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THERMOSTAT ADJUSTMENT 

(Replaces pg. 19 in instruction manual.) 

 
The thermostat dial is adjusted to its lowest setting

 

when shipped from the factory. 

When adjusting the thermostat, it should be remembered that lower temperature 
settings are more energy efficient. To adjust the thermostat, turn the dial clockwise until 
the minimum acceptable temperature is set. It is suggested that the starting point 
setting not exceed the 120°F 

(49°C)

 or “HOT” setting on the thermostat.

 

 

HOT

LO

W

HO

T

VE

RY

SWITCH SHOWN
IN "ON" POSITION

A

B

C

THERMOSTAT

DIAL

ON

OFF

STATUS

Honeywell

 

Figure 2. 

Gas Valve. 

 

The thermostat dial is set to its lowest temperature setting when shipped from the 
factory.  Remember that lower temperature settings are more energy efficient.  Adjust 
the temperature by turning the thermostat dial.  It is suggested that the starting point 
setting not be greater than the “Hot” mark on the thermostat dial (approximately 120°F 
[

48.9°C

]).  Rotate the thermostat dial counter-clockwise

  

 

to decrease the 

temperature setting.  Rotate the thermostat dial clockwise 

 

 to increase the 

temperature setting.  Adjust the dial until the minimum acceptable temperature is 
achieved. 

 

 DANGER

 

Hotter water increases the risk of scald injury.  Scalding may occur within five (5) 
seconds at a temperature setting of 140

°

(60

°

C)

.  To protect against hot water injury, 

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 water lines.  A 
licensed plumbing professional or local plumbing authority should be consulted. 

Note:  

This water heater is equipped with an energy cut out device to prevent 

overheating.  Should overheating occur or the gas supply fails to shut off, turn off the 
manual gas control valve to the water heater, and call a qualified service technician. 

Note: 

 Whenever the water heater is filled with cold water, condensate will form on the 

cool tank surface and drops of water will fall on the hot burner and combustion 
chamber surfaces producing a “sizzling” noise.  Condensation is normal and does not 
indicate a leak.  It will disappear when the tank becomes heated.

 

 

Содержание Defender Safety System 238-48248-00

Страница 1: ...on Resistant System In the event of improper usage or storage of gasoline or other flammable materials in the location where the water heater is installed the technology will resist ignition of the fl...

Страница 2: ...must be installed on top of a metal or wood panel or equivalent extending beyond the full width and depth of the water heater by at least 3 in 7 6 cm in any direction or if the appliance is to be ins...

Страница 3: ...ance if any part has been under water Immediately call a qualified technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water a fi...

Страница 4: ...lockwise to decrease the temperature setting Rotate the thermostat dial clockwise to increase the temperature setting Adjust the dial until the minimum acceptable temperature is achieved DANGER Hotter...

Страница 5: ...adjusting air mixture and do not have an adjustable air shutter See Figure 3 At periodic intervals a visual check of the main burner and pilot flames should be made to determine if they are burning p...

Страница 6: ...6 INSTALLATION FOR POTABLE WATER Replaces pg 28 in instruction manual Figure 4...

Страница 7: ...7 PARTS LIST DRAWING Replaces pg 29 in instruction manual Figure 5 1 3 4 5 6 7 8 9 10 12 13 14 15 16 15A 19 20 21 22 23 24 25 27 28 11 26 2 18 17...

Страница 8: ...ccessory Module 4 Jacket 18 Junction box wire harness 5 Heat trap outlet 19 Thermal well 6 Anode Outlet Device 20 Gas control 7 Heat trap inlet 21 FV sensor RTS wire harness 8 Baffle 22 FV sensor clip...

Страница 9: ...emicals such as those used for boiler treatment must not be introduced into potable water used for space heating 2 This water heater must not be connected to an existing heating system or component s...

Страница 10: ...ed with a flammable vapor water heater control will shut down the water heater and display a code of 7 flashes and then a 3 second pause If a 7 flash error code is present check to see if flammable va...

Страница 11: ...d Accessory Module If wiring in conduit is required cut the flexible line cord at least 6 in 15 2 cm from the bushing Unscrew and remove the Setback Control Junction Box Assembly lid Pull the cord int...

Страница 12: ...REPLACED WITH APPLIANCE WIRE MATERIAL WITH A MINIMUM TEMPERATURE RATING OF 105 C AND A MINIMUM SIZE OF NO 18 AWG ELECTRICAL RATING HOT LOW HOT VERY A C B Honeywell W PILO SETBACK GAS R B W B G Y POWER...

Страница 13: ...t 2 Pilot tube block or restricted 3 Oxidation build up on pilot electrode 4 Wire damage to pilot assembly or bad connection at gas valve Two flashes three second pause Relay not working Faulty relay...

Страница 14: ...r exposed to excessive moisture 3 Flammable vapor sensor exposed to extreme ambient temperature 4 Resettable thermal switch open Eight flashes one flash three second pause Flammable vapor sensor out o...

Страница 15: ...sends power to the relay which then closes the relay contacts 4 The control starts the ignition process by providing a spark at the pilot electrode and allowing gas to flow to the pilot 5 When the pil...

Страница 16: ...16 Notes...

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