beautypg.com

Raypak 0180B User Manual

Page 33

background image

ADJUSTMENTS/REPLACEMENTS OF

COMPONENTS

DANGER - SHOCK HAZARD

Make sure electrical power to the boiler is disconnect-

ed to avoid potential serious injury or damage to com-

ponents.

1. Gas Valve Replacement

a) Shut off electrical power and gas supply to the

boiler.

b) Remove gas piping to gas valve inlet.

c) Disconnect wiring connections, pilot tubing

(when equipped).

d) Remove screws (2) holding the burner tray.

e) Slide burner tray out.

f) Remove gas valve bracket screws and bracket.

g) Unscrew gas valve from gas pipe.

h) Reverse above procedure to re-install.

2. Pilot Burner Cleaning or Replacement (Standing

Pilot)

a) Shut off electrical power and gas supply to the

boiler.

b) Disconnect gas piping to gas valve.

c) Disconnect wiring connections to gas valve.

d) Remove screws (2) holding the burner tray.

e) Slide burner tray out.

f) Remove screw holding pilot lighter tube.

g) Remove screws (2) holding pilot bracket on the

burner tray.

h) Disconnect thermocouple and pilot tubing from

the gas valve.

i) Remove pilot burner from pilot bracket.

j) Remove pilot orifice and blow away lint or dirt.

Clean with wire or small brush.

NOTE: Make sure pilot orifice is clear, but do not

enlarge the hole.

k) Reverse above procedure to re-install.

3. Flame Roll-out Switch Replacement

a) Shut off electrical power to the boiler.

b) Remove wiring connections to switch.

c) Remove screws (2) holding the switch.

d) Reverse above procedure to re-install.

4. Vent Thermal Switch Replacement

a) Shut off electrical power to the boiler.

b) Remove wiring connections to switch.

c) Remove the screws (2).

d) Reverse above procedure to re-install.

5. Ignition Module Replacement

a) Shut off electrical power to the boiler.

b) Remove control cover screws and open control

compartment.

c) Disconnect wiring connections to module.

d) Remove screws (2) holding module.

e) Reverse above procedure to re-install.

6. Transformer Replacement

a) Shut off electrical power to the boiler.

b) Remove control cover screws and open control

compartment.

c) Disconnect wiring connections from trans-

former leads.

d) Remove screws (2) holding transformer.

e) Reverse above procedure to re-install.

7. Pump Relay Replacement

a) Shut off electrical power to the boiler.

b) Remove control cover screws and open control

compartment.

c) Disconnect wiring to the relay.

d) Remove screws (2) holding relay.

e) Reverse above procedure to re-install.

8. Adjustable High Limit Control

a) Shut off electrical power to the boiler.

b) Remove control cover screws and open

control compartment.

c) The control is factory set at 180°F. To reset to

another setting, use a small screw driver

and turn dial clockwise to lower the

temperature or counter-clockwise to

raise the setting.

d) To replace the limit control, disconnect the wir-

ing connections.

e) Remove screws (2) holding the limit control.

f) Remove upper access panel.

g) Remove the wedge or retaining clip holding

the sensing bulb in the control well in the in/out

header.

h) Pull out the sensing bulb carefully from the

control well.

i) Remove the limit control with capillary from

unit.

PILOT

HONEYWELL PILOT ROBERTSHAW PILOT

AIR

OPENING

ORIFICE

ORIFICE

PILOT

33

Fig.# 8045.2

Fig.# 8102.1

This manual is related to the following products: