT Gas V ent / Boiler Exhaust BOILER 12in. MAX 12in. MAX PERMANENT OPENINGS BOILER 10" (250mm) 12" (300mm) Louvers and grills figure 17 Conned Space: (Small Room, Closet, Alcove, Utility Room, Etc.) A conned space is dened in the NFP A #54 as ...

  • Rinnai E75CN - page 36

    Installation & Servicing Instructions Rinnai E-Series 36 Using Indoor Air For Combustion When using air from other room(s) in the building, the total volume of the room(s) must be of adequate volume (Greater than 50 cubic feet per 1000 Btu/hr). Each Combustion air opening must have at least one square inch of free area for each 1000 Btuh, but n ...

  • Rinnai E75CN - page 37

    Installation & Servicing Instructions Rinnai E-Series 37 7 Electrical connections The electrical connections to the boiler must be made in accordance with all applicable local codes and the latest revision of the National Electrical Code, ANSI/NFP A-70. Installations should also conform with CSA C22.1 Canadian Electrical Code Part 1 if installe ...

  • Rinnai E75CN - page 38

    Installation & Servicing Instructions Rinnai E-Series 38 electrical diagram figure 15 120V T 220°F 120V 5 2 Amp. max. X7 E-Prom Flowswitch 120V Label all wires prior to diconnection when servicing or replacing controls. Wiring errors can cause improper and dangerous operation ! CAUTION ...

  • Rinnai E75CN - page 39

    Installation & Servicing Instructions Rinnai E-Series 39 electrical ladder diagram figure 15a ...

  • Rinnai E75CN - page 40

    Installation & Servicing Instructions Rinnai E-Series 40 8 Boiler controls The boiler is provided with a fully automatic microprocessor control, called CMS Control Management System. This control simplies operation by undertaking all major control functions. Initially when power to the unit is switched on it will remain on standby . There is ...

  • Rinnai E75CN - page 41

    Installation & Servicing Instructions Rinnai E-Series 41 8.1 Explanation of the function buttons When the pump is switched on continuously it can lead to undesired heating up of the central heating system during the summer . NOTICE i NOTICE i Only qualied personel who are trained for servicing these boilers are permitted to make alterations ...

  • Rinnai E75CN - page 42

    Installation & Servicing Instructions Rinnai E-Series 42 9 Starting up: Filling and de-aerating the boiler and installation CAUTION Observe the following rules of safety: - All work on the unit must take place in a dry environment. - Rinnai units may never be in operation without their housing, except in connection with maintenance or adjustmen ...

  • Rinnai E75CN - page 43

    Installation & Servicing Instructions Rinnai E-Series 43 Freeze protection Freeze protection for new or existing systems must use glycol that is specially formulated for this purpose. This includes inhibitors, which prevent the glycol from attack the metallic components. This should be for multi-metallic components. Make certain to check that t ...

  • Rinnai E75CN - page 44

    Installation & Servicing Instructions Rinnai E-Series 44 It can take a while before all air has disappeared from a lled installation. Especially in the rst week noises may be heard which indicate the presence of air . The automatic air vent in the boiler will remove this air , which means the water pressure can reduce during this period a ...

  • Rinnai E75CN - page 45

    Installation & Servicing Instructions Rinnai E-Series 45 FOR YOUR SAFETY READ BEFORE OPERA TING W ARNING: If you do not follow these instructions exactly , a fire or explosion may result causing property damage, personal injury or loss of life. 8U.34.01.00 / 05.09 A. This appliance does not have a pilot. It is equipped with an ignition device ...

  • Rinnai E75CN - page 46

    Installation & Servicing Instructions Rinnai E-Series 46 10 Adjustments When the boiler is installed it is ready for use. All adjustments of the boiler control are already pre-programmed for a heating system with radiators/convectors with a supply temperature of 185°F . The adjustments are described in the Parameter chapter on page 44. In cert ...

  • Rinnai E75CN - page 47

    Installation & Servicing Instructions Rinnai E-Series 47 Parameter Mode PARA FACTORY DESCRIPTION RANGE . . . . 1 186°F maximum supply temperature CH 68 - 186°F 2* 00 type of CH installation: 01 DO NOT USE radiators with large surface areas or underfloor heating as additional heating: T max. supply 158°F K factor heating curve 1.8; gradient 1 ...

