Installation guide

Page 16
Part No. XG0509
DFSP Rio Pedestal Stove
Quality Gas Products by Montigo
Maintenance
Troubleshooting
If your fireplace still does not operate correctly, consult your dealer or
the manufacturer.
All service and repairs should be performed by a qualified
agency.
All spare parts, optional fans (see optional fan instruction guide), and
optional trim finishes are available from the manufacturer or your local
dealer.
Gas Control Valve
Figure 32. Honeywell VS8520 gas valve.
Pilot Burner Adjustment
1. Locate Pilot Adjustment Screw. (See figure 32.)
2. Adjust pilot screw to provide properly sized flame as shown in
figure 33).
3. After installing or servicing, leak test with a soap solution with
main burner on. Coat pipe and tubing joints, gasket etc. with soap
solution. Bubbles indicate leaks. Tighten any areas where the
bubbles appear until the bubbling stops completely.
Figure 33. Pilot Burner
Troubleshooting
The following is a troubleshooting chart of possible problems:
PROBLEM CORRECTIVE ACTION
Noisy Pilot Flame Locate pilot adjustement screw on gas
control valve. Flame is decreased by
turning adjustment screw clockwise.
Pilot won’t ignite Disconnect remote wires and try to
light pilot. If pilot now works, remote
connections are faulty. Check wiring
diagram figure 32.
Main burner will 1. Check wiring (see figure 32).
not light 2. Check wall switch for proper con-
nection.
TH
On/Off Switch
Power Generator
TP
TH-TP
- Turn Gas Supply Off
- Set thermostat to
call for heat
SV9500 / SV9600
is powered
(24VAC nominal)
HSI
Terminals
NOTE: Before Troubleshooting, Familiarize Yourself With
The Startup And Checkout Procedure.
START
HONEYWELL SV9500 /9600
Troublshooting Sequence
INSET
NO
CHECK:
- Line voltage power
- Low voltage transformer
- Limit Controller
- Thermostat
- Wiring
- Air proving switch on
combustion air blower system
-Vent damper (if used) is open
and end switch made
NO
NO
YES
NO
YES
Unplug Pilot Burner Cable,
Measure Voltage at
SV9500/SV9600 HSI
Terminals (24VAC
Nominal, see INSET)
Replace
SV9500/
SV9600
Igniter warms up and
glows red.
YES
YES
NO
YES
NO
Pilot Valve opens.
Replace Igniter /
Flame Rod Assembly
Replace SV9500/SV9600
NO
NO
YES
YES
Turn gas on.
Pilot Burner Lights?
Main Valve opens?
SYSTEM OK
Discard old Igniter /
Flame Rod Assembly
Measure Volume to
SV9500 / SV9600 Voltage
must be at least 19.5 VAC
Check
Transformer
Line Volt
Supply
Replace Igniter /
Flame Rod Assembly
Replace
SV9500 /
SV9600.
Save old
Igniter/ Flame
Rod Assembly
for service.
Replace Igniter / Flame
Rod Assembly and retain.
Restart troubleshooting
Sequence. Does main
valve open?