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Lochinvar ARMOR 151 - page 1
Installation & Operation Manual Models: 151 - 801 This manual must only be used by a qualified heating installer / service technician. Read all instructions, including this manual and the Armor Water Heater Service Manual, before installing. Perform steps in the order given. Failure to comply could result in severe personal injury, death, or su ...
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Lochinvar ARMOR 151 - page 2
2 Hazard definitions The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product. DANGER WARNING CAUTION CAUTION NOTICE DANGER indicates an imminently hazardous situation which, if not avoided, will result ...
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Lochinvar ARMOR 151 - page 3
Installation & Operation Manual Please read before proceeding Installer – Read all instructions, including this manual and the Armor Water Heater Service Manual, before installing. Perform steps in the order given. Have this water heater serviced/inspected by a qualified service technician, at least annually. Failure to comply with the above ...
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Lochinvar ARMOR 151 - page 4
Installation & Operation Manual 4 The Armor Water Heater - How it works... 1. Stainless steel heat exchanger Allows water to flow through specially designed coils for maximum heat transfer, while providing protection against flue gas corrosion. The coils are encased in a jacket that contains the combustion process. 2. Combustion chamber access ...
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Lochinvar ARMOR 151 - page 5
Installation & Operation Manual 5 33 9 13 14 23 15 31 22 6 11 32 18 29 Rear View - Models 151 - 200 Rear View - Model 286 10 2 1 25 17 30 23 34 29 8 7 28 19 37 36 20 Left Side (inside unit) - Model 286 The Armor Water Heater - How it works... (continued) Left Side (inside unit) - Models 151 - 200 Models 151 - 200 23 8 10 13 14 15 18 20 12 25 30 ...
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Lochinvar ARMOR 151 - page 6
Installation & Operation Manual 6 The Armor Water Heater - How it works... Rear View - Models 601 - 801 Left Side (inside unit) - Models 601 - 801 18 29 9 13 14 6 11 27 33 22 31 32 15 Models 400 - 501 17 30 2 35 3 21 19 4 8 7 28 36 20 34 23 38 Rear View - Models 400 - 501 Left Side (inside unit) - Models 400 - 501 18 29 9 13 14 6 11 27 22 15 33 ...
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Lochinvar ARMOR 151 - page 7
Installation & Operation Manual Ratings Notes: 1. Armor water heaters require special gas venting. Use only the vent materials and methods specified in the Armor Installation and Operation Manual. 2. Standard Armor water heaters are equipped to operate from sea level to 4,500 feet only with no adjustments. The water heater will de-rate by 4% fo ...
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Lochinvar ARMOR 151 - page 8
Installation & Operation Manual 1 Determine water heater location 8 The Armor water heater gas manifold and controls met safe lighting and other performance under tests specified in ANSI Z21.10.3 – latest edition. Failure to keep water heater area clear and free of combustible materials, gasoline, and other flammable liquids and vapors can re ...
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Lochinvar ARMOR 151 - page 9
Installation & Operation Manual 1 Determine water heater location (continued) 9 ALCOVE INST ALLA TION 0" RIGHT 12" TOP 18" FRONT OPEN FRONT 14” REAR 12” LEFT 1/4” MINIMUM CLEARANCE A ROUND HOT W A TER PIPES 1” MINIMUM CLEARANCE A ROUND VENT PIPES Figure 1-2 Alcove Installation - Minimum Required Clearances CLOSET INST ALL ...
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Lochinvar ARMOR 151 - page 10
Installation & Operation Manual 1 Determine water heater location 10 Provide air openings to room: Armor water heater alone in equipment room 1. No air ventilation openings into the equipment room are needed when clearances around the Armor water heater are at least equal to the SERVICE clearances shown in FIG.’s 1-1 and 1-2. For spaces that ...
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Lochinvar ARMOR 151 - page 11
Installation & Operation Manual 1 Determine water heater location (continued) 11 Products to avoid: Spray cans containing chloro/fluorocarbons Permanent wave solutions Chlorinated waxes/cleaners Chlorine-based swimming pool chemicals Calcium chloride used for thawing Sodium chloride used for water softening Refrigerant leaks Paint or varnish re ...