  • Rinnai E75CN - page 48

    Installation & Servicing Instructions Rinnai E-Series 48 Service Mode SERV VALUE DESCRIPTION RANGE 1 OFF boiler in operation with burner function o n OFF - max. 2 OFF fan adjustable and burner of f OFF - max. 3 OFF pump adjustable with burner o n OFF - max. 4 OFF showroom position ON = active and OFF = non active ON - OFF . . . . Error Mode ERR ...

  • Rinnai E75CN - page 49

    Installation & Servicing Instructions Rinnai E-Series 49 10.2 Activating factory settings (green button function) T o activate the factory settings again please follow the next procedure (Note: all altered adjustments will be set back to their orignial factory settings): - Select, when necessary , the technical read out; - Select with the MODE- ...

  • Rinnai E75CN - page 50

    Installation & Servicing Instructions Rinnai E-Series 50 12 Commissioning Work on the boiler must be carried out by a competent person, using correctly calibrated instruments with current test certication. These installation instructions are intended for professional installers, who have the necessary knowledge and are approved for working o ...

  • Rinnai E75CN - page 51

    Installation & Servicing Instructions Rinnai E-Series 51 12.1 T esting for gas leaks Prior to start-up of the boiler you must check the external tightness of the gas supply valve and conrm this in the start-up report. - Cover endangered positions before leak testing. - Do not spray the leak testing agent onto cables, plugs, electrical connec ...

  • Rinnai E75CN - page 52

    Installation & Servicing Instructions Rinnai E-Series 52 12.3 Checking for contamination In order to be able to check the boiler for contamination in the following running years it is advisable to measure the maximum air displacement in the boiler when putting the boiler into operation. This value can be different with each type of boiler . In ...

  • Rinnai E75CN - page 53

    Installation & Servicing Instructions Rinnai E-Series 53 12.4 Checking of the zero pressure control The zero pressure control is set at the factory . T o measure this value you need a difference pressure gauge with a range of +0,2 to -0,8 mbar (+0.08 to -0.001” W .C.). Follow the next procedure: - Press the MODE-button for 5 seconds. - The di ...

  • Rinnai E75CN - page 54

    Installation & Servicing Instructions Rinnai E-Series 54 12.5 Checking the O 2 The O 2 percentage is factory-set. This has to be checked at commissioning, maintance and faults. This can be checked by means of the following procedure: - Remove the black cover of the gas valve by unscrewing the sealed screw . - Put the boiler into operation and t ...

  • Rinnai E75CN - page 55

    Installation & Servicing Instructions Rinnai E-Series 55 Ionization test gure 23 Installing casing gure 24 12.6 Measuring the ionization current - Switch off the system using the Central Heating button and the DHW button - Disconnect the plug and the socket connection on the probe and connect the measuring device in series. See gure 23 ...

  • Rinnai E75CN - page 56

    Installation & Servicing Instructions Rinnai E-Series 56 13 Maintenance Maintenance or changes to the boiler may only be carried out by a qualied technician. 13.1 Periodic examination of venting systems and boiler The inspection of the boiler and venting system should be done every 2 years and full maintenance every 4 years or 4000 hours of ...

  • Rinnai E75CN - page 57

    Installation & Servicing Instructions Rinnai E-Series 57 14.2.1 Visual inspection for general signs of corrosion - Check all gas and water pipes for signs of corrosion. - Replace any pipes that are corroded. 14.2.2 Measuring the ionization current See subsection 12.6 “Measuring the ionization current". 14.2.3 Measuring the inlet gas pres ...

  • Rinnai E75CN - page 58

    Installation & Servicing Instructions Rinnai E-Series 58 13.2 Maintenance activities The fan unit and burner cassette (gure 27 to 29) (2 and 4 year maintenace) - remove the electrical connection plug from the gas valve (1) and fan motor (2); - loosen the nut (3) of the gas pipe under the gas valve; - replace the gasket with a new one ; - loo ...

  • Rinnai E75CN - page 59

    Installation & Servicing Instructions Rinnai E-Series 59 Condensate trap and condensate tray (gure 30-32) (2 and 4 year maintenance) Step 1: Condensate trap - rst remove the screw (7); - pull the condensation cup (8) downwards, out of the condensate tray (14) Check this for impurities. If there is not a lot of impurities it is not necessa ...

  • Rinnai E75CN - page 60

    Installation & Servicing Instructions Rinnai E-Series 60 Visual inspection of the ame The burner must ame evenly over the entire surface when operating correctly . The ame must burn with a clear , blue, stable ame. Check the ame through the inspection glass in the ignition probe (g. 33). The ame pattern should be as shown i ...

