Montigo HW-Series DF Owner's Manual download pdf (Page 21)

Page 21

HWDF-Series Gas Fireplace

Part No. XG0190 - 071409

Gas Control Valve

Pilot Burner Adjustment

1. Locate Pilot Adjustment Screw. (See gure 34.)

2. Adjustpilotscrewtoprovideproperlysizedameasshownin

gure 34).

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 34. Pilot Burner.

Troubleshooting

The following is a troubleshooting chart of possible problems:

PROBLEM CORRECTIVE ACTION

Noisy Pilot Flame Locate pilot adjustment 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 gure 30.

Main burner will 1. Check wiring (see gure 30).

not light 2. Check wall switch for proper

connection.

HW38-DF

Troubleshooting

Ifyourreplacestilldoesnotoperatecorrectly,consultyourdealeror

the manufacturer.

All service and repairs should be performed by a qualied agency.

Allspareparts,optionalfans,andoptionaltrimnishesareavailable

from your local dealer or the manufacturer.

HW38-DF-I

Figure 33. Sit Nova 820 gas valve.

Manifold Pressure

Test Connection

Pilot Adjustment Screw

Inlet

Pressure

Power

Generator

Wall Switch

Spill Switch

- 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

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

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

Pilot Valve opens.

Replace Igniter /

Flame Rod Assembly

Replace SV9500/SV9600

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?

Maintenance

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 27 28

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Montigo HW-Series DF Owner's Manual Page 21

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