.Blower Wiring Diagram

18

FIREPLACE INSTALLATION

Installing Optional Blower Accessory (Cont.) Installing Gas Piping to Fireplace Location

FIREPLACE INSTALLATION

Continued

3.Place the blower against the lower rear wall of the firebox outer wrapper with the exhaust port directed upward and the thermodisc positioned up near the fireplace bottom. The thermodisc must be oriented near the fireplace bottom as shown in Figure 28, page 17, in order to sense temperature and properly operate. The blower will be held in position against the back wall by the magnets incorporated onto the blower housing (see Figure 28, page 17).

4.Be certain that all wire terminals are securely attached to ter- minals on blower motor and thermal switch, and that the screw for the thermodisc bracket and green ground wire is tight.

5.Mount the speed control box against the mounting plate pro- vided in the lower fireplace cavity by placing the plastic control shaft forward through the round hole (see Figure 26, page 17).

6.While supporting speed control, secure control shaft with lock nut by pushing and turning lock nut with pliers clockwise un- til it is tight against mounting plate. Place control knob pro- vided on shaft (see Figure 26, page 17).

7.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. Also double check all wire leads and make sure wire rout- ing is not pinched or in a precarious position. Correct accordingly.

8.Turn on power to duplex outlet if previously turned off per the warning in column 2, page 16.

9.Plug in blower power cord to duplex outlet.

10.The blower will only run when the speed control knob is in the ON position and the thermal switch senses temperature after the fireplace begins to heat up. The blower speed can be adjusted by rotating the control knob. To turn off, turn knob fully counter- clockwise until it clicks off. If the blower is ON and has been running with the fireplace operating, the blower will continue to run for a short time after the fireplace has been turned off. As the thermal switch cools down, the blower shuts down automatically.

11.Peel off the backing paper and stick the supplied wiring dia- gram decal on the firebox bottom approximately 12" in front of the blower (see Figure 27, page 17).

.Blower Wiring Diagram

INSTALLING GAS PIPING TO FIREPLACE LOCATION CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

 

 

Variable

Fan Switch

 

 

Fan Switch

 

 

 

 

(N.O.)

 

 

Off 1

2

Black

110/115

On

 

Blue

 

 

 

V.A.C.

 

 

 

 

 

Black

 

Blower

 

 

 

 

 

 

White

 

Motor

Green

Figure29-BlowerWiringDiagramforThermostat-ControlledModels

INSTALLING GAS PIPING TO FIREPLACE LOCATION

Manual background WARNING: A qualified service person must con- nect fireplace to gas supply. Follow all local codes.

Manual background CAUTION: For propane/LP units, never connect fireplace directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the external regulator between the fireplace and propane/LP supply.

Installation Items Needed

Before installing fireplace, make sure you have the items listed below.

external regulator (supplied by installer)

piping (check local codes)

sealant (resistant to propane/LP gas)

equipment shutoff valve *

test gauge connection *

sediment trap

tee joint

pipe wrench

approved flexible gas line with gas connector (if allowed by lo- cal codes)

*A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the CSA design-certified equipment shutoff valve from your retailer.

For propane/LP connection only, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, fireplace regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 31, page 19. Pointing the vent down protects it from freezing rain or sleet.

External

Propane/LP

Regulator

Supply Tank

Vent

Pointing

Down

Figure 30 - External Regulator with Vent Pointing Down (Propane/LP Only)

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111924-01A

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Desa K36EP, K36EN Fireplace Installation, Continued, Installing Gas Piping To Fireplace Location, Blower Wiring Diagram