Honeywell SmartValve SV9520H Manual page 8

SV9520H SMARTVALVE™ SYSTEM CONTROL LINE VOLTAGE POLARITY SENSE MODELS
Model Type of Nominal Inlet
Type Gas Pressure Range
Slow NAT 5.0 to 7.0
LP 12.0 to 14.0
Model Type of Nominal Inlet
Type Gas Pressure Range
Slow NAT 1.2 to 1.7
LP 2.9 to 3.9
40 VA
TRANSFORMER
NEUTRALS
P1
4 1
5 2
6 3
R
COM
24 VAC
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION
AS REQUIRED.
2 CONNECT THE 120V (HOT) LEAD TO L1 ON ST9160.
3 APPLIANCE CHASSIS MUST HAVE RELIABLE CONNECTION TO EARTH GROUND.
Fig. 7. SV9520 typical wiring connections in fan assisted warm air furnace with ST9160 Fan Board.
SERVICE
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury
or death.
Do not disassemble the ignition system control; it
contains no replaceable components. Attempted
disassembly or repair can damage the ignition
system control.
69-1383
Table 7. Pressure Regulator Specification Pressures (in. wc)
Factory Set Nominal Outlet Pressure
Step
—
—
Table 8. Pressure Regulator Specification Pressures (kPa).
Factory Set Nominal Outlet Pressure
Step
—
—
L2
TO 120 VAC, 60 HZ
POWER SUPPLY
L1
2
(HOT)
L1 XFMR CONT COOL
EAC
ST9160
ELECTRONIC
HEAT
FAN TIMER
HUM
MOTOR M2
PARKING
TERMINALS
M1
C W Y G
Y G
R W
THERMOSTAT
Full Rate
3.5
10.0
Full Rate
0.9
2.5
1
ROLL-OUT
ELECTRONIC SWITCH
AIR CLEANER
LIMIT
CIRCULATING
SWITCH
FAN
HUMIDIFIER
C
R
DATA
C3
3
NEUTRAL
4
L1
2
1
SV9520
CAUTION
Equipment Damage Hazard.
Improper wiring can damage equipment.
1. Do not apply a jumper across or short the
thermostat, 24V hot or 24V common terminal
in the SV9520 wiring harness. Doing so can
burn out the heat anticipator in the thermostat
or damage the system transformer.
2. After servicing, verify proper system operation.
IMPORTANT
Allow 60 seconds after shutdown before re-
energizing step-opening model to assure lightoff
at step pressure.
8
Setting Range
Step
—
—
Setting Range
Step
—
—
AUXILIARY
LIMIT SWITCH
AIR PROVING
SWITCH
(OPTIONAL)
C1
5
1
6
2
3
7
4
8
C2
4 3 2 1
FLAME ROD
HOT
SURFACE
IGNITER
NEUTRAL
HOT
Full Rate
3.0 to 5.0
8.0 to 12.0
Full Rate
0.7 to 1.2
2.0 to 3.0
COMBUSTION
AIR BLOWER
AIR
3
M17606