Wiring examples – tekmar 511 Programmable Thermostat Installation User Manual
Page 9
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© 2012
D 510 - 02/12
STEP FOUR
WIRING THE THERMOSTAT 24 V (ac) Power
(Refer to the examples on the following pages.)
24 V (ac) power
Connect the 24 V (ac) power to the R and C terminals (1 and 2) of the thermostat. This
connection provides power to the microprocessor and display of the thermostat.
Auxiliary Sensors (S1 and S2)
Either an indoor, slab, or remote sensor may be connected to the S1 input. Connect the
two wires from the auxiliary sensor to the Com and S1 terminals (3 and 4).
Either an indoor, slab, or outdoor sensor may be connected to the S2 input. Connect the
two wires from the auxiliary sensor to the Com and S2 terminals (3 and 5).
Heat Relay
The Heat terminals (6 and 7) are an isolated output. There is no power available on
these terminals from the thermostat. These terminals are to be used as a switch for a
24 V (ac) circuit. This circuit can operate a low current 24 V (ac) device directly or an
external relay to enable a line voltage or high current device.
STEP FIVE
INSTALLING THE FRONT COVER
Pivot front
cover around
bottom hinges
Align hinges
on bottom
of front cover
1
2
Menu
Item
Wiring Examples
WIRING 24 V (AC) POWER AND AUXILIARY SENSORS
Align the hinges on the bottom of the front cover
with the bottom of the thermostat mounting
base. Pivot the front cover around the bottom
hinges and push the top against the mounting
base until it snaps firmly in place.
Switc
h Se
ttings:
Ins
taller/User
Po
w
er
:
24
V
± 1
0%
60
Hz 3 V
A
Re
lay
: 24
V (
ac)
2
A
Class 2
938-
01
51
0
Made
in Canada
Mee
ts C
lass
B:
Canad
ian ICES
FCC
Pa
rt
15
120 V (ac)
24 V (ac)
Sensor Wires
Auxiliary Sensor (Optional)