Desa Ga3750a Installation Instructions Manual Download Page 3

108319-01B

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For more information, visit www.desatech.com

10. Turn on power to duplex outlet if previously turned off per the

warning in step 1, page 2.

11. Check to make sure that the power cord is completely clear of

the blower wheel and that there are no other foreign objects in
blower wheel. Turn blower on and check for operation.

12. Peel off the backing paper and stick the supplied wiring dia-

gram decal on the firebox bottom approximately 12" in front
of the blower.

13. Replace bottom of firebox. 

Note:

 Make sure the back of the

firebox bottom slides under the rear of the firebrick (lift the
firebrick up if necessary.)

14. Reattach firebox bottom using 4 screws removed in step 1,

page 2. 

Note:

 Discard the remaining hardware items.

15. Install the log set heater according to the installation instruc-

tions supplied with the heater.

OPERATING THE BLOWER

Light your gas appliance with the blower off. After about 15
minutes, turn the blower on to deliver heated air at the top louvers.
The blower features a variable control which allows you to select the
speed you desire.

Note: 

Periodically check the louvers of the firebox and remove any

dust, dirt or other obstructions.

INSTALLING BLOWER
ACCESSORY IN A 32" FIREBOX

Continued

INSTALLING BLOWER
ACCESSORY IN 36" OR 42"
FIREBOX

NOTICE: If a log set is installed in the firebox, discon-
nect log set from gas supply and remove from firebox.
Contact a qualified service person to do this.

Note:

 Appearance of firebox may vary depending on model.

1.

If firebrick is installed, carefully lift and remove the concrete
firebrick floor from the firebox (see Figure 5). Some model
fireboxes require that you remove the side and rear panels first.
Follow the directions below to remove the side and rear fire-
brick panels for those fireboxes.
a. Using a Phillips screwdriver, remove the screw and retainer

bracket at the top of the brick liner panel on the left side. Care-
fully remove the left panel from the firebox (see Figure 6).

b. Repeat the removal steps for the brick liner panel on the

right side.

c. Remove the screw and retainer bracket at the top of the brick

liner panel at the rear of the firebox. 

IMPORTANT:

 Do not

let panel fall after bracket has bee removed. Carefully re-
move the rear panel from the firebox (see Figure 7).

d. Carefully lift and remove the concrete firebrick floor from

the firebox if installed (see Figure 5).

2.

Remove the firebox bottom.
a. Remove the 4 screws that secure the bottom of the firebox

(see Figure 8).

b. Carefully raise and remove the firebox bottom from the firebox.

 WARNING: If there is a duplex electrical outlet

installed in the right side of the bottom of the fireplace
base area, be sure that the electrical power to the outlet
is turned off before proceeding with the blower installa-
tion. Failure to do this may result in serious injury.

3.

Attach the power cord to the blower motor by firmly pushing
the two female terminals at the end of the power cord onto the
two spade terminals on the blower motor.

Figure 5 - Removing Firebrick
Floor from Firebox

Firebrick Floor

Figure 6 - Removing Left Panel
from Firebox

Left Panel

Retainer Bracket

Screw

Back
Panel

Retainer Bracket

Screw

Figure 8 - Removing Firebox
Bottom

Figure 7 - Removing Back
Panel from Firebox

Screws

INSTALLING BLOWER ACCESSORY IN A 32" FIREBOX

INSTALLING BLOWER ACCESSORY IN 36" OR 42" FIREBOX

Summary of Contents for Ga3750a

Page 1: ...r specific applications and additional instructions WARNING ELECTRICAL GROUNDING INSTRUCTIONS This appliance is equipped with a three prong grounding plug for your protection against shock hazard and should be plugged directly into a properly grounded three prong receptacle For Use With Fireboxes NL FB32C NL FB36C FB42C NL UV32C CGFB32C and CGFB36C Series Vent Free Fireplaces VSGF28 VYGF33 VTGF33 ...

