Desa GA3400T User manual

WARNING: Fan accessory must be grounded.
Fan comes with a three-prong, grounding plug as
showninFigure1.Theplugisyourprotectionagainst
electrical shock. Plug it into a standard, three-hole,
grounded, outlet. If cord needs replacing, use only a
cord with a three-prong, grounding plug.
GA3400T / GA3450T
Thermostat Blower Accessory
If any of these pieces are missing or damaged, contact the dealer
where you purchased this kit or DESA International at 1-800-972-
7879 for referral information.
Grounding Plug
Figure 1 - Grounding Plug
Grounded Outlet
NOTICE: Cord length from switch plate assembly to
plug is six feet. Make sure grounded outlet is an
appropriate distance from unit.
Hardware kit contains
2 Plastic snap bushings
6 #10 screws
1 Plug button
For use on Fireplace models VMH26 Series, VMH10 Series, CGCF Series, CF26 Series, and FMH26 Series.
See the owner’s manual supplied with your Fireplace for specific installation instructions.
WARNING: Failure to connect all wires as indi-
cated may cause electrical shock or personal injury.
Carton Contents
Description Part Number
Bracket 103966-01
Thermodisc 103972-01
Blower 103283-01
Wire Harness 103968-01
Power Cord 104015-01
AUTO/OFF/ON switch 099998-01
Mounting Hardware kit 098418-08
DESA INTERNATIONAL
REMOVING UPPER LOUVER ASSEMBLY
(For all models except CF26 Series)
To install the blower accessory, you must first remove the upper
louver assembly, hood, and branch support.
1. Lift screen off heater and remove log set.
2. If you have extruded louvers, remove 4 screws from louver
assembly (see Figure 2). If you have sheet metal louver, re-
move 2 screws from louver assembly and 4 screws from hood
(if installed) (see Figure 3). Save these screws.
3. Pull louver assembly straight out from the cabinet. Be careful not
to scratch the paint. Set louver assembly, hood and screws aside.
4. Remove 2 screws from each side of branch support and pull
branch support out (see Figure 2).
Upper Louver
Assembly
Blower Bracket
Mounting Holes
Figure 3 - Removing Hood and Upper Sheet Metal Louver
Assembly
Hood
Continued
Figure 2 - Removing Upper Extruded Louver Assembly and
Branch Support
Blower Bracket Mounting Holes
Upper Louver
Assembly
Branch Support

2
103967
Installing Blower Assembly
Note: If you are using a mantel with your heater, use the following
instructions. If your heater is built-in, see For Built-In Installation
on page 3.
1. Install snap bushings found in hardware kit into both holes
in rear of valve cover shield.
2. Make sure the wire harness is firmly connected to the termi-
nals on the blower bracket assembly.
3. Note the wire locations on back of AUTO/OFF/ON switch.
The terminals on back of switch are numbered 1, 2, and 3.
Carefully remove red wire from terminal 3 and blue wire from
terminal 1. Black wire can remain on middle terminal 2 (see
Figure 4).
4. Carefully disconnect green and white wires at their insulated
connectors.
5. In top of the heater cabinet, locate the four mounting holes on the
outercasing.Alignthesefourholeswiththoseontheblowerbracket
assembly.Attachblowerbracketassemblytotheouter casingwith
4 #10 screws provided (see Figure 4).
6. Route the wire harness through the hole in left side of baffle.
Pull wire harness through lower opening on the side of the
valve shield. (see Figure 4).
7. Insert the 4 wire harness into one of the round holes in the rear
of the valve cover shield and through the rectangular hole in
the front of shield (see Figure 4).
8. Reconnect red wire to switch position 3. Reconnect blue wire to
switch position 1. Reconnect green and white wires.
9. Install the switch plate on the valve cover shield with 2 #10
screws provided (see Figure 5). Route power cord out of the
cabinet by inserting it through the bushing on the outer casing
(see Figure 4). Plug fan kit into 120-Volt grounded power sup-
ply and test operation. Note: When switch is in the AUTO
position, the fan will start after the heater has run for a few
moments. The fan will continue to run for several moments
after the heater has been turned off. When switch is in the ON
position, the fan will run until turned to OFF.
10. Reinstall upper louver assembly (see Figure 2 or 3, page 1)
and branch support. Close lower louver door.
11. Carefully reinstall log set per instructions in your fireplace
owner’s manual. Reinstall screen before relighting fireplace.
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation.
CAUTION:Verifyproperoperationafterservicing.
Figure 4 - Installing Blower Bracket Assembly
Valve Cover
Shield
Switch Plate Screw
Figure 5 - Installing Switch Plate to Valve Cover Shield
3
2
1
Wire Harness
Blower Bracket
Assembly
Power
Cord
Wire
Harness
Switch
Baffle
Wiring Routing
Hole in Baffle
Switch
Plate
BlueRed
Valve Cover
Shield
Snap
Bushing
Screw

