Carrier ETN User manual

Installation instructions
Electrical Handling and Connecting
NON-PROGRAMMABLE
THERMOSTAT
« ETN »
Code XK01J010N
Order no.: AM036948 - October-05. Replacing order no.: New
Themanufacturerreservestherighttomakeanymodificationswithoutpriornotice.
22
22
2
99
99
9
Cool OFF
Auto Fan
C
o

RemoteNTCatmosphericprobe
NTC duct probe
- 2 - - 35 -
A.- Separe the front panel from the rear by pressing down
on the tab on top of the thermostat.
Please read this manual carefully before installaton and use
2 .- Installation instructions
1.- General features and Accessories.
2.- Installation instructions.
3.- Sizes.
4.- Electrical conections.
5.- Micro switches.
6.- Operating manual.
7.- Technical Adjustments.
8.- WiringDiagrams.
CONTENTS
Temperaturerange
Marking
Inflammability
Inlettemperature
Weight
1.- General Features
from10ºCto35ºC
CE
UL94V-0
Sonda50K a 25ºC
0.125Kg
(*) .- See availability
50K
50K
1.- Accesories (*)
FREEVOLTAGECONTACT UNITS
AND ELECTRICAL HEATERS
FREEVOLTAGECONTACT UNITS
K1
K2
K3
K4
K5
K6
B4
PL
B3
PL
B2
PL
B1
PL
PA1/PA2
B1 B2
EE
101
THERMOSTAT
TERMINALS
102
K1
K2
K3
K4
K5
K6
B4
PL
B3
PL
B2
PL
B1
PL
PA1/PA2
B1 B2
EE
101
THERMOSTAT
TERMINALS
102
ALARMS: INTERCONNECTION BETWEEN THE THERMOSTAT AND THE UNITS WITH MASTER LINK-I
ONLY VALIDFORWIRING DIAGRAMS: REF.-ETN01-02-03-04-05-06-07-08-13-14-15AND 16

- 34 -
UNITSWITHOUTELECTRICAL HEATERS
ALARMS: INTERCONNECTION BETWEEN THE THERMOSTAT AND THE UNITS WITH MASTER LINK-I
ONLY VALIDFORWIRING DIAGRAMS: REF.-ETN01-02-03-04-05-06-07-08-13-14-15AND 16
PA1 / PA2 Expansion Board required for
interconnection.
K1
K2
K3
K4
K5
K6
B4
PL
B3
PL
B2
PL
B1
PL
PA1/PA2
B1 B2
EE
THERMOSTAT
TERMINALS
UNITS WITH ELECTRICAL HEATERS
Disconnect wiring 73 from terminal PL
and connect this end to one of terminal
Eon the thermostat terminal strip. If
this connection is made, the bridge
marked with must be made (*). The other
thermostat terminal Eis connected from
the K5 on the board or from terminal 70.
K1
K2
K3
K4
K5
K6
B4
PL
B3
PL
B2
PL
B1
PL
PA1/PA2
B1 B2
EE
THERMOSTAT
TERMINALS
73
(*)
- 3 -
B.- Remove rear panel.
D.- Mount from thermostat panel on rear, firt using the two
tabs at the bottom and then pushing until the top tab fits into
the rear part secured to the wall.
C.- Pass the connection wiring through the hole marked
with . Secure the rear panel to a standard recessed
box using the two screws marked with or to
wall or flat surface using the three screws
marked with .
Make the electrical connections as shown in the attached
wiring diagrams.
12
3

- 33 -- 4 - 05-05-05
Micro No.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON Micro No.
Position
MICROS BLOCK S2
2
OFF
1-3-4-5-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50RHE 006-060 »
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models)
REF.- ETN.17
YG W CR
Y1 G Y 2 S W2 ESEW1OCR
O
AL1 AL2
3.- Dimensions ( mm.) Front Panel
29
Cool
Heat ON
OFF
AUX
Auto Fan
ºC
On / Off
Mode Fan
SET
92 22
80

- 32 - - 5 -
10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2
2
OFF
1-3-4-5-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 38UQZ + 40ALZ 011-014 »
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models)
REF.- ETN.16
Y 1 G W2 C R
Y1 G Y2 S W2 ESEW1OCR
O
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE
3.- Dimensions ( mm.) Rear Panel
1
2
3
90
30 30
13.5 13.5
14.5 14.5
45
79 6.57.5
812.539
2 Grooves
5.25 x 3.252 Holes
o 3.5
Groove 6.25
x 3.25
1
3
2
3
Connection
terminals
Spacingforconnectionwiring.
Holes for screwing the
Thermostat to a standard
recessedbox.
Grooves for screwing the
Thermostat to a wall or flat
surface.

- 31 -- 6 -
4.- Electrical connections
Indication of the meaning of the thermostat connections.
TERMINALBLOCKS FUNCTION
R 24 Vac
C0Vac
E Alarm (inlet for NA power-free contact
E Alarm (inlet for NA power-free contact)
O Reversible valve
W1 Electrical heater
W2 Electrical heater
S Atmospheric sensor