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Raypak 992A-2342A - page 1
INST ALLA TION AND OPERA TING INSTR UCTIONS CA T ALOG NO. 1000.51 1A Effective: 09-08-06 Replaces: 03-15-05 P/N 241259 Rev . 1 WARNING: If these instructions are not followed exactly , a fire or explosion may result causing property dam- age, personal injury or death. FOR Y OUR SAFETY : Do not store or use gasoline or other flammable vapors and liq ...
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Raypak 992A-2342A - page 2
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Raypak 992A-2342A - page 3
WARNINGS 4 BEFORE INST ALLA TION 5 Product Receipt 5 Model Identification 5 Ratings and Certifications 5 Component Locations 6 General Information 7 GENERAL SAFETY 8 T ime/T emperature Relationships in Scalds 8 INST ALLA TION 9 Installation Codes 9 Equipment Base 9 Stacking 9 Clearances 1 1 Combustion and V entilation Air 12 Conventional Combustion ...
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Raypak 992A-2342A - page 4
4 D ANGER: Indicates the presence of immediate hazards which will cause severe person- al injury , death or substantial property damage if ignored. WARNING: Indicates the presence of hazards or unsafe practices which could cause severe personal injury , death or substantial property damage if ignored. CA UTION: Indicates the presence of hazards or ...
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Raypak 992A-2342A - page 5
5 BEFORE INST ALLA TION Raypak strongly recommends that this manual be re- viewed thoroughly before installing your Hi Delta heater . Please review the General Safety information before installing the heater . Factory warranty does not apply to heaters that have been improperly installed or operated. (Refer to the warranty at the back of this manua ...
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7 General Infor mation Quant ity of Vent Siz e (in. ) Mode l No. Bur ne rs Gas Va lves Blo wers Fl u e Intake 992A 11 2 + 1* 2 10 10 1262A 14 3 + 1* 2 12 10 1532A 17 4 2 12 10 1802A 20 4 2 14 10 2002A 23 5 3 14 10 2072A 23 5 3 14 10 2342A 26 5 3 16 10 * Hi dden solen oid l ocat ed in side o f air pl enum. Burners per Valve Stages % Fire at Stage Mo ...
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Raypak 992A-2342A - page 8
8 GENERAL SAFETY T o meet commercial hot water use needs, the high limit safety control on this water heater is adjustable up to 210°F . However , water temperatures over 125°F can cause instant severe burns or death from scalds. When supplying general purpose hot water , the rec- ommended initial setting for the temperature control is 125°F . S ...
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Raypak 992A-2342A - page 9
9 INST ALLA TION INST ALLA TION Installation Codes Installations must follow these codes: • Local, state, provincial, and national codes, laws, regulations and ordinances • National Fuel Gas Code, ANSI Z223.1/NFP A 54 – latest edition (NFGC) • National Electrical Code, ANSI/NFP A 70 - latest edition (NEC) • Standard for Controls and Safet ...
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Raypak 992A-2342A - page 10
10 U.S. Installations 1 Cana d i a n I nst a lla tions 2 A Clearance above grade , veranda, porch , deck, or balcony 1 ft ( 30 cm) 1 ft ( 30 cm) B Clearance to window or door that may b e opened 4 f t ( 1.2 m) be low o r to sid e of openin g; 1 foo t (30 c m) above op ening 3 ft (91 c m) C Clearance to permanen tly closed window ** D Ver tical clea ...
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Raypak 992A-2342A - page 11
11 In addition, the heater shall be installed such that the gas ignition system components are protected from water (dripping, spraying, rain, etc.) during appliance operation or service (circulator replacement, control replacement, etc.). Clearances Indoor Installations Heater Sid e Mini mu m Clear- ance from Co mbus t ible Surf a ces Recomme nded ...
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Raypak 992A-2342A - page 13
13 three or four sheet metal screws (not supplied) equal- ly distributed around the circumference of the duct. All ducting should be self-supported. The filter housing is not designed to support the air duct. T r uSeal™ Combustion Air In certain applications it may be necessary to utilize the T ruSeal option (sales order option D-21 or D-22) and ...
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Raypak 992A-2342A - page 14
14 b. Not less than the sum of the areas of all vent connectors in the confined space. WARNING: Do not use one permanent opening method if the equipment room is under negative pressure conditions or the equipment is common vented with other gas-fired appliances. 1. V entilation of the space occupied by the heater shall be provided by an opening(s) ...