103967
3
Continued
1. Install a snap bushing found in hardware kit into
oneof the holes found rear of valvecovershield.
The other hole is for a strain relief clamp (not
supplied) to secure incoming electrical supply.
2. Follow steps 2 through 6 in Installing Blower
Assembly, page 2.
3. A licensed electrician must follow the wiring dia-
gram to connect incoming electrical supply to fan
kit wiring harness.
4. Plug power cord to the outlet receptacle (not
provided) as shown in Figure 6. Wind the extra
cable in power cord and tie it up with the plastic
wire strap (see Figure 6). Set the cable bundle
between the burner bracket and outer casing,
away from the burner.
5. Test to make sure the blower is working properly.
6. Reinstall upper louver assembly (see Figure 2
or 3, page 1) and close lower louver.
7. Carefully reinstall log set per instructions in your
fireplace owner’s manual. Reinstall screen be-
fore relighting fireplace.
Figure 6 - Installing Blower Bracket Assembly
For Built-In Installation
WARNING: A licensed electrician
mustconnectthewiringharnesstoelec-
trical supply following all local codes.
Electrician must provide a clamp on the
box cover to secure the wiring. Wiring
shouldbe routedthroughthe bushingin
the hole on the outer casing of heater.
Blower Bracket
Assembly
Screw Wire
Harness
Power
Cord
Plastic
Wire
Strap
Wire
Harness
Switch
Plate
Switch
Clamp Connector
(not included)
Blue Red
Outlet
Receptacle
(Not Supplied)
EXTENSION CORD
Use extension cord if needed. The cord must have a
three-prong, grounding plug and a three-hole recep-
tacle. Make sure cord is in good shape. It must be
heavyenoughtocarrythecurrentneeded.Anunder-
sized cord will cause a drop in line voltage. This will
resultinlossofpowerandoverheating.UseaNo.16
AWG cord for lengths less than 50 feet.
Note: Verify proper operation after servicing.
Figure 7 - Wiring Diagram For Fan Accessory Standard Installation
If any of the original wire as supplied with the appliance must be replaced, original
replacements must be used. DESA part no. 104015-01 (105°C) for power cord, and
DESA part no. 103968-01 (200°C) for wire harness.
101584-06
120 Vac. 60 Hz. .30 Amps
DESA International, Bowling Green, KY
Red Red
Fan Switch
(Auto/Off/On)
Blue
Blue
Thermostat
Switch
(N.O.)
Green
White Green
White
On
110/115
V.A.C. Blower
Motor
Black
Off 1
23
Auto
WARNING: Never attempt to service heater while it is plugged in,
operating, or hot. Burns and electrical shock could result. Only a
qualified service person should service or repair heater.
WARNING: Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous opera-
tion. Verify proper operation after servicing.
WARNING:
Electrical Grounding Instructions:
This appliance is equipped with a three-
prong (grounding) plug for your protec-
tionagainstshockhazardandshouldbe
pluggeddirectlyintoaproperlygrounded
three-prong receptacle.

103967-01
Rev. C
04/00
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
Technical Service Department 1-800-323-5190
Parts Department 1-800-972-7879
www.desatech.com
INTERNATIONAL
OFF
ON
OPERATING FAN
Thisblower has three settings: ON, OFF, andAUTO.IntheON
position,theblowerwilloperateconstantly.IntheOFFposition,
the blower will not operate. In the AUTO position, the blower
will start when the thermostat senses a sufficient increase in
firebox temperature.
Note: Your fireplace andthermostatblowerwill notturnonand
off at the same time. The fireplace may run for several minutes
beforetheblowerturnson.Aftertheheatermodulatestothepilot
position,theblowerwillcontinuetorun.Theblowerwillshutoff
after the firebox temperature decreases.
Note: It is safe to operate fireplace with blower turned off.
However, the blower helps distribute heated air from the fire-
place.
Figure 8 - Auto/Off/On Switch
Auto/Off/On Switch
103967 01
NOT A UPC