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Lochinvar ARMOR 151 - page 12
Installation & Operation Manual 12 1 Determine water heater location When removing a water heater from existing common vent system: Do not install the Armor water heater into a common vent with any other appliance. This will cause flue gas spillage or appliance malfunction, resulting in possible severe personal injury, death, or substantial pro ...
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Lochinvar ARMOR 151 - page 13
Installation & Operation Manual 13 2 Prepare water heater Figure 2-2 Installing Propane Orifice - Models 151 - 286 Remove water heater from wood pallet 1. After removing the outer shipping carton from the water heater, remove the parts box. 2. Remove the front door to access the lag bolts in front of the unit (FIG. 2-1). 3. To remove the water ...
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Lochinvar ARMOR 151 - page 14
Installation & Operation Manual 2 Prepare water heater Figure 2-3 Installing Propane Orifice - Model 400 Model 400 1. Remove the top and front access covers from the unit (no tools required for removal). 2. Remove the three screws securing the venturi to the blower. Note: When separating the venturi from the blower, take care not to damage the ...
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Lochinvar ARMOR 151 - page 15
Installation & Operation Manual 2 Prepare water heater (continued) 15 Figure 2-6 Leveling Legs on the Water Heater Leveling the water heater 1. Set the water heater in place and check level. a) Adjust legs if necessary to level the water heater, see FIG. 2-6 below. COVER ALLEN WRENCH ADJUSTMENT SCREW Figure 2-5 Gas Valve Adjustment - Models 601 ...
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Lochinvar ARMOR 151 - page 16
Installation & Operation Manual 3 General venting 16 Figure 3-1 PVC/CPVC Two-Pipe Sidewall Termination - See page 24 for more details Figure 3-2 Stainless Steel Two-Pipe Sidewall Termination - See page 25 for more details Direct venting options - Sidewall Vent Figure 3-3 PVC/CPVC Concentric Sidewall Termination (Models 151 - 601 Only) - See pag ...
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Lochinvar ARMOR 151 - page 17
Installation & Operation Manual 3 General venting (continued) 17 Figure 3-4 PVC/CPVC Two-Pipe Vertical Termination - See page 31 for more details Figure 3-5 Stainless Steel Two- Pipe Vertical Termination - See page 31 for more details Direct venting options - Vertical Vent Figure 3-6 PVC/CPVC Concentric Vertical Termination (Models 151 - 601 On ...
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Lochinvar ARMOR 151 - page 18
Installation & Operation Manual 18 3 General venting PVC/CPVC Vent piping materials Use only the materials listed in Table 3A (page 19) for vent pipe, and fittings. Failure to comply could result in severe personal injury, death, or substantial property damage. Installation must comply with local requirements and with the National Fuel Gas Code ...
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Lochinvar ARMOR 151 - page 19
Installation & Operation Manual 3 General venting (continued) 6. Priming and Cementing: a. Handle fittings and pipes carefully to prevent contamination of surfaces. b. Apply a liberal even coat of primer to the fitting socket. c. Apply a liberal even coat of primer to the pipe end to approximately 1/2" beyond the socket depth. d. Apply a s ...
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Lochinvar ARMOR 151 - page 20
Installation & Operation Manual 3 General venting 20 Figure 3-11 Near Water Heater PVC/CPVC Venting Models 701 - 801 Air inlet pipe materials: The air inlet pipe(s) must be sealed. Choose acceptable combustion air inlet pipe materials from the following list: PVC, CPVC or ABS Dryer Vent or Sealed Flexible Duct (not recommended for rooftop air i ...
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Lochinvar ARMOR 151 - page 21
Installation & Operation Manual 21 3 General venting (continued) Table 3B Approved Stainless Steel Terminations and Adapters Model ProTech Heat Fab Z Flex FasNSeal Saf-T Vent Z-Vent **Adapter Flue Termination Intake Air Termination **Adapter Intermediate Adapter Flue Termination Intake Air Termination **Adapter Flue Termination Intake Air Termi ...
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Lochinvar ARMOR 151 - page 22
Installation & Operation Manual 22 Removing from existing vent Follow the instructions in Section 1, page 12 of this manual when removing a water heater from an existing vent system. Vent and air piping Vent and air system: Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. installations o ...
