INSTALLATION

Continued

6.Connect one bare wire end to each terminal (“W” and “R”) of the thermostat base (see Figure 34).

7.Install the base onto the wall with the pro- vided screws.

8.Move the temperature adjustment back and forth to insure the bimetal is free from restrictions.

9.Replace the cover onto the base. (Upon in- stallation, the thermostat must be allowed to stabilize at room temperature for a minimum of 30 minutes for proper operation).

10.Set switch on fireplace to Auto position.

11.Set the temperature adjustment to the desired setting. This thermostat has been electroni- cally calibrated at the factory. No adjustment or leveling is necessary.

Feed wires through rectangular slots

Figure 33 - Back View of Thermostat

Base

Terminal “W”

W

Terminal “R” R

Figure 34 - Thermostat Base Terminals

“W” and “R”

OPTIONAL WALL SWITCH - GWMS2

WARNING: Read and follow installation instructions. Instal- lation should be done by a quali- fied installer familiar with low- voltage wiring procedures.

WARNING: Do not connect this switch to any electrical source! Electrical shock and/or fire hazard will occur.

1.Connect one terminal of 25 ft. wire to bottom contact of switch (see Figure 32, page 20).

2.Connect remaining wire terminal to the “TH” terminal on the control valve. Make sure that wire terminals are in the positions on your unit as pictured in Figure 32, page 20. If wires are not “crossed” the thermostat will not work.

3.Route the 25 ft. wire to a convenient location to mount your wall switch (no outside walls).

WARNING: Do not connect the switch to a power source. Electrical shock and/or fire haz- ard will occur.

IMPORTANT: The wire may be shortened but must not be lengthened.

4.Connect one bare wire end to each of the ter- minals of the provided wall switch.

5.Install the wall switch and cover in the wall.

INSTALLING LOG SET AND SCREEN

1.Remove log packaging material and discard packaging. Gently place log on burner sup- port (see Figure 35). The log should fit flat against top of burner support and log locator tabs fit into the slots under the log. Do not allow log to contact flame. If flame contacts log, soot will be created.

2.Reattach screen by placing the notches in the screen frame over the shoulder screws and pushing down.

Shoulder

Screw

Log

Screen

Burner Support with Log Locator Tabs

Figure 35 - Installing Log and Screen

113110-01A

www.desatech.com

21

Page 21
Image 21
Desa EFS26PRA, EFS26NRA, VMH26PRB, VMH26NRB installation manual Optional Wall Switch GWMS2, Installing LOG SET and Screen