Page 2: ...ground wire is tight 6 Locate the plastic hole plug installed in the 3 8 diameter open ing in the lower right side of the firebox front panel see Fig ure 2 Remove the plastic plug and discard 7 Place speed control against inner wall of front panel pushing the plastic control shaft forward through the opening see Figure 3 Figure 1 Removing Screws from Firebox Bottom 8 While supporting speed control...

Page 3: ... concrete firebrick floor from the firebox see Figure 5 Some model fireboxes require that you remove the side and rear panels first Follow the directions below to remove the side and rear fire brick panels for those fireboxes a Using a Phillips screwdriver remove the screw and retainer bracket at the top of the brick liner panel on the left side Care fully remove the left panel from the firebox se...

Page 4: ...st front panel Place control knob provided on shaft see Figure 11 10 Turn on power to duplex outlet if previously turned off per the warning in column 2 page 3 11 Plug in blower power cord a If your firebox is installed as a freestanding unit with an accessory mantel determine whether the power cord will exit the left side or the right side of the firebox Install 1 plas tic bushing provided into t...

Page 5: ...ght your gas appliance with the blower off After about 15 minutes turn the blower on to deliver heated air at the top louvers Theblowerfeaturesavariablecontrolwhichallowsyoutoselectthe speed you desire Note Periodically check the louvers of the firebox and remove any dust dirt or other obstructions INSTALLING BLOWER ACCESSORY IN MODEL SVFBC FREESTANDING STOVE NOTICE Shutoffgasheaterduringthefollow...

Page 6: ...touch the blower wheel while in operation Figure 16 Attaching Blower to Mounting Bracket Blower Mounting Bracket Screws Exhaust Port Ground Wire OPERATING THE BLOWER Lightyourgasappliancewiththebloweroff Afterabout15minutes turn theblowerontodeliverheatedairatthetoplouvers Theblowerfeatures a variable control which allows you to select the speed you desire INSTALLING BLOWER ACCESSORY IN 32 FIREPLA...

Page 7: ... an outlet is not installed in your fireplace you must install the GA3555 Outlet kit with cover in your fireplace which will sup ply a convenient 3 prong grounded electrical outlet for your blower Refertotheinstallationmanualprovidedwiththemodel GA3555 accessory for instructions on wiring the duplex outlet Note Aqualifiedinstallermustmakeallelectricalconnections CAUTION Never touch the blower whee...

Page 8: ...gas appliance with the blower off After about 15 minutes turn the blower on to deliver heated air at the top louvers Theblowerfeaturesavariablecontrolwhichallowsyoutoselectthe speed you desire Note Periodically check the louvers of the fire box and remove any dust dirt or other obstructions NOTICE Shut off gas supply and disconnect heater from gas supply Contact a qualified service person to do th...

Page 9: ...lower Assembly Green Ground Wire CAUTION Never touch the blower wheel while in operation WARNING Failure to position the parts in accor dance with supplied diagrams or failure to use only partsspecificallyapprovedwiththisheatermayresult in damage or personal injury WARNING A qualified service person must con nect fireplace to gas supply Follow all local codes INSTALLING BLOWER ACCESSORY IN FREESTA...

Page 10: ...t against the plate Place control knob provided onto shaft see Figure 25 9 Replace plate containing switches and tighten screws securely 10 Plug in blower power cord a If your fireplace system is installed as a freestanding unit with an accessory mantel determine whether the power cord will exit the left side or the right side of the firebox Install one plastic bushing provided into the 1 1 2 hole...

Page 11: ...ure to position the parts in accor dance with supplied diagrams or failure to use only partsspecificallyapprovedwiththisheatermayresult in damage or personal injury 13 Connect or reconnect gas supply following instructions given in the owner s manual supplied with your fireplace WARNING A qualified service person must con nect fireplace to gas supply Follow all local codes Figure 26 Installing Pla...

Page 12: ...n visit www desatech com For more information visit www desatech com 108319 01 REV B 09 03 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 Technical Service Department 1 866 672 6040 www desatech com 108319 01 NOT A UPC ...

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