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Lochinvar ARMOR 151 - page 23
Installation & Operation Manual 3 General venting (continued) 23 Vent, air piping and termination: The Armor water heater vent and air piping can be installed through the roof or through a sidewall. Follow the procedures in this manual for the method chosen. Refer to the information in this manual to determine acceptable vent and air piping len ...
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Lochinvar ARMOR 151 - page 24
Installation & Operation Manual 24 4 Sidewall direct venting Vent/air termination – sidewall Follow instructions below when determining vent location to avoid possibility of severe personal injury, death, or substantial property damage. A gas vent extending through an exterior wall shall not terminate adjacent to a wall or below building exte ...
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Lochinvar ARMOR 151 - page 25
Installation & Operation Manual 25 Vent/air termination – sidewall 4 Sidewall direct venting (continued) 5. Maintain clearances as shown in FIG.’s 4-1A thru 4-3B, pages 24 thru 26. Also maintain the following: a. Vent must terminate: • At least 6 feet from adjacent walls. • No closer than 12 inches below roof overhang. • At least 7 fe ...
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Lochinvar ARMOR 151 - page 26
Installation & Operation Manual 4 Sidewall direct venting BIRD SCREEN (TYPICAL) 12” MIN. 12” MIN. 12” MIN. Figure 4-3B Alternate Clearance to Gravity Air Inlets w/ Field Supplied Fittings FORCED AIR INLET VENT / AIR TERMINA TION 7' MIN. ABOVE ANY PUBLIC WALKW A Y IF LESS THAN 10’ 36" MIN. Figure 4-4A Clearance to Forced Air In ...
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Lochinvar ARMOR 151 - page 27
Installation & Operation Manual 4 Sidewall direct venting (continued) Prepare wall penetrations (Alternate - Field Supplied Option) 1. Air pipe penetration: a. Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter. 2. Vent pipe penetration: a. Cut a hole for the vent pipe. For either combustibl ...
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Lochinvar ARMOR 151 - page 28
Installation & Operation Manual 28 4 Sidewall direct venting 4. Cut one (1) hole (5 inch diameter for #CVK3003 installations or 7 inch diameter for #CVK3007 installations) into the structure to install the termination kit. 5. Partially assemble the concentric vent termination kit. Clean and cement using the procedures found in these instruction ...
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Lochinvar ARMOR 151 - page 29
Installation & Operation Manual 29 4 Sidewall direct venting (continued) Sidewall termination – optional concentric vent: Models 151 - 601 Figure 4-10 Concentric Vent Dimensional Drawing - Models 151 - 200 Instead of cementing the smaller pipe to the rain cap, a field-supplied stainless steel screw may be used to secure the two (2) components ...
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Lochinvar ARMOR 151 - page 30
Installation & Operation Manual 30 4 Sidewall direct venting Sidewall termination – optional concentric vent: Models 151 - 601 Multiventing sidewall terminations When two (2) or more direct vent appliances are vented near each other, each appliance must be individually vented (see FIG. 4-14). NEVER common vent or breach vent this appliance. W ...
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Lochinvar ARMOR 151 - page 31
Installation & Operation Manual 31 5 Vertical direct venting Vent/air termination – vertical Follow instructions below when determining vent location to avoid possibility of severe personal injury, death or substantial property damage. Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. i ...
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Lochinvar ARMOR 151 - page 32
Installation & Operation Manual 32 5 Vertical direct venting Vent/air termination – vertical Prepare roof penetrations 1. Air pipe penetration: a. Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter. 2. Vent pipe penetration: a. Cut a hole for the vent pipe. For either combustible or noncom ...
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Lochinvar ARMOR 151 - page 33
Installation & Operation Manual 33 5 Vertical direct venting (continued) Vertical termination – optional concentric vent: Models 151 - 601 Description and usage Lochinvar offers an optional concentric combustion air and vent pipe termination kit. Both combustion air and vent pipes must attach to the termination kit. The termination kit must t ...
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Lochinvar ARMOR 151 - page 34
Installation & Operation Manual 34 5 Vertical direct venting Vertical termination – optional concentric vent: Models 151 - 601 Figure 5-6 Concentric Vent Roof Installation Ensure termination height is above the roof surface or anticipated snow level (12 inches in U.S.A. or 18 inches in Canada) as shown in FIG. 5-4, page 33. If assembly is too ...