  • Rinnai E75CN - page 61

    Installation & Servicing Instructions Rinnai E-Series 61 1 heat exchanger 2 ignition unit 3 fan unit 4 air inlet damper 5 gas valve 6 automatic de-aerator 7 ceramic burner cassette 8 pla te hea t e xch ang er DH W 9 operating panel 10 Control T ower (CMS) 1 1 water lter return CH 12 three-way valve 13 circulation pump 14 exhaust 15 combustio ...

  • Rinnai E75CN - page 62

    Installation & Servicing Instructions Rinnai E-Series 62 15 Blocks and Errors Error indication (short reference) A detected error is indicated on the display by means of blocking or error messages. A distinction should be made between these two messages due to the fact that bloc- king can be of a temporary nature, however , error messages are ? ...

  • Rinnai E75CN - page 63

    Installation & Servicing Instructions Rinnai E-Series 63 external safety contact is active external safety contact broken rectify error as a result of which by determining contact is broken or make interconnection between 24/25 The following pages describes more detailed follow up instructions for sol - ving blockings, errors and practical circ ...

  • Rinnai E75CN - page 64

    Installation & Servicing Instructions Rinnai E-Series 64 check ow through the installation 15.1.2 Block 1 1 see the installation instructions for the hydraulic connections to the boiler (3-W ay-Thermostatic valve, Plumbing Kit installed?) maximum average  T of supply and return sensor for central heating is repeatedly exceeded. Operation ...

  • Rinnai E75CN - page 65

    Installation & Servicing Instructions Rinnai E-Series 65 check ow through the boiler and DHW fascility Execute Parameter-Reset. 15.1.3 Block 12 maximum average  T of supply and return sensor for hot water is repeatedly exceeded. Operation is normally possible for the central heating installation during the block. The pump continues to ope ...

  • Rinnai E75CN - page 66

    Installation & Servicing Instructions Rinnai E-Series 66 check the sensors NTC 1 and NTC 2 15.1.5 Block 67 a temperature difference has been detected between the supply and return sensor whilst the burner is not in operation. After the average  T has disappeared, the block will disappear . check the supply and return sensor for the resistanc ...

  • Rinnai E75CN - page 67

    Installation & Servicing Instructions Rinnai E-Series 67 check the boiler pump no water ow can be detected through the controller . De-aeration cycle is started. When water ow is detected during this cycle, the de-aeration cycle is terminated and the burner is released. check that the pump is functioning and/or that the water pressure sen ...

  • Rinnai E75CN - page 68

    Installation & Servicing Instructions Rinnai E-Series 68 boiler has not been burning but an ionisation ow (ame) has still been detected rectify the short-circuit and if necessary replace this part. incorrect ame formation. check whether the ionisation cable and/or the electrode are responsible for a possible short- circuit. Remove the ...

  • Rinnai E75CN - page 69

    Installation & Servicing Instructions Rinnai E-Series 69 disconnect voltage from the boiler and check the fuse F2 check the 24 V olt connection check the disconnected components for short-circuiting rectify the short- circuit or replace the short-circuited component 24 V olt short-circuit as a result of a 24 V olt short-circuit inside or outsid ...

  • Rinnai E75CN - page 70

    Installation & Servicing Instructions Rinnai E-Series 70 check the data in Error mode 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump there is a temperature difference between supply (3) and return (4) no temperature difference between supply (3) and return (4) boiler has gone out after ignition ionisation ow ...

  • Rinnai E75CN - page 71

    Installation & Servicing Instructions Rinnai E-Series 71 software error con- trol unit reset the boiler rectify the prece- ding error control unit error replace the control unit. The controller will automatically load the program into the new control unit. the controller has detected a pro- gram error the boiler automatically indicates this mes ...

  • Rinnai E75CN - page 72

    Installation & Servicing Instructions Rinnai E-Series 72 check the ribbon cable between the control unit and the display the error persists after reset software error control unit . incorrect data will be detected in case of a poor connection between the control unit and the display . If necessary , replace the ribbon cable between these two co ...

  • Rinnai E75CN - page 73

    Installation & Servicing Instructions Rinnai E-Series 73 software error control unit . control unit error check the gas valve replace the control unit. The controller will automatically load the program into the new control unit. 15.2.7 Error 07 ...

