21
Blower Removal
Unplug the power supply cord from the electrical outlet prior to remov-
ing the blower. The blower can be accessed through the back wall of the
firebox.
CAUTION: Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous operation.
Verify proper operation after servicing. See the blower-wiring diagram
below for reference. Remove the glass door, log set and brick panels.
All of these items are fragile so handle them with care. Remove the two
allen-head screws at the left and right front of the air control panel and
lift the panel out. Next, remove the nine allen-head screws around the
outside of the panel fastened to the back wall of the firebox. Rotate the
top of this panel toward the front, remove the two wires connected to the
blower and then lift the panel with the blower attached out of the firebox.
To reinstall the blower, repeat these steps in the reverse order.
Electrical Requirements
This gas insert operates without an outside power source, however the
blower requires a 120 Volt electrical service outlet. The blower must be
electrically grounded in accordance with local codes. In the absence of
local grounding codes, the National Electrical Code ANSI/ NFPA 70 - lat-
est edition. In Canada, the current CSA C22-1 Canadian Electrical Code
- latest edition. The blower is equipped with a three pronged (grounding)
plug for your protection against electrical shock hazard and should only
be plugged into a properly grounded three prong receptacle.
DO NOT
CUT OR REMOVE THE GROUNDING PRONG FROM THE PLUG
FOR ANY REASON!
• See Millivolt Control Schematic (Figure 19) for information
on thermostat and On/ Off switch.
• See Blower Wiring Diagram (Figure 21) for information on
the wiring and electrical requirements for the blower.
CAUTION: Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and dangerous
operation.
ATTENTION: Au moment de l'entretien des commandes,
étiquetez tous les fils avant de les débrancher. Des erreurs
de cáblage peuvent entraîner un fonctionnement inadéquat et
dangereux.
Figure 21
Snap Switch Connection
Wire (Black)
Pan Snap Switch
Snap Switch
Connection
Wire (White)
Speed Control Connection
Speed control Connection Wire (Black)
Blower
Main Power Cord (Black)
Main Power Cord Wire (White)
Main Power Cord Wire (Black)
Ground Wire (Green)
Speed Control ConnectionWire (White)
Speed Control Connection Wire (Black)
Speed Control
Connection Wire
(White)
Speed Control
Wire (Red)
Fan Speed Control
Speed Control
Wire (Red)
Fuel Conversion and Cassette Installation
Converting your FireStar™ gas insert between natural gas and LP can be
accomplished by either changing the Quick Change Cassette (valve and
pilot assembly) or installing a conversion kit (regulator, burner orifice
and pilot orifice). Only a qualified service technician should perform the
conversion, as it requires disconnecting the gas supply line and other
procedures that should only be performed by a qualified technician.
Cassette Removal
1. Be sure the gas supply is off and blower power cord is disconnected
before beginning the conversion. Disconnect the gas supply from
the insert being careful not to apply pressure to the valve in the
process.
2. Remove the log set and brick panels, (see “Brick Panel and Log
Installation)
3. Remove the burner by lifting the left end and pulling the burner
gently through the block plate and past the pilot assembly.
4. Disconnect at the valve the two wire connectors from vent safety
snap switch (the uppermost black wire on terminal 1 and the black
wire with the round connector located at the top of the valve and
behind the gas inlet elbow). Then disconnect the thermostat (red
and white wires) and rocker switch (black wires) at terminals #1
and 3.
5. Remove the socket head screw attaching the cassette/body block
plate and block plate located in the bottom right end of the fire-
box.
6. Remove the socket head screw fastening the pilot end of the cassette
to the burner holder.
7. Remove the three socket head screws holding the cassette (valve/
pilot assembly) to the body of the insert.
8. The cassette can now be removed by rotating the valve forward and
out to the right.
9. Install new, converted or serviced cassette in the reverse order of
removal. All parts and wires must be correctly reinstalled to ensure
safe and proper operation of the unit.
Conversion Kit
Please see instructions provided with conversion kit.
Blower Wiring Diagram
Summary of Contents for FIRESTAR MERIT GC3
Page 27: ...27 NOTES...