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Lochinvar ARMOR 151 - page 35
Installation & Operation Manual 35 5 Vertical direct venting (continued) Alternate vertical concentric venting This appliance may be installed with a concentric vent arrangement where the vent pipe is routed through an existing unused venting system; or by using the existing unused venting system as a chase for vent and combustion air routing. ...
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Lochinvar ARMOR 151 - page 36
Installation & Operation Manual 36 Existing vent as a chase Follow all existing termination and clearance requirements and allowable pipe lengths. Use only approved venting materials listed in the General Venting Section of this manual. Figure 5-10 Existing Vent as a Chase FLUE EXHAUST FLUE OUTLET EX ISTING CAP SEAL SEAL AIR INLET 5 Vertical di ...
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Lochinvar ARMOR 151 - page 37
Installation & Operation Manual 6 System piping System water piping methods Observe a minimum of 1 inch clearance around all un-insulated hot water pipes when openings around the pipes are not protected by non-combustible materials. General piping information Basic steps are listed below along with illustrations on the following pages (FIG.’s ...
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Lochinvar ARMOR 151 - page 38
Installation & Operation Manual 38 6 System piping Water Heater Pump Applications Model *Pipe Size Armstrong Grundfos Flow Rate (GPM) Loss (FT/HD) Temp. Rise 151 1-1/4" E8 -- 16 16.6 18°F 200 1-1/4" E8 -- 21 11.8 18°F 286 2" E17 -- 30 17.1 18°F 400 2" E24 -- 39 21 18°F 501 2" E22 -- 53 26 18°F 601 2" E22 -- 53 ...
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Lochinvar ARMOR 151 - page 39
Installation & Operation Manual 39 6 System piping (continued) Figure 6-4 Single Heater - Single Tank (2 Temperature) FLOW CHECK VALVE (TYPICAL) BALL VALVE (TYPICAL) EXPANSION TANK THER MOMETE R (TYPICAL) COLD WA TER SUPPLY 140° HOT WA TER SUPPLY HIGH TEMPERA TURE BUILDI NG RETURN DRAIN TEMPERATURE & PRESSURE RELIEF VALVE (TYPICAL) FLOW SW ...
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Lochinvar ARMOR 151 - page 40
Installation & Operation Manual 40 6 System piping FLOW CH ECK VALVE (TYPICAL) EX PANSION TANK TH ERMO METER CO LD W ATER SU PP LY HOT W ATER SUPPL Y BUILDI NG RETURN DRAIN TEMPERATURE & PRESSURE RELIEF VALVE (TYPICAL) FLOW SW ITCH WA T E R HEATER CIRCULA TOR ST ORA GE TANK WA T E R HEATE R UNION (TYPICAL) BALL VALVE (TYPICAL) MIX ING VALVE ...
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Lochinvar ARMOR 151 - page 41
Installation & Operation Manual 41 6 System piping (continued) FLOW CHECK VALVE (TYPICAL) BALL VALVE (TYPICAL) EX PANSION TANK TH ERMOME TER COLD W ATER SUPPL Y HOT W ATER SU PPL Y BUILDI NG RETURN DRAIN (TYPICAL) TEMPERATURE & PRESSURE RELIEF VALVE (TYPICAL) FLOW SW ITCH W ATER HEATER CIRCULAT OR STORA GE TANK (T YP ICAL ) WA T E R HEATE R ...
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Lochinvar ARMOR 151 - page 42
Installation & Operation Manual 42 6 System piping FLOW CHECK VALVE (TYPICAL) BALL VALVE (TYPICAL) EXPAN SION TANK THE RMOMET ER CO LD W ATER SU PPL Y HOT W ATER SU PPL Y BUILDI NG RETURN DRAIN TEMPERATURE & PRESSURE RELIEF VALVE W ATER HEATER CIRCULAT OR (TYPICAL) STO RA G E TANK WA T E R HEATE R (T YP ICAL ) UNION (TYPICAL) MIXING VALVE Y ...
