Carrier ETN Installation Instructions Manual page 12

6.3 Unit operating mode selection
Press the Mode button to choose the operating mode:
º C 1.- When pressed once, Heat will appear on screen (Heat Mode)
2 3
2.- When pressed twice, Cool / Heat will appear on screen (Auto Mode)
O N 3.- When pressed 3 times, Fan will appear on screen (Fan Mode)
H e a t
4.- When pressed 4 times, Cool will appear on screen (Cool Mode)
Auto Fan
The operating mode will flash on the thermostat screen. While
On / Off M o d e F a n
the thermostat is timed, the operating mode will be
permanently displayed.
6.3.1 Emergency heating, can only be selected on Heat
pump units.
º C
2 3
This is enabled by pressing the Mode button for 5 seconds.
To cancel emergency heating and return to heat pump mode,
O N
H e a t
press the Mode button for 5 seconds.
A u x
Auto Fan
On / Off M o d e F a n
6.4 Fan/Auto Fan operating.
Press the Fan button to change the Fan/Auto Fan operating
º C
2 3
mode.
In Auto Fan mode the fan will only operate when there is a
C o o l
O N
demand for heat or cold, i.e. when the unit compressors and
Fan
fans are working.
On / Off M o d e F a n
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NON-PROGRAMMABLE THERMOSTAT
MODELS « 50VZ / 38VZ + 40PZ 015-030 »
«50TZ / 38FZ + 40BZ / TZ 024-084»
THERMOSTAT TERMINALS
Y 1 G Y 2 S S W 2 E
Y 1 G 1 7
UNIT ELECTRICAL BOX TERMINALS
(Cooling only 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 C R
*
( ).- Set Micro no 5 on
Block S2 to ON when the
Unit starts up the Hot Water
Coil.
MICROS BLOCK S2 (*)
2 - 4 - 5
1 - 3 - 6
O F F
O N
REF.- ETN.09
10-06-05
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