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Suburban SW6PR Service Training Manual

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SUBURBAN DSI WATER HEATER SEQUENCE
ELAPSED TIME FUNCTION TIME
SEQUENCE OF OPERATION FAULT
0
Seconds
15-18
Seconds
The ON/OFF switch controls the
operating circuit to the Water Heater.
When the thermostat closes power is
applied to the module board. The reset
light will illuminate. The module board
will perform a pre trial for ignition purge
cycle.
NO RESET LIGHT
5-7
Seconds
TRIAL FOR IGNITION
The reset light turns off. The module
board then simultaneously provides
voltage (10.5-13.5 VDC) to the gas valve
allowing fuel to ow to the burner and
creates a high voltage current through
the electrode wire to the electrode
creating spark for ignition. As the fuel
exits the burner tube it passes through
the spark at the electrode and ignites.
The electrode is heated by the burner
ame generating a small micro amp
current which travels back through the
electrode and wire to the module board
to prove ame sense.
*If ignition is not successful, the module
board will attempt 2 more trials for
ignition, each trail for ignition will be
preceded by a 15-18 second purge
cycle, during which time the reset light
will be illuminated. If all three trails for
ignition are unsuccessful, the module
board will go into the LOCKOUT mode.
The reset light will remain illuminated
during LOCKOUT.
HEATING CYCLE
Once ame sense is conrmed, the
module board will stop sending the high
voltage current to the electrode and
continue applying voltage to the gas
valve until the thermostat opens or the
power switch is turned off.
NO IGNITION
NO SPARK
GAS VALVE DOESN’T OPEN
BURNER LIGHTS
MOMENTARILY, THEN GOES
BACK OUT
DELAYED IGNITION
(back ring)
LOCKOUT
20-25
Seconds
NO HOT WATER AT FAUCET
OR WATER NOT HOT
ENOUGH
WATER TEMPERATURE TOO
HOT
EXCESSIVE WEEPING FROM
T&P VALVE
SOOT IN EXHAUST VENT
44-50
Seconds
69-75
Seconds
Varies
16

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Suburban SW6PR Specifications

General IconGeneral
BrandSuburban
ModelSW6PR
CategoryWater Heater
LanguageEnglish

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