WIRING (MILLI-VOLT)
WARNING
Label all wires prior to disconnection | WARNING |
|
|
| |
when servicing controls. Wiring errors |
| Do not connect to 110 volt supply. |
can cause improper and dangerous |
|
|
operation. Verify proper operation after |
|
|
servicing. |
|
|
Pilot | THTP | |
| ||
| Valve | |
|
|
TP
TH
Switch |
|
|
|
|
|
|
Optional | Wall Switch |
|
|
| ||
or Remote Reciever |
|
|
| |||
Figure 7 - Wiring Diagram |
|
| ||||
The |
|
|
|
|
| |
WARNING |
|
|
| |||
be suitable for millivolt operation. The optional wall switch must be |
|
|
| |||
trol that does not require 110VAC to operate. Refer to Figure 8 and |
|
|
|
|
| |
installation instructions provided with optional wall switch or remote |
|
| Keep wiring away from heat | |||
control for wiring instructions. A maximum length of 15 feet of 18awg |
|
| source and hot surfaces. | |||
two conductor wire is to be used for wall switch. Note switches must |
|
|
|
|
| |
mounted outside the firebox. The remote receiver location must not |
|
|
|
|
| |
|
|
|
|
| ||
exceed a temperature of 120 F. |
|
|
|
|
|
|
|
|
|
|
| CONNECT |
|
CHECKING SYSTEM OPERATION |
|
|
|
| METER | METER |
CHECK |
|
| TO | LEADS TO | READING | |
|
|
| ||||
The | TEST |
|
| TEST | TERMINALS | SHOULD BE |
checked with a millivolt meter having a | A |
| COMPLETE | TH & THTP | Min. 100 mV | |
Conduct each check shown in chart below by connection |
| |||||
|
|
| SYSTEM |
|
| |
meter test leads to terminals as indicated. |
|
|
|
|
|
|
B |
| THERMOPILE | TP & THTP | Min. 325 mV | ||
|
| |||||
|
|
|
| OUTPUT |
|
|
A.COMPLETE MILLI-VOLT SYSTEM CHECK
("A" READING - CONTACTS CLOSED - CONTROL KNOB "ON" - MAIN BURNER SHOULD BE COME ON)
a.If the reading is more than 100 millivolts and the automatic valve still does not come on - replace the control.
b.If the closed circuit reading (“A” reading) is less than 100 millivolts, determine cause for low reading — proceed as follows:
B.THERMOPILE OUTPUT READING CHECK
(“B” READING - CONTACTS OPEN - MAIN BURNER OFF)
a.325 millivolts minimum. If the minimum millivolt reading is not obtainable, readjust pilot for maximum millivolt output. If millivolt reading is still below minimum specified, replace thermopile.
27D8520 | 9 |
