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14

Installation (Water connections) continued- 
 

 

 

 

This water heater can deliver scalding temperature water at any faucet in the 
system.  Be careful whenever using hot water to avoid scalding injury.  Certain 
appliances such as dishwashers and automatic clothes washers may require 
increased temperature water.  By setting the thermostat on this water heater to 
obtain the increased temperature water required by these appliances, the 
potential for scald injury increases.  To protect against injury, you should install 
an ASSE approved mixing valve in the water system.  This valve will reduce 
point of discharge temperature by mixing cold and hot water in branch supply 
lines.  Such valves are available from the manufacturer of this water heater or a 
local plumbing supplier.  Please consult with a plumbing professional. 

 

 

 
 
 
 
 
 
 
 
 
 
 
 

 

WARNING 

Hydrogen gas can be produced in an operating water heater that has not had 
water drawn from the tank for a long period of time (generally two weeks or 
more).  Hydrogen gas is extremely flammable.  To prevent the possibility of 
injury under these conditions, we recommend the hot water faucet to be open 
for several minutes at the kitchen sink before you use any electrical appliance, 
which is connected to the hot water system.  If hydrogen is present, there will be 
an unusual sound such as air escaping through the pipes as hot water begins to 
flow.  Do not smoke or have open flame near the faucet at the time it is open. 

APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS 

120°F 

(49°C)

 

More than 5 minutes 

125°F 

(52°C)

 

1½ to 2 minutes 

130°F 

(54°C)

 

About 30 seconds 

135°F 

(57°C)

 

About 10 seconds 

140°F 

(60°C)

 

Less than 5 seconds 

145°F (

63°C

Less than 3 seconds 

150°F 

(66°C)

 

About 1½ seconds 

155°F 

(68°C)

 

About 1 second 

can cause severe burns 

are at highest risk of being

Children, disabled and elderly

instantly or death from scalds.

Water temperature over 125°F 

Feel water before bathing or

before setting temperature

available.

showering.

Temperature limiting valves are

Review this instruction manual

at water heater.

scalded.

Summary of Contents for RG2DVMH30T6X-264

Page 1: ...nstalled and serviced by a plumbing professional MANUFACTURED HOME MOBILE HOME CLOSED COMBUSTION DIRECT VENTING INSTALLATION AND OPERATING INSTRUCTION MANUAL FOR YOUR SAFETY Do not store or use gasoli...

Page 2: ...installation of this water heater We require that you carefully read this manual as well as the enclosed warranty and refer to it when questions arise If you have any specific questions concerning you...

Page 3: ...arances 8 Drain Pan Installation 9 Combustion Air Supply 10 Venting 11 Water Connections 12 Gas Connections 15 Gas Conversion Instructions 16 GENERAL OPERATION 20 Lighting and Shutdown Instructions 21...

Page 4: ...ntake tube and heater tie down materials These components for field installation may have been shipped with this heater and must be installed according to these instructions see figure 1 No other comp...

Page 5: ...tionally the water heater should be flushed with appropriate dissolvers to eliminate any bacteria INSTALLATION Locating the Water Heater This water heater MUST NOT be installed in any location where g...

Page 6: ...ature and pressure relief valve WARNING Water heaters are heat producing appliances To avoid damage or injury there must be no materials stored against the water heater or vent air intake system and p...

Page 7: ...eater is to be a Sealed to the floor with sealant in a smooth and easily cleanable way or b Installed with an optional leg kit that includes legs and or extensions that provide a minimum clearance of...

Page 8: ...r wood panel or equivalent extending beyond the full width and depth of the appliance by at least 3 inches 7 6 cm in any direction or if the appliance is to be installed in an alcove or closet the ent...

Page 9: ...final installation 4 Align drain pan hole with hole cut in floor and underside sheathing for air intake 5 Apply 4 diameter circle of silicone around bottom of air intake plate and screws used to secu...

Page 10: ...yellow luminous burner flame causing carboning or sooting of the combustion chamber burners and flue tubes with possible damage to the heater AIR INTAKE INSTALLATION 3 7 6cm diameter telescoping air...

Page 11: ...e fastened to the top of the water heater and to the adjacent walls with the screws provided See Figure 5 Venting Make certain the flue baffle is in place and centered in the flue tube Cut a 7 1 4 inc...

Page 12: ...let and hot water outlet are dielectric waterway fittings with 3 4 NPT male thread Make the proper plumbing connections between the water heater and the plumbing system to the house Install a shut off...

Page 13: ...Vacuum Relief Valves The combination temperature and pressure relief valve must be marked with a maximum set pressure not to exceed the maximum working pressure of the water heater The combination te...

Page 14: ...e tank for a long period of time generally two weeks or more Hydrogen gas is extremely flammable To prevent the possibility of injury under these conditions we recommend the hot water faucet to be ope...

Page 15: ...dope has become lodged in the inlet screen of the gas valve Extreme care must be taken to ensure no pipe dope enters the gas valve Avoid excessive torque when tightening the gas supply line to the gas...

Page 16: ...or by removing cap from gas regulator Depress and rotate knob clockwise to NAT setting using a screwdriver Replace cap Figure 6 3 Change the pilot regulator by removing pilot regulator cap Depress and...

Page 17: ...provided with the water heater 2 Change the main gas regulator to LP as noted in step 2 of the instructions 3 Change the pilot regulator to LP as noted in step 3 of the instructions 4 Replace equipped...

Page 18: ...igure 7 only 1 Follow the instructions above except remove cap from gas regulator and depress and rotate plunger counterclockwise 2 Remove main burner orifice and pilot assembly and replace with RED c...

Page 19: ...cedure 9 To light pilot follow the lighting instructions provided on the water heater and in this installation and operation instruction manual 10 Remove equipped for card from cloth bag and attach to...

Page 20: ...e gas control knob clockwise to the OFF position OR for the Robertshaw control rotate the gas control knob clockwise to the OFF position 3 Shut off the gas supply to the water heater 4 Close the cold...

Page 21: ...21 Lighting and Shutdown Instructions...

Page 22: ...al until the minimum acceptable temperature is achieved See Figure 9 above for approximate temperature settings Figure 10 The thermostat dial is set to its lowest temperature setting when shipped from...

Page 23: ...thermostat dial It is suggested that the starting point setting not be greater than the mark on the thermostat dial approximately 120 F 48 9 C as pictured above Rotate the thermostat dial clockwise to...

Page 24: ...the water system This valve will reduce point of discharge temperature by mixing cold and hot water in branch water lines A licensed plumbing professional or local plumbing authority should be consult...

Page 25: ...tion temperature and pressure relief valve to insure that the valve has not become encrusted with lime Lift the lever at the lever at the top of the valve several times until the valve seats properly...

Page 26: ...E WATER HEATER ARE WARRANTED Manufactured under one or more of the following U S Patents 5 277 171 5 341 770 5 372 185 5 485 879 5 574 822 5 596 952 5 660 165 5 682 666 5 761 379 5 943 984 5 954 492 5...

Page 27: ...27 TYPICAL INSTALLATION...

Page 28: ...oor 2 Jacket Top 13 Convertible gas control valve 3 Fiberglass Insulation 14 Pilot Assembly 4 Glass Lined Tank 15 Gas Feed Line Burner 5 Tank Skirt Assembly 16 Main Burner Orifice 6 Jacket Base Assemb...

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