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Lochinvar ARMOR 151 - page 43
Installation & Operation Manual 43 6 System piping (continued) FLOW CHECK VALVE (TYPICAL) BALL VALVE (TYPICAL) EXPANSION TANK THERMOMETER COLD W ATER SUP PLY HOT W ATER SUP PLY BUILDI NG RETURN DRAIN (TYPICAL) TEMPERATURE & PRESSURE RELIEF VALVE (TYPICAL) FLOW SW ITCH (TYPICAL) WA T E R H E A TE R CIRCULAT OR (TYPICAL) STORA GE TANK (TYP IC ...
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Lochinvar ARMOR 151 - page 44
Installation & Operation Manual 7 Gas connections Connecting gas supply piping 1. Remove the top access panel and refer to FIG.’s 7-1 thru 7-4 to pipe gas to the water heater. a. Install ground joint union for servicing, when required. b. On Models 151 - 400 install a manual shutoff valve in the gas supply piping outside water heater jacket w ...
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Lochinvar ARMOR 151 - page 45
Installation & Operation Manual 45 7 Gas connections (continued) Failure to apply pipe sealing compound as detailed in this manual can result in severe personal injury, death, or substantial property damage. Armor water heaters are typically shipped ready to fire on natural gas. Check the water heater rating plate to determine which fuel the wa ...
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Lochinvar ARMOR 151 - page 46
Installation & Operation Manual 46 Nominal Iron Pipe Size (Inches) Single Unit Natural Gas Pipe Capacity Chart Length of Pipe in Straight Feet for 1/2 PSI 10 20 30 40 50 60 70 80 90 100 125 150 175 200 1/2 175 120 97 82 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 3/4 369 256 205 174 155 141 128 121 113 106 95 86 79 74 1 697 477 384 328 292 267 246 ...
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Lochinvar ARMOR 151 - page 47
Installation & Operation Manual 47 7 Gas connections (continued) Gas pressure The gas pressure must remain between 4 inches w.c. (natural), 8 inches w.c. (LP) minimum and 14 inches w.c. (natural and LP) maximum during stand-by (static) mode and while in operating (dynamic) mode. If an in-line regulator is used, it must be a minimum of 10 feet f ...
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Lochinvar ARMOR 151 - page 48
Installation & Operation Manual 48 8 Field wiring ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death. Wiring must be N.E.C. Class 1. If original wiring as supplied with the water ...
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Lochinvar ARMOR 151 - page 49
Installation & Operation Manual 49 8 Field wiring (continued) Tank thermostat 1. Connect the tank thermostats (isolated contact only) to the tank thermostat contacts as shown in FIG. 8-3. Tank sensor 1. By installing a tank sensor, the SMART SYSTEM control can perform the tank thermostat function. The SMART SYSTEM control automatically detects ...
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Lochinvar ARMOR 151 - page 50
Installation & Operation Manual 50 8 Field wiring Runtime contacts The SMART SYSTEM control closes a set of dry contacts whenever the burner is running. This is typically used by Building Management Systems to verify that the water heater is responding to a call for heat. Alarm contacts The SMART SYSTEM control closes another set of contacts wh ...
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Lochinvar ARMOR 151 - page 51
Installation & Operation Manual 51 8 Field wiring (continued) 24V AC LOUVE R RELA Y COIL FLOW SW IT CH TA N K S E N S O R BUILDING MANAGE MENT SYSTEM LOUVER PROVING SW IT CH COM NO LOW WA TER CUTOF F TA N K T H E R M O S TAT SHIELD SHIELD TO NEX T HEA TER A B A B FROM PREVIOUS HEA TER A B Figure 8-3 Low Voltage Field Wiring Connections ...
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Lochinvar ARMOR 151 - page 52
Installation & Operation Manual 52 9 Condensate disposal Condensate drain 1. This water heater is a high efficiency appliance that produces condensate. 2. The side of the water heater has a 1/2 inch PVC union for connection of a 1/2 inch PVC pipe (FIG. 9-1). 3. Slope condensate tubing down and away from the water heater into a drain or condensa ...