  • Rinnai E75CN - page 74

    Installation & Servicing Instructions Rinnai E-Series 74 check the interface and the ribbon cable between the control unit and the display the error persists after reset software error control unit control unit error incorrect data will be detected in case of a poor connection between the control unit and the display or if the interface is inco ...

  • Rinnai E75CN - page 75

    Installation & Servicing Instructions Rinnai E-Series 75 remove the voltage from the boiler and check fuse F2 check the 24 V olt connections check the disconnected parts for wear and tear rectify the short- circuit or replace the short-circuited component short-circuit 24 V olt due to the 24 volt short-circuit inside or outside the boiler , fus ...

  • Rinnai E75CN - page 76

    Installation & Servicing Instructions Rinnai E-Series 76 control unit error software error control unit replace the control unit. The controller will automatically load the program into the new control unit. 15.2.10 Error 13 ...

  • Rinnai E75CN - page 77

    Installation & Servicing Instructions Rinnai E-Series 77 ow sensor ground connection check the data in Error mode 1 error 2 operational status 3 ow temp. 4 return temp. 5 kW burner 6 % pump a temperature of - 36 is displayed at position 3 if necessary , replace the ow sensor *= variable values boiler data during error check the wiring ...

  • Rinnai E75CN - page 78

    Installation & Servicing Instructions Rinnai E-Series 78 Signal maximum ow water temperature exceeded (T 1 > 212°F). check actual ow temperature check ow sensor NTC1 exchange defective part if necessary . Change control unit when error persists suddenly increase caused by completely hydraulic shut off of the boiler (lter , pump, ...

  • Rinnai E75CN - page 79

    Installation & Servicing Instructions Rinnai E-Series 79 Signal maximum return water temperature exceeded (T 2 >212°F). check actual return temperature check return sensor NTC 2. exchange defective part if necessary . Change control unit when error persists Increase of temperature cause by external heating source? measure the resistance val ...

  • Rinnai E75CN - page 80

    Installation & Servicing Instructions Rinnai E-Series 80 no signal from the fan the fan is not spinning fuse is working and the error is repeated wiring and voltage are OK and error is repeated if necessary , replace the fan check fuse F3, this fuse is positioned in the control unit and can be seen once the black covering lid has been removed c ...

  • Rinnai E75CN - page 81

    Installation & Servicing Instructions Rinnai E-Series 81 internal shut down of supply sensor T1 check the data in Error mode 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump check the wiring the wiring is OK but the error is repeated replace the sensor *= variable value boiler data during error 1 = 31 2 = 00 3 = 2 ...

  • Rinnai E75CN - page 82

    Installation & Servicing Instructions Rinnai E-Series 82 shut down of return sensor T2 check the data in Error mode 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump check the wiring the wiring is OK but the error is repeated replace the sensor *= variable value boiler data during error 1 = 32 2 = 00 3 = xx* 4 = 23 ...

  • Rinnai E75CN - page 83

    Installation & Servicing Instructions Rinnai E-Series 83 contact for supply sensor T1 open check the data in Error mode 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump check the wiring the wiring is OK but the error is repeated replace the sensor *= variable value boiler data during error 1 = 36 2 = 00 3 = -22 4 ...

  • Rinnai E75CN - page 84

    Installation & Servicing Instructions Rinnai E-Series 84 contact for return sensor T2 open check the data in Error mode 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump check the wiring the wiring is OK but the error is repeated replace the sensor *= variable value boiler data during error 1 = 37 2 = 00 3 = xx* 4 ...

  • Rinnai E75CN - page 85

    Installation & Servicing Instructions Rinnai E-Series 85 control unit error software error control unit software error control unit replace the control unit. The controller will automatically load the program into the new control unit. control unit error replace the control unit. The controller will automatically load the program into the new c ...

  • Rinnai E75CN - page 86

    Installation & Servicing Instructions Rinnai E-Series 86 16 Other errors central heating but no domestic hot water -Key of the hot water program is not switched on DHW sensor of owswitch defective when using RS101 16.1 Central heating but no hot water three-port valve is not circulating to DHW - check timer times for DHW program, if necessar ...

  • Rinnai E75CN - page 87

    Installation & Servicing Instructions Rinnai E-Series 87 hot water but no central heating -Key of the central heating program is not switched on room thermostat (on/ off) is not giving any signal to the boiler RS100 with outdoor sensor (Room sensor-On) 16.2 Hot water but no central heating three-port valve is not circulating to central heating ...

