Installation
900683-01F, 10/2018
Innovative Hearth Products
DRT3500 Series Direct-Vent Gas Fireplaces
38
Figure 29 - Wiring Diagrams—Electronic Gas Valves
Burner 2
Pilot
Thermocouple Ground -
Connector to Chassis
Ground or Valve Body
(Not Polarity
Sensitive)
VCS-ECOEXTMOD
(Extension Module)
VCS-ECOMODPVI (Main Module)
On/Off (Brown)
Optional: Hi/Lo (Blue)
Optional: IPI/Cont. Pilot (Yellow)
Learn (Black) (Some Models)
Valve
Safety Operator
Optional
Fixed
Outlet
(Some Models)
MOTOR
COMM
120 V
AC
120 V
AC
POWER
AUX
LIGHTS
WHITE
RED
WHITE
BLACK
GRA
Y
BLACK
MOTOR
FAN
G
COMM
SWITCHES
Power Vent Models Only
(Green)
Draft Call
Input
BA
TT
.
V
S
I
(White)
PV Call
Proof Out:
Norm. Open
Draft SW
Dry Contact Only!
Variable Main Outlet
Pilot Outlet
Thermocouple - To “S”
Terminal on Main Module
Main Burner
Battery
Pack
(Primary or
Backup)
Dry -
Contact
Switches
7.5VDC
1-Amp
Switching
Adaptor
“–”
“+”
To Pilot
Igniter
From Pilot
Thermocouple
Regulator
Inlet
Gas Valve
Valve
Step
Motor
Valve
Step
Motor
Variable Outlet
Block V
alve
(Optional)
Inlet
Some Models
GREEN
BLOWER
120 V Power
Supply
Black
Red
Ecoflow Electronic
Gas Valve