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Raypak 992A-2342A - page 15
15 5. Remove all plumbing fittings to the header . This will include both inlet and outlet water pipe unions and the pressure relief valve and drain piping. 6. Remove limits, control bulbs and/or thermocou- ples. 7. Remove the eight flange nuts and the in/out head- er from the left-hand side. 8. Remove the eight flange nuts and the return head- er ...
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Raypak 992A-2342A - page 16
16 Failure to exceed 105ºF (41ºC) within 7 minutes may result in the premature failure of the hot surface ignit- er , remote flame sensor , burners and heat exchanger . It can cause operational problems, bad combustion, sooting, flue gas spillage and reduced service life of the vent system. The bypass allows part of the heater discharge water to ...
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Raypak 992A-2342A - page 17
17 Pressur e Drop in Feet of Head F eedwater R e gula tor Raypak recommends that a feedwater regulator be in- stalled and set at 12 psi minimum pressure at the high- est point of the system. Install a check valve or back flow device upstream of the regulator , with a manual shut-off valve as required by local codes. Piping All high points should be ...
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Raypak 992A-2342A - page 18
18 P ota ble W ater and Space Heating 1. All piping materials and components connected to the water heater for the space heating application shall be suitable for use with potable water . 2. T oxic chemicals, such as used for boiler treatment, shall not be introduced into the potable water used for space heating. 3. If the heater will be used to su ...
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Raypak 992A-2342A - page 19
19 circulate water through the heater from the main sys- tem piping. T o complete the installation of the pool heater , the pool thermostat needs to be installed in the main return wa- ter line, upstream of the heater . This will ensure that the heater will be energized at the right time. If the main water line is too far away from the heater and t ...
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Raypak 992A-2342A - page 20
20 shut-off. Close isolation valves and remove water pip- ing from the in/out header on the heater . Drain the heater and any piping of all water that may experience below-freezing temperatures. P ool/Spa Water Chemistr y Wa ter Har dness W ater hardness is mainly due to the presence of cal- cium and magnesium salts dissolved in the water . The con ...
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Raypak 992A-2342A - page 21
21 Gas Supply Connection The heater must be isolated from the gas supply pip- ing system by closing the manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.45 kPa). Relieve test pressure in the gas supply line prior to reconnecting the heater and its manual shut-off va ...
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Raypak 992A-2342A - page 22
22 8. Remove the rubber grommet from the left-hand- side panel and reinstall into the standard main gas opening, located on the right-hand side of the heater . 9. Install a coupling, nipple, union and sediment trap onto the right-hand end of the main gas line and then install the gas line, making sure that a manu- al shut-off valve has been install ...
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Raypak 992A-2342A - page 23
23 CIRCUIT BREAKER WHITE GROUND BLACK GREEN AB C Fig. 18: Wiring Connections Check the power source: AC = 108 V AC Minimum, 132 V AC MAX AB = 108 V AC Minimum, 132 V AC MAX BC = <1 V AC Maximum If the heater does not have a factory-wired stage con- troller , it is factory-wired in an on-off configuration with other stage terminals jumpered. T o ...
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Raypak 992A-2342A - page 24
24 D ANGER: SHOCK HAZARD Make sure electrical power to the heater is discon- nected to avoid potential serious injury or damage to components. ...
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Raypak 992A-2342A - page 25
25 Installer action is required to electrically enable your heater to operate after making the power connections. Y ou must make a closed contact connection on Stage 1 connector of the Central Point Wiring (CPW) board for temperature control connections. This will be done based on the controller option selected with your heater order . 1. For Pool ...
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Raypak 992A-2342A - page 26
26 Combustion Air Su p pl y Exh aus t Configuration Heater Venting Category Certified Mate rial s Combustion Air Inlet M ater ial Ver tic al N atur al Draft Ventin g I “B” Ven t From Ins ide Building (Non-Direct Venting) Hori zonta l Through- the-Wall Venting II I Stainless Steel (Gas Tight) Ver tic al N atur al Draft Ventin g I “B” Ven t F ...
