RG CTH3-150 - Manual (Page 45)

SECTION 10: W IRING
39 of 71
SECTION 10: WIRING Heater must be grounded in accordance with
applicable codes: United States: refer to National
Electrical Code ® NFPA 70 - latest revision
Canada: refer to Canadian Electrical Code, CSA
C22.1 Part I - latest revision.
If any of the original internal wiring must be replaced,
it must be replaced with wiring materials having a
temperature rating of at least 105°C and 600 Volts.
10.1 Standard Heater Configuration
From the factory, the heater is configured for zone
sensor control. Connect zone sensor to the heater
control as shown
on Page 39, Figure 22.
If additional heaters are in the same heating zone,
control wiring must be installed between the heaters’
controls as shown
on Page 39, Figure 22.
For additional details or for use with heat demand
control devices other than the zone sensor,
see Page
40, Section 10.2 through Page 48, Section 10.4.9.
FIGURE 22: Zone Sensor Wiring Diagram
DANGER
Electrical Shock Hazard
Disconnect electric before service.
Heater must be properly grounded.
Failure to follow these instructions can result
in death or electrical shock.
MODULATION CONTROL WIRING
TO SATELLITE HEATERS
CENTRAL HEATER CONTROL
OFF
ON
-LCD+ +FAN- SEN
ZONE SENSOR
SET
J10
W
R
-
+
-
+
-
+
OUT RA
TE
FIRING
IN
RA
TE FIRING
EXT
. POT
GND
WIPER
HIGH
GND
BAR SLIDE
GND
THERMISTOR
INPUT ANALOG
THERMOSTAT
T31
T29
T19
T18
T16
T14
T27
T25
T30
T28
T17
T15
T13
T26
T24
MODULATION CONTROL WIRING
TO ADDITIONAL SATELLITE
HEATERS CONTROL TERMINALS
T28 and T29.
*OPTIONAL
SWITCH
SATELLITE HEATER CONTROL
J10
W
R
-
+
-
+
-
+
OUT RA
TE
FIRING
IN
RA
TE
FIRING
EXT
. POT
GND
WIPER
HIGH
GND
BAR SLIDE
GND
THERMISTOR
INPUT ANALOG
THERMOSTAT
T31
T29
T19
T18
T16
T14
T27
T25
T30
T28
T17
T15
T13
T26
T24
A B
A B
* Separate on/off switch is optional for
"satellite" heaters (install at user level). On/
Off switch is used to disable heater operation
or reset a heater that is in "lockout" mode. If
on/off switch is not desired, leave jumper wire
between R and W terminals in place.
Description Part Number
Zone Sensor, 40° - 75° 10081530