Roof Deicing
Roof Deicing Q.I.G.
leaders in engineered heat trace
1
2
3
Wired to Enclosed
Contactor Panel
DTC120-G is designed to detect snow
or ice, and automatically activates
contactors/relays for roof, gutter and
downspout deicing cable(s).
DTC120-G INCLUDES:
DTC Control Panel1.
GS Gutter Sensor (up to 4)2.
OTS-F1 Ambient Thermostat3.
OPTIONAL ITEMS:
RID (Remote Indicator and4.
Activation Timer)
Enclosed Contactor Panel5.
WARNING: This device must be installed by a qualified electrician. All assembly, installation, and test instructions must be followed. Improper
installation can result in property damage, serious injury, and/or death due to electric shock. Call Delta-Therm at 1-800-526-7887 with any
installation or operating questions.
Finished
Install
NOTE: The National Electri-
cal Code (NEC) requires
30mA Ground Fault Protec-
tion Equipment (GFPE) on
this system. Check with all
local codes prior to instal-
lation.
4 (Optional)
RG
OTS-F1
TIMER ON
SYSTEM ON
RESET
TIMER
DELTA-THERM
START
125
4
36
14
3
25
TBTBTATA
RID
OTS-F1
Outdoor
Temperature
Probe
Neutral (TA2)
Switchleg, (TA4)
Line (TA1)
Black
Red
White
Green
C_DTC_G_Contactor_1009_QIG
GS
OTS-F1
125
4
36
14
3
25
TBTBTATA
Black
Neutral TA2, Neutral
Switchleg, TA4
Line, TA1
OTS-F1 Outdoor
Temperature
Probe
Jumper
TA1 -TA3
(Field
Installed)
Red
White
Green
5 (Optional)
DTC120-G
5
Wiring DTC120-G
to Enclosed
Contactor Panel
6
Installing and
Wiring RID
Power
Relay
Panel
RID OTS-F1
Heating Cable Line In
3-wire
Switched
120 V
120 V Control Line Vo ltage
From Power Distribution Panel
2-wire
4-wire
Low Voltage Wiring from DTC
DTC-120
Outdoor
Temperature
Probe
Power
Distribution
Panel
Heating Cable Load In
GS
Contactor
Panel
1
2
3
4Optional
Power Control
Panel With
GFPE
5 Optional
Quick Install Guide
DTC120-G to Contactor Panel
DELTA-THERM Corp., 6711 Sands Rd Ste A Crystal Lake, IL 60014 (800) 526-7887