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Raypak 992A-2342A - page 27
27 8. Locate and guard vent termination to prevent acci- dental contact by people or pets. 9. DO NOT terminate vent in window well, stairwell, alcove, courtyard or other recessed area. 10. DO NOT terminate above any door , window , or gravity air intake. Condensate can freeze, causing ice formations. 1 1. Locate or guard vent to prevent condensate ...
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Raypak 992A-2342A - page 28
28 5. Remove the screws, retaining ring and rain gasket from top of heater . 6. Remove the screws, flue collar and gasket from the run side of the tee located in the flue box on top of the heater . 7. Reverse the components and reattach in the new location. 8. Make sure that the stainless steel cover , now lo- cated on the run side of the tee, is s ...
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Raypak 992A-2342A - page 29
29 T er mination The vent terminal should be vertical and should termi- nate outside the building at least 2 ft above the high- est point of the roof that is within 10 ft. The vent cap should have a minimum clearance of 4 ft horizontally from and in no case above or below (unless a 4 ft hori- zontal distance is maintained) electric meters, gas me- ...
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Raypak 992A-2342A - page 30
30 speed. Do not operate summer exhaust fan. Close fireplace dampers. 4. Place in operation the appliances being inspected. Follow the manufacturer ’s instructions for lighting each appliance. Adjust thermostat so appliance will operate continuously . 5. Check the pressure at a pressure tap located 12 in. above the bottom joint of the first verti ...
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Raypak 992A-2342A - page 31
31 Air Inle t Max . Lengt h* Mode l No. Certified Vent in g Mate rial Vent Siz e Max imu m Eq uiv ale nt Vent Lengt h* Combustion Air Intake Pipe Mate rial 10” 12” 992A 10” 1262A 1532A 12” 75’ 100’ 1802A 2002A 2072A 14” 2342A Category III 16” 70’ Room Air 40’ Ducted Combustion Air Galvanized Ste el , PVC , ABS, CPVC 40’ 75’ ...
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Raypak 992A-2342A - page 32
32 For installations in extremely cold climate, it is re- quired that: 1. The vent must be installed with a slight upward slope of not more than 1/4 inch per foot of hori- zontal run to the vent terminal. In this case, an ap- proved condensate trap must be installed per ap- plicable codes. 2. The intake vent must be insulated through the length of ...
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Raypak 992A-2342A - page 33
33 Flues supported only by flashing and extended above the roof more than 5 ft should be securely guyed or braced to withstand snow and wind loads. The air inlet opening MUST be installed 1 ft above the roof line or above normal snow levels that might ob- struct combustion air flow . This dimension is critical to the correct operation of the heater ...
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Raypak 992A-2342A - page 34
34 Fig. 31: External LED Indicator Decal Heater Sequence of Operation Models 992A-1262A 1. The black (hot) wire lead goes directly to the main power switch. This black toggle switch is located at the middle front of the control compartment. 2. When the main power switch is placed in the “ON” position, 120 V AC is applied to the 120 V AC termi- ...
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Raypak 992A-2342A - page 35
35 Ext er nal L igh ts Li ght Co lor I ndi cati on Power Bl ue Main power is on Call For H eat Yellow Thermostat is closed Sa fety Red One or more sa feties is inopera- tiv e Ign iti on Re d Ign iti on m odu le is in o per at ive Flow Green Flow is present Blower 1 Green Blower 1 is on Blower 2 Green Blower 2 is on Blower 3 Green Blower 3 is on Sta ...
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Raypak 992A-2342A - page 36
36 33. Power is applied to the optional equipment inter- lock connection (normally jumpered). 34. The 24 V AC signal is then sent to the 24 V AC safe- ty connector . 35. 24 V AC is now sent to the pressure switch (P .S.) terminal on the ignition module. 36. Once the pressure switch signal is received at the ignition module the hot surface igniter i ...
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Raypak 992A-2342A - page 37
37 9. 24 V AC is sent to the low water cut-off (optional) and the red power light is energized. 10. 24 V AC is applied to the blue power light located on the diagnostic display board. 1 1. 24 V AC is also applied to the red LED safety shut- down light on the front diagnostic board. 12. 24 V AC is applied to the alarm circuit (optional). If the E-5 ...
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Raypak 992A-2342A - page 38
38 37. 24 V AC is now sent to the pressure switch (P .S.) terminal on ignition modules 1 and 2. 38. Once the pressure switch signal is received at ignition module 1, hot surface igniter 1 is ener- gized by a 120 V AC signal from S-1 on ignition module 1. (The hot surface igniter must draw greater than 3.1 amps while being energized or ignition lock ...
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Raypak 992A-2342A - page 39
39 6. T erminals L1 and F1 of the ignition module 2 are powered with 120V AC. 7. 120 V AC power is waiting at relay contacts K-4 to energize the heater blowers. 8. The 120/24 V AC transformer outputs 24 V AC. 9. 24 V AC is sent to the low water cut-off (optional) and the red power light is energized. 10. 24 V AC is applied to the blue power light l ...
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Raypak 992A-2342A - page 40
40 35. Power is applied to the optional equipment inter- lock connection (normally jumpered). 36. The 24 V AC signal is then sent to the 24 V AC safe- ty connector . 37. 24 V AC is now sent to the pressure switch (P .S.) terminal on the ignition modules. 38. Once the pressure switch signal is received at ignition module 1, hot surface igniter 1 is ...
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Raypak 992A-2342A - page 41
41 Ignition Module When additional heat is needed, the combustion air blower starts to purge air from the combustion cham- ber for about 15 seconds. On proof-of-air flow , the air- proving switch closes and the igniter is energized. T o ensure safe operation, the gas valve cannot open until the igniter is verified. The main burner is automatically ...
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Raypak 992A-2342A - page 42
42 Fig. 35: Operating Control Low W ater Cut-Off (Optional) The low water cut-off automatically shuts down the burner whenever water level drops below the level of the sensing probe. A 5-second time delay prevents premature lockout due to temporary conditions such as power fluctuations or air pockets. Fig. 36: Low W ater Cut-Off High and Low Gas Pr ...
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Raypak 992A-2342A - page 43
43 87%-Ef ficienc y Boiler s – Special Instr uctions Wa ter Piping An 87%-efficiency boiler requires a minimum inlet water temperature of 120ºF (49ºC) to prevent exces- sive condensation in the combustion chamber . An 87%-efficiency boiler operated with an inlet tempera- ture of less than 120ºF (49ºC) must have a manual bypass or an approved ...
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Raypak 992A-2342A - page 44
44 WARNING: Contact the vent material manufactur- er if there are any questions about the appliance cat- egory or suitability of a vent material for Category II, III or IV applications. Using improper venting materi- als can result in personal injury , death or property damage. V ent T er minal Location 1. Condensate can freeze on the vent cap. Fro ...
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Raypak 992A-2342A - page 45
45 Horizontal Thr ough-the-Wall V enting (Categor y IV) WARNING: V ent connectors serving appliances vented by natural draft shall not be connected into any portion of mechanical draft systems operating under a positive pressure. Fig. 41: Horizontal Through-the-W all V enting (Category IV) Installation These installations utilize the boiler-mounted ...
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Raypak 992A-2342A - page 46
46 The stainless steel direct vent cap must be furnished by the boiler manufacturer in accordance with its list- ing (sales order option D-15). Use only double-wall vent pipe and the special gas vent pipes listed for use with category II or IV gas burn- ing boilers, such as the stainless steel Saf-T vent by Heat Fab Inc. (800-772-0739), Protech Sys ...
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Raypak 992A-2342A - page 47
47 Direct V ent - V er tical Vert ica l Ve nt in g Height* Air I nlet Max . Length** Mode l Certified Vent in g Mate rial Vent Siz e Min. Max . Combustion Air Intake Pipe Mate rial 10” 12” 992AE 10” 1262AE 1532AE 12” 75’ 100’ 1802AE 2002AE 2072AE 14” 2342AE Category II or IV 16” 5’ 25’ Galvanized Steel, PVC , ABS, CPVC 40’ 75? ...
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Raypak 992A-2342A - page 48
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Raypak 992A-2342A - page 50
50 ST ART -UP Pre Star t-up Filling System (Heating Boilers) Fill system with water . Purge all air from the system. Lower system pressure. Open valves for normal sys- tem operation, and fill system through feed pressure. Manually open air vent on the compression tank until water appears, then close vent. Air Pur ge (Domestic Hot W ater Heaters) Pu ...