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Lochinvar ARMOR 151 - page 53
Installation & Operation Manual 53 10 Start-up Chlorine concentration less than 200 ppm 1. Do not fill the water heater or operate with water containing chlorine in excess of 200 ppm. 2. Filling with chlorinated fresh water should be acceptable since drinking water chlorine levels are much lower. 3. Do not use the water heater to directly heat ...
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Lochinvar ARMOR 151 - page 54
Installation & Operation Manual 54 10 Start-up Final checks before starting the water heater Read the Armor Water Heater Service Manual to familiarize yourself with SMART SYSTEM control module operation. Read this manual, pages 55 and 56 for proper steps to start the water heater. Verify the water heater and system are full of water and ...
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Lochinvar ARMOR 151 - page 55
Installation & Operation Manual 55 FO R Y OU R S AFE T Y RE A D BE F OR E OP E R A T ING WA RN I N G : If y ou do n ot f ol l ow t hes e i nst ruc t io ns e xact l y , a f ir e o r e x pl osio n ma y re sul t ca u sin g p r o p e rt y da mag e , p e rso n a l i n j u ry, o r l o ss o f l i f e . A. T hi s a p p l i a nce do e s n ot h av e a pi ...
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Lochinvar ARMOR 151 - page 56
Installation & Operation Manual 56 10 Start-up Figure 10-3 Operating Instructions - Models 400 - 801 ...
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Lochinvar ARMOR 151 - page 57
Installation & Operation Manual 57 Check flame and combustion (continued) 4. Place the water heater into the active position by pressing the RIGHT SELECT [ON] key (FIG. 11-1, page 63). 5. Locate the pinhole button below the RESET button on the display board (FIG. 11-1). Insert a thin wire (such as a paper clip) into the hole and press the butto ...
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Lochinvar ARMOR 151 - page 58
Installation & Operation Manual 58 10 Start-up Configuration of the cascade Set clock NOTICE The internal clock does not adjust for Daylight Savings Time and therefore, will require a manual adjustment. The SMART SYSTEM control has a built-in clock that it uses for its night setback feature and for logging events. This clock must be set when th ...
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Lochinvar ARMOR 151 - page 59
Installation & Operation Manual 59 11 Operating information General How the water heater operates The Armor water heater uses an advanced stainless steel heat exchanger and electronic control module that allows fully condensing operation. The blower pulls in air and pushes flue products out of the water heater through the heat exchanger and flu ...
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Lochinvar ARMOR 151 - page 60
Installation & Operation Manual 60 When the outlet temperature exceeds 200°F, the automatic high limit action occurs. The water heater shuts down until the outlet water temperature cools below 190°F, and a 60 second timer has expired. If the outlet temperature continues to increase, the manual reset high limit action will occur at 210°F. Hig ...
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Lochinvar ARMOR 151 - page 61
Installation & Operation Manual 61 11 Operating information (continued) Night Setback operation with cascade Night Setback operation of the water heaters within the Cascade is available. Programming of the Night Setback will be done through the Leader water heater. Refer to the Armor Water Heater Service manual for information regarding Night S ...
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Lochinvar ARMOR 151 - page 62
Installation & Operation Manual 62 11 Operating information Sequence of operation OPERATION DISPLAY 1. The control will turn on the water heater pump (always ON except in Night Setback). The flow switch and/or LWCO must close. 2. The control turns on power to the louver relay. The louver proving switch, air pressure switch, and blocked drain sw ...
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Lochinvar ARMOR 151 - page 63
Installation & Operation Manual 63 Armor water heater control module NA VIGA TION DIAL (PRESS OR TURN) RESET KEY RIGHT SELECT KEY (SOFT KEY) LEFT SELECT KEY (SOFT KEY) Figure 11-1 Control Panel Use the control panel (FIG. 11-1) to set temperatures, operating conditions, and monitor water heater operation. 11 Operating information (continued) Th ...
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Lochinvar ARMOR 151 - page 64
Installation & Operation Manual 64 11 Operating information Status Display Screens Section Display Description A (Water heater Status Bar) STANDBY The unit has not received a call for heat from a remote thermostat nor has it received a call for heat from a DHW thermostat. START The unit has begun a burn cycle and is checking all safety circuits ...
