Startup And Checkout; Gas Control Knob Settings - Honeywell VR8205 Installation Instructions Manual

2
S87B CONTROL MODULE
5
24V (GND) ALARM
VALVE
VALVE
24V
4
IGNITER-SENSOR AND
BURNER GROUND
TEMPERATURE
CONTROLLER
3
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION.
2
3
MAXIMUM IGNITER-SENSOR CABLE LENGTH: 3 ft. (0.9 m) OR LESS.
4 3A REPLACEABLE FUSE.
ALARM TERMINAL PROVIDED ON SOME MODELS.
5
Fig. 7. Typical wiring connections for 24 volt control
in S87 Direct Ignition System.
DUAL VALVE
S89C,G,J/S890C,G,J
COMBINATION
HOT SURFACE
GAS CONTROL
IGNITION CONTROL
MV
VALVE
MV
VALVE (GND)
24V
TH-W
24V (GND)
GND (BURNER)
VENT
DAMPER PLUG
BURNER
GROUND
2
THERMOSTAT
OR CONTROLLER
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED. MAKE SURE L1 AND L2 ARE NOT
REVERSED; THIS WOULD PREVENT FLAME DETECTION.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
SEN TERMINAL AND Q354 FLAME SENSOR ON D MODELS ONLY.
3
Fig. 8. typical wiring connections with 24 volt
control in S89 Direct Ignition System.
VR8105, VR8205, AND VR8305 DIRECT IGNITION COMBINATION GAS CONTROLS
ALARM, IF USED
GND
MV
MV
DUAL VALVE
COMBINATION
GAS CONTROL
Q347 IGNITER-SENSOR
BURNER
HOT
SURFACE
IGNITER-
SENSOR
WHITE
L2
BLUE
HSI
BLACK
L1
BLUE
HSI
SEN
Q354 FLAME
SENSOR
3
LIMIT
CONTROLLER

STARTUP AND CHECKOUT

L1
(HOT)
WARNING
L2
1
Fire or Explosion Hazard,
Can cause severe injury, death or property
damage.
1. Do not force the gas control knob on the
appliance. Use only your hand to turn the gas
control knob. Never use any tools.
2. If the knob does not operate by hand, the
control should be replaced by a qualified
service technician.

Gas Control Knob Settings

Gas control knob settings are as follows:
• OFF: Prevents pilot and main gas flow through the
control.
• ON: Permits gas to flow into the control body. Under
control of the thermostat and direct ignition module,
gas can flow to the main burner.
NOTE: Controls are shipped with the gas control knob in
the ON position.
Perform Gas Leak Test
M9043A
WARNING
Fire or Explosion Hazard,
Can cause severe injury, death or property
damage.
Perform Gas Leak Test every time work is done on
a gas system to prevent gas leaks and possible
explosion or fire.
Gas Leak Test
1. Paint pipe connections upstream of the gas control
with rich soap and water solution. Bubbles indicate
a gas leak.
2. If a leak is detected, tighten the pipe connections.
3. Light the main burner. Stand clear of the main
burner while lighting to prevent injury caused from
hidden leaks that could cause flashback in the
appliance vestibule.
4. With the main burner in operation, paint the pipe
joints (including adapters) and the control inlet and
L1
(HOT) outlet with rich soap and water solution.
L2 5. If another leak is detected, tighten the adapter
1
screws, joints, and pipe connections.
6. Replace the part if the leak cannot be stopped.
Turn On System
Rotate the gas control knob counterclockwise
ON.
M9047
Turn On Main Burner.
Follow appliance manufacturer instructions or turn
thermostat up to call for heat.
7
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