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Raypak 992A-2342A - page 51
51 Prepar ation Check P ower Supply With multi-meter at incoming power , check voltage between: Hot - Common (≈120 V AC) Hot - Ground (≈120 V AC) Common - Ground (< 1 V AC) Attach Manometers to Measure Pr essures 1. Turn of f main gas valve. 2. Attach 24” scale manometer to the first main gas shut-off valve pressure tapping. 3. Attach (1) ...
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Raypak 992A-2342A - page 52
52 Safety Inspection 1. Check all thermostats and high limit settings. 2. During the following safety checks leave manome- ters hooked up, check and record. 3. If other gas-fired appliances in the room are on the same gas main, check all pressures on the Hi Delta with all other equipment running. 4. Check thermostats for ON-OFF operation. 5. Check ...
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Raypak 992A-2342A - page 53
53 1. Manually close the downstream leak test valve. 2. Open test point A and connect a manometer to it. V erify that there is gas pressure and that it is with- in the proper range (NOTE: must not exceed 14.0 in. WC). 3. Open test point B and connect a rubber tube to it. Connect the other end of the tube to a manometer and look for a build-up of pr ...
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Raypak 992A-2342A - page 54
54 10. T o restart system, follow lighting instructions in the Operation section. 1 1. Check to see that the high limit control is set above the design temperature requirements of the system. For multiple zones: Check to make sure the flow is adjusted as required in each zone. 12. Check that the heater is cycled with the thermo- stat. Raise to the ...
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Raypak 992A-2342A - page 55
55 TR OUBLESHOO TING Ste p 7 Ste p 6 Ste p 5 Step 1 Step 2 Step 3 Step 4 Is there a Call For Heat? Is Disable j um p er intact? ( J1 ) Is there 120VAC at J8 Connecto r on the CPW board? Do the combustion air blowers come on? Is 24VAC at present at TH (J3 & J12 on CPW board and orange wire on ignition module)? Check flow switch, all connectors o ...
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Raypak 992A-2342A - page 56
56 MAINTENANCE Suggested Minimum Maintenance Schedule Regular service by a qualified service agency and maintenance must be performed to ensure maximum operating efficiency . Maintenance as outlined below may be performed by the owner . Daily 1. Check that the area where the heater is installed is free from combustible materials, gasoline, and othe ...
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Raypak 992A-2342A - page 57
57 W eekl y For low-pressure heaters, test low-water cut-off device. (With at least one stage of the appliance on, depress the low water cut-off test button, appliance should shut-off and ignition fault light should come on. Depress reset button to reset). 1. Check igniter . (Resistance reading should be 42- 70 ohms at ambient temperature.) 2. Chec ...
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Raypak 992A-2342A - page 58
58 APPENDIX Inside Air Contamination All heaters experience some condensation during start-up. The condensate from flue gas is acidic. Combustion air can be contaminated by certain vapors in the air which raise the acidity of the condensate. Higher acidity levels attack many materials including stainless steel, which is commonly used in high effi- ...
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Raypak 992A-2342A - page 59
59 LIMITED PARTS WARRANTY HI DELTA – TYPES H AND WH MODELS 992A–2342A SCOP E Ray pak, Inc. (“ Ray pak” ) w arr ants to the o rig inal ow ner that al l par ts of th is hea ter w hic h a re ac tu ally man ufac tur ed by R aypak w ill b e fre e fro m fai lur e un der nor mal use and s er vic e for th e sp ecif ie d wa rra nty per iods and s ub ...
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Raypak 992A-2342A - page 60
60 LIMITED PARTS WARRANTY HI DELTA – TYPE P MODELS 992A–2342A SCOP E Ray pak, Inc. (“ Ray pak ”) w arr ants to th e orig inal ow ner th at al l par ts o f this hea ter w hic h a re actu al ly m anuf act ured by R ay pak wil l be fre e fro m fai lur e un der nor mal use and s ervic e for the s pec if ied wa rra nty per io ds a nd s ubjec t t ...
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Raypak 992A-2342A - page 61
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Raypak 992A-2342A - page 64
ww w .raypak.c om Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (805) 278-5468 Raypak Canada Limited, 2805 Slough St., Mississauga, Ontario, Canada L4T 1G2 (905) 677-7999 Fax (905) 677-8036 Litho in U.S.A. ...
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