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WIRING DIAGRAM
120V/240V TEMPZONE, ENVIRON, LAVA PANELS
TO RC840T-120/240 RELAY AND SAVANT THERMOSTAT
POWER INDICATOR LIGHT
(ILLUMINATES WHEN CALLING FOR HEAT)
SAVANT THERMOSTAT (SST-W100)
BACK COVER
RC840T-120
RC840T-240
22A
RELAY /
TRANSFORMER
C
W
R
BLACK
LOCK NUT
BLUE (240V) OR
WHITE (120V)
RED
BLACK
GROUND
HEATING
PRODUCT
CONDUCTORS
RED (240V) OR
YELLOW (120V)
HOT
L1
HOT L2 (240V) or
NEUTRAL (120V)
24RC
G
Y1
Y2
RS2
RS2
RSC
A1
24C
24RH
W1
W2/O
RS1
RS1
RSC
A2
JUNCTION BOX
HOUSE
GROUND
HEATING
ELEMENT
FROM GFCI PROTECTED
CIRCUIT 120V & 240V
RC
RC840T
22 840T-120
A -2
40
RE
ENSURE THE SYSTEM IS GROUNDED
LA
Y
C
W
R
1. INPUT VOLTAGE TO THE RELAY, VOLTAGE OF THE
RELAY ITSELF AND THE VOLTAGE OF THE MAT SHOULD
BE ALWAYS THE SAME.
2. IF MULTIPLE MATS ARE USED, IT MAY BE EASIER TO RUN
THE COLD LEADS TO A JUNCTION BOX FIRST, AND THEN
CONNECT THE JUNCTION BOX TO THE RELAY.
3. RELAY IS RATED FOR 22 AMPS MAX. 30 AMP MAX BREAKER
WITH 5mA GFCI IS REQUIRED.
4. USE A 22-18 AWG SIZE SOLID COPPER WIRE
BETWEEN RELAY AND THERMOSTAT BASE. THE EXPOSED
WIRE SHOULD BE 3/8” AND STRAIGHT.
5. LOCAL ELECTRICAL CODE MAY REQUIRE THE USE OF
E.N.T. TUBING TO PROTECT ANY LOW VOLTAGE WIRES
IN THE SAME JUNCTION BOX AS HIGH VOLTAGE WIRES.
6. TWO FLOOR SENSOR CAN BE CONNECTED TO READ
AN AVERAGE TEMPERATURE OF THE FLOOR.
- THE RC840T MUST BE INSTALLED IN AN AREA WHERE THE TEMPERATURE IS BETWEEN -4°F AND 140°F
- THE RC840T CAN BE INSTALLED ON THE SIDE OF AN ELECTRICAL BOX OR A DISTRIBUTION PANEL.
- ALL WIRING MUST COMPLY WITH NATIONAL AND LOCAL ELECTRICAL CODE REGULATIONS.
- INSTALLATION SHOULD BE CARRIED OUT BY AN ELECTRICIAN.
- DISCONNECT POWER SUPPLY BEFORE INSTALLING THE RELAY TO PREVENT ELECTRICAL SHOCK.
- SECURE RELAY TO THE MOUNTING SURFACE USING THE TWO MOUNTING BRACKETS. USE THE SUPPLIED
LOCK NUT TO SECURE THE RELAY TO THE JUNCTION BOX.
- WIRE THE RELAY AND CONNECT ACCORDING TO TYPICAL WIRING DIAGRAMS. ONCE MOUNTING AND
WIRING HAVE BEEN COMPLETED, RETURN POWER TO THE HEATING SYSTEM AND TEST THE INSTALLATION.
- INCREASE THE THERMOSTAT TEMPERATURE TO ACTIVATE THE RELAY. ALLOW SYSTEM OPERATION LONG
ENOUGH TO CONFIRM CORRECT INSTALLATION. ONCE INSTALLATION HAS BEEN CONFIRMED,
SET TEMPERATURE TO NORMAL SETPOINT.
FLOOR
SENSOR WIRES
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