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Lochinvar ARMOR 151 - page 65
Installation & Operation Manual 65 11 Operating information (continued) Status Display Screens (cont’d) Section Display Description C (Operational Information) TANK: The temperature read by the tank sensor (if connected). INLET TEMP: The temperature read at the inlet to the heat exchanger. OUTLET TEMP: The temperature read at the outlet of th ...
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Lochinvar ARMOR 151 - page 66
Installation & Operation Manual 66 11 Operating information Status Display Screens (cont’d) Section Display Description E (NAVIGATION Dial Function) Turning the NAVIGATION dial will select the next or previous Status Screen. Pressing the NAVIGATION dial will show the next fault, NSB (Night Setback) trigger, or ramp delay setting. Pressing the ...
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Lochinvar ARMOR 151 - page 67
Installation & Operation Manual 67 12 Maintenance Maintenance and annual startup Table 12A Service and Maintenance Schedules Service technician (see the following pages for instructions) General: • Address reported problems • Inspect interior; clean and vacuum if necessary; • Clean condensate trap and fill with fresh water • Check for l ...
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Lochinvar ARMOR 151 - page 68
Installation & Operation Manual 68 12 Maintenance Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the water heater. Failure to perform the service and maintenance could result in damage to the water heater or system. Failure to follow the directions in this manual and component ...
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Lochinvar ARMOR 151 - page 69
Installation & Operation Manual 69 12 Maintenance (continued) Failure to inspect for the above conditions and have them repaired can result in severe personal injury or death. Check water system 1. Verify all system components are correctly installed and operational. 2. Check the cold fill pressure for the system. Verify it is correct (must be ...
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Lochinvar ARMOR 151 - page 70
Installation & Operation Manual 70 12 Maintenance Check burner flame 1. Inspect flame through observation window. 2. If the flame is unsatisfactory at either high fire or low fire, turn off water heater and allow water heater to cool down. Remove the burner and clean it thoroughly using a vacuum cleaner or compressed air. Do not use compressed ...
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Lochinvar ARMOR 151 - page 71
Installation & Operation Manual 71 Oiled bearing circulators 1. The circulator shipped with the Armor water heater is water-lubricated. No oiling is required. 2. Check other circulators in the system. Oil any circulators requiring oil, following circulator manufacturer’s instructions. Over-oiling will damage the circulator. Check Delta T 1. C ...
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Lochinvar ARMOR 151 - page 72
Installation & Operation Manual 13 Diagrams Figure 13-1 Ladder Diagram BOX DEPICTS OPTIONAL ITEMS LADDER DIAGRAM LBL20149 REV B 120 VAC 24 VAC 120VAC TERMINAL STRIP 120V SUPPLY "L" ON / OFF SWITCH X1-6 F2 NEUTRAL FLOW CN5-12 CN5-11 X4-10 X4-11 INTEGRA TED CONTROL LOW GAS PRESSURE SWITCH HIGH GAS PRESSURE SWITCH LOUVER RELAY COIL 24VAC ...
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Lochinvar ARMOR 151 - page 73
73 Figure 13-2 Wiring Diagram 13 Diagrams (continued) X1-7 ON/ OFF SW ITC H 1 2 3 4 5 G R R W R T W BK Y BL BLOWER -T HIGH LIMIT SENSOR S1b OPERATI NG SENS OR S1a INLET S ENSOR S2 FLUE SEN SOR S3a FLUE SEN SOR S3b INT EGR ATED CONTRO L BK Y GAS VALVE @24 VAC SPAR K ROD TRANSF ORME R TR2 G HIGH VOLTAGE SPA RK LEAD CAUTION FLAME SEN SOR ALARM CONT AC ...
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Lochinvar ARMOR 151 - page 74
Notes Installation & Operation Manual 74 ...
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Lochinvar ARMOR 151 - page 75
75 Notes Installation & Operation Manual ...
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Lochinvar ARMOR 151 - page 76
Revision Notes: Revision A (ECO #C06238) initial release. Revision B (ECO #C07442) new layout in InDesign, piping diagram on page 43 (ECR #R03671), and edits made to the Ratings Page (page 7). Revision C (ECO #C07575) changes made (mixing valves) to the piping diagrams on pages 39 - 43, changes made to the gas supply piping images on page 44 (ECR R ...
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