  • Rinnai E75CN - page 88

    Installation & Servicing Instructions Rinnai E-Series 88 -Key pump program is on dirt in three-port valve or three-port valve cartridge is getting jammed 16.3 Central heating installation gets hot without being requested clean or replace switch off central heating installation gets hot without being requested ...

  • Rinnai E75CN - page 89

    Installation & Servicing Instructions Rinnai E-Series 89 insufcient quantity of hot water hot and cold water connection to the boiler mixed up lime scale in the plate heat exchanger incorrect ow reducing valve 16.4 Insufcient quantity of hot water in the absence of positive results if necessary descale or replace check for the type and ...

  • Rinnai E75CN - page 90

    Installation & Servicing Instructions Rinnai E-Series 90 T emperature drop of the DHW ow reducing valve DHW power for the boiler is set too low 16.5 T emperature drop of the DHW - check P ARA chapter Step No. 43 - check the functioning and wiring of the DHW sensor T3 check ow reducng valve for the correct type in accordance with the insta ...

  • Rinnai E75CN - page 91

    Installation & Servicing Instructions Rinnai E-Series 91 radiators do not get hot enough or warming them up takes too long supply water temperature too low incorrect choice of installation installation resistance too high (given an average T > 36°F the boiler decreases the load) 16.6 Radiators do not get hot enough or warming up takes too l ...

  • Rinnai E75CN - page 92

    Installation & Servicing Instructions Rinnai E-Series 92 Parts casing E-Series 9 0 . 2 0 / 0 0 . 0 6 . 1 5 . U 8 . d e v r e s e r s e g n a h C Installation & Servicing Instructions These instructions to be retained by user. CAUTION! Read this manual thoroughly before installing, servicing, putting into operation or using this boiler and v ...

  • Rinnai E75CN - page 93

    Installation & Servicing Instructions Rinnai E-Series 93 Item Description Part No. E75C E1 10C N P N P OSS1 OSS2 1 GASKET CASING E 809000073 X X X X 2 CASING SET 809000074 X X X X 4 SPRING DOOR CASING 809000075 X X X X 5 GASKET CONTROLS 809000076 X X X X 6 DOOR CASING E 809000077 X X X X 7 USER MANUAL E-SERIES 800000012 X X X X 8 INST ALLA TION ...

  • Rinnai E75CN - page 94

    Installation & Servicing Instructions Rinnai E-Series 94 Parts heat exchanger E-Series 30 31 64 32 33 34 35 36 40 41 52 54 56 83 60 61 62 53 37 46 51 43 44 39 45 47 59 63 49 ...

  • Rinnai E75CN - page 95

    Installation & Servicing Instructions Rinnai E-Series 95 Item Description Part No. E75C E1 10C N P N P OSS1 OSS2 30 CLAMP BAR TOP P ART H.EX. LONG 809000014 X X X X 31 TOP P ART HEA T EXCH. SET OSS1 807000010 X X 31 TOP P ART HEA T EXCH. SET OSS2 80700001 1 X X 32 BOL T M 5X16 5x 809000015 X X X X 33 GASKET F AN/TOP P ART H.EX. 809000016 X X X ...

  • Rinnai E75CN - page 96

    Installation & Servicing Instructions Rinnai E-Series 96 Parts rear wall E-Series 81 84 78 79 77 ...

  • Rinnai E75CN - page 97

    Installation & Servicing Instructions Rinnai E-Series 97 Item Description Part No. E75C E1 10C N P N P OSS1 OSS2 80 GASKET AIR INT AKE ø80 SHR 809000047 X X X X 81 FLUE ADAPTER 80mm x 3” 808000022 X X X X 82 FEED THROUGH + PLUG FLUE GAS XXXX 83 FLUE GAS SYSTEM PP SET OSS1 808000010 X X 83 FLUE GAS SYSTEM PP SET OSS2 80800001 1 X X 84 COVER A ...

  • Rinnai E75CN - page 98

    Installation & Servicing Instructions Rinnai E-Series 98 95 94 105 106 107 109 1 1 1 1 17 1 17a 1 18 1 19 120 121 123 124 125 126 127 128 93 92 129 130 122 103a 103 101 100 102 97 146 91 96 133 134 131 132 135 98 1 12 1 13 1 16 139 1 15 136a 136 138 138a 99 Parts pipes E-Series ...

