Features And Components; Basic Operation - State Water Heaters SSF 100 Instruction Manual

bAsIC OPERAtIOn

The water heaters covered in this manual have a helical coil
shaped heat exchanger that is submerged in the storage tank.
The water heater's main burner is a radial design burner, it
is mounted on the top and fires downward through the heat
exchanger. This is a forced draft burner; hot burning gases are
forced through the heat exchanger under pressure and exit
through the exhaust/vent connection located at the middle of the
water heater. See Figure 1 and Figure 2.
SSX100
INTAKE AIR
(combustion air)
CONNECTION
3 INCH PVC

fEAtuREs And COMPOnEnts

SSF100
BLOWER
BURNER
ASSEMBLY
MAIN
BURNER
(radial design)
HEAT
EXCHANGER
HELICAL
COIL
VENT
(exhaust)
OUTLET
SOLAR
LOOP
INTERNAL
SINGLE
WALL HEAT
EXCHANGER
COIL
figure 1
bLOwER/buRnER AssEMbLy dEtAIL
INTAKE AIR
(combustion air)
CONNECTION
3 INCH PVC
BLOWER
FLANGE
FLAME
SENSOR
MAIN
BURNER
(radial design)
HOT SURFACE
IGNITER
120,000 Btu/hr MODEL
COMBUSTION
BLOWER ASSEMBLY
hot surface Igniter
The control system energizes the Hot Surface Igniter with 120
VAC during the igniter warm up period. When the igniter is
energized it produces sufficient heat, >1800°F (>982°C), to ignite
the main burner.
nOtE: Care must be taken when handling the igniter to prevent
breakage.
flame sensor
The control system also monitors the flame sensor to confirm
a flame is present at the main burner. If a flame is not verified
during the ignition trial period (3-5 seconds) the control system
will immediately de-energize the 24 Volt Gas Valve. See the
Sequence of operation Flow Chart on page 56.
FLAME
SENSOR
199,000 & 250,000 Btu/hr MODELS
7
COMBUSTION
BLOWER
figure 2
INTAKE AIR
(combustion air)
CONNECTION
3 INCH PVC
BLOWER
FLANGE
HOT SURFACE
IGNITER
MAIN
BURNER
(radial design)