Carrier ETN Installation Instructions Manual page 9

NON-PROGRAMMABLE THERMOSTAT
MODELS « 50PZ / 38PZ + 40PZ 031-075 »
THERMOSTAT TERMINALS
Y 1 G Y 2 S S W 2 E
Y 1 G Y 2 1 7
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models)
MICROS BLOCK S1
1-3-4-5-6
Micro No. 2 Micro No.
O F F
Position O N Position
IMPORTANT:
E W 1 O C R
To check if the Unit has a
jumper befween «R & 16»
or «R & 17».
If yes, this jumper must be
removed before doing new
thermostat connections.
1 6 W 1 O C R
MICROS BLOCK S2
2
1-3-4-5-6
O F F
O N
REF.- ETN.12
10-06-05
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The micro-switches are factory configured by default in the following position:
BLOCK S1
Micro No. Position
2 O N
1, 3, 4, 5, 6 OFF
5.3 Atmospheric or remote return sensor connection (optional)
NTC Sensor: Temperature~Resistance Features
Temp ºC 7.2 10.0 12.8 15.6
Resist. k 115.8 100.9 88.1 77.1
Factory configuration includes an internal sensor.
·
Disconnect the 24 vac power supply to the thermostat.
·
Set micro-switches 1, 2, 3 on block S2 as required.
·
Connect the temperature sensor to terminals S and S.
·
Reconnect the 24 vac. power supply.
·
Use shielded-type wiring to connect the sensor.
BLOCK S2
Micro No. Position
1, 3, 6 O N
2, 4, 5 OFF
18.3 21.1 23.9 26.7 29.4 32.2
67.7 59.6 52.5 46.4 41.2 36.6
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