OWNER’S MANUAL
INSTALLATION
Continued
6.Connect one bare wire end to each ter- minal (“W” and “R”) of the thermostat base (see Figure 35).
7.Install the base onto the wall with the provided 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 installation, the thermostat must be al- lowed to stabilize at room temperature for a minimum of 30 minutes for proper operation).
10.Set switch on heater to Auto position.
11.Set the temperature adjustment to the desired setting. This thermostat has been electronically calibrated at the factory. No adjustment or leveling is necessary.
Terminal “W”
W
Terminal “R”
R
Figure 35 - 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 33). |
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 33. 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 |
Switch on Gas | Control |
Heater | Valve |
AUTO |
|
OFF |
|
ON | To Wall |
One | |
terminal of | Thermostat |
25 ft. wire | or Switch |
Figure 33 - Connecting Wire Terminals
Feed wires through rectangular slots
To Wall Thermostat or Switch
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 terminals of the provided wall switch.
5.Install the wall switch and cover in the wall.
Figure 34 - Back View of Thermostat Base
107034 | 17 | For more information, visit www.desatech.com |
