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DUAL
CONTROLLER
GAS VALVE
INTERMITENT
IGNITION
DEVICE
CONTROL
DAMPER
TRANSFORMER
Technical Training Department
Ashland City, TN ©2003
SBD TANK TYPE HEATERS
SERVICE HANDBOOK
COMPONENT PART INFORMATION
NAME
THERMOST
AT
HIGH LIMIT
OPENS - 205
(ECO)
NATURAL
GAS
SBD 500; 24VAC, 60hz, Dual
PROPANE
GAS
SBD 500; 24VAC, 60hz, Dual
NATURAL
GAS AND
PROPANE
GAS
COMPLETE
ASSEMBLY
MOTOR
P.C. BOARD
W/RELAY
40 VA, 50-60 HZ, CLASS 2 "B"
SPECIFICATIONS
O
120-180
RANGE, + 4
DIFFERENTIAL,
LIQUID FILLED, ANTI-
STACKING
O
FIXED, MANUAL
RESET BELOW 185
SBD 120-400;24VAC, 60hz,
.6A,.7" to 3.5" W.C.,
STEP OPEN
Gas Valve,
STEP OPEN
SBD 120-400;
2.5 – 10" W.C.
STEP OPEN
Gas Valve,
STEP OPEN
24 VAC, 50-60 HZ, .1A;
.7 MICROAMP SIGNAL
CONTINUOUS RETRIAL
24 VAC, 60 HZ, 120 RPM, 5
(NOT 110, 111 SERIES)
Service Switch
(NOT 110, 111 SERIES)
120 V PRIMARY, 24 VAC
SECONDARY,
51
STATE PART
NUMBERS
O
O
, 5
O
# 192827-2
# 193366-0
# 192827-3
# 193366-1
SEE PARTS LIST
WATT
# 192828
193325
#6521
#6522
#193444
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