  • Rinnai E75CN - page 99

    Installation & Servicing Instructions Rinnai E-Series 99 Item Description Part No. E75C E1 10C N P N P OSS1 OSS2 91 O-RING ø21.89X2.62 GASLINE 809000061 X X X X GAS PIPE E75C 806000020 X X 92 GASKET FITTING 3/4” GASV . 809000062 X X X X 93 FITTING GAS V AL VE 3/4” 806000016 X X X X 93 GAS PIPE E1 10C 806000021 X X 94 GAS FITTING OSS1/2 E 8 ...

  • Rinnai E75CN - page 100

    Installation & Servicing Instructions Rinnai E-Series 100 Parts electrical components E-Series 162 T1 supply sensor 160 T2 return sensor 167 T3 DHW sensor 166 T5 ue gas sensor 168 HLS high limit switch 161 P1 water pressure sensor 166 167 168 146 152 150 151 168 ...

  • Rinnai E75CN - page 101

    Installation & Servicing Instructions Rinnai E-Series 101 Item Description Part No. E75C E1 10C N P N P OSS1 OSS2 140 HARNESS E 805000041 X X X X STICKER CONNECTION TERMINAL 805000046 X X X X CONNECTOR 2-POLE PURPLE 805000015 X X X X CONNECTOR 2-POLE BLACK 805000016 CONNECTOR 3-POLE GRA Y 805000018 X X X X CONNECTOR 4-POLE BROWN 805000021 X X X ...

  • Rinnai E75CN - page 102

    Installation & Servicing Instructions Rinnai E-Series 102 18 Parts list vent system V ent Manufacturer Contact Information for Installation Instructions and Parts Lists: Rinnai/Ubbink Heat-Fab T elephone: 800-621-9419 T elephone: 800-772-0739 Fax: 678-829-1666 Fax: 413-863-4803 Web Site: www .rinnai.us Email: cystsvc@heat-fab.com Web Site: www ...

  • Rinnai E75CN - page 103

    Installation & Servicing Instructions Rinnai E-Series 103 19 Common venting guidelines Do not common vent with the vent pipe of any other boiler or appliance. However , when an existing boiler is removed from a common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to ...

  • Rinnai E75CN - page 104

    Installation & Servicing Instructions Rinnai E-Series 104 R 25 °C 12 k Ω R 100 ° C 950 Ω B 2 5/ 85 K 0 5 7 3 K / % 2 , 4 - t n e i c i f f e o c e r u t a r e p m e T Te mp [° C] NT C [kO hm] -3 0 171. 70 -2 0 98.8 2 -1 0 58.8 2 0 36.1 0 10 2 2.7 9 20 1 4.7 7 25 1 2.0 0 30 9 .81 40 6 .65 50 4 .61 60 3 .25 70 2 .34 80 1 .71 90 1 .27 10 0 ...

  • Rinnai E75CN - page 105

    Installation & Servicing Instructions Rinnai E-Series 105 ...

  • Rinnai E75CN - page 106

    Installation & Servicing Instructions Rinnai E-Series 106 ...

  • Rinnai E75CN - page 107

    Installation & Servicing Instructions Rinnai E-Series 107 ...

  • Rinnai E75CN - page 108

    This renewed publication cancels all previous installation instructions. The company reserves the right to change the specications and dimensions without prior notice. Distributor for the USA Rinnai America Corporate • 103 International Drive • Peachtree City , GA 30269 T oll Free: (800) 621-9419 • T el: (678) 829-1700 • Fax: (678) 829-1 ...

Manufacturer Rinnai Category Boiler

Documents that we receive from a manufacturer of a Rinnai E75CN can be divided into several groups. They are, among others:
- Rinnai technical drawings
- E75CN manuals
- Rinnai product data sheets
- information booklets
- or energy labels Rinnai E75CN
All of them are important, but the most important information from the point of view of use of the device are in the user manual Rinnai E75CN.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Rinnai E75CN, service manual, brief instructions and user manuals Rinnai E75CN. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Rinnai E75CN.

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A complete manual for the device Rinnai E75CN, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Rinnai E75CN by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Rinnai E75CN.

A complete Rinnai manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Rinnai E75CN - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Rinnai E75CN, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Rinnai E75CN, that we can find in the current document
3. Tips how to use the basic functions of the device Rinnai E75CN - which should help us in our first steps of using Rinnai E75CN
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Rinnai E75CN
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Rinnai E75CN in a specific country, if it was not possible to solve the problem on our own.

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