Optional Remote Receiver; Check System Operation - Monessen Hearth PH18 Installation And Operating Instructions Manual

PH Gas Logs
CONNECT OPTIONAL REMOTE RECEIVER
Follow instructions supplied with the remote.
Connect the wires to the two .25" male connectors
located on the left side of the valve when facing the
unit (Refer to Page 18, Figure 16). Do not let wire
touch grate or burner.
NOTE: Heat reduces battery life. You can protect
the receiver and extend battery life by mounting
the receiver in a wall or other location outside the
fireplace.
Monessen • PH18/24 Installation/Owner's Manual • 65D2035 • Rev G • 03/2020
16
Check
Test To Test
A Complete
System
B Thermopile
Output
ELECTRICAL WIRING - MILLIVOLT

CHECK SYSTEM OPERATION

The millivolt system and individual components may be
checked with a millivolt meter having a 1-1000 mV range.
Conduct each check shown in chart by connecting meter
test leads to terminals as indicated.
A. COMPLETE MILLIVOLT SYSTEM CHECK
("A" Reading - On/Off Switch contacts CLOSED -
Control Knob "ON" - Main burner should come
ON)
a. If the reading is more than 175 millivolts and the
automatic valve still does not come on, replace the
control.
b. If the closed circuit reading ("A" reading) is less than
175 millivolts, determine cause for low reading, pro-
ceed to Section B below.
B. Thermopile Output Reading Check
("B" Reading - On/Off Switch contacts OPEN -
Main burner OFF)
1. Check gas pressure to the unit. If gas pressure
is within minimum and maximum on data plate,
then check pilot voltage, 500 millivolts minimum.
If the minimum millivolt reading is not obtainable,
replace pilot.
Connect Switch or
Meter Leads Thermostat
To Terminals Contacts
2 & 3 Closed
1 & 2 Open
Meter
Reading
Should Be
Minimum 175mV
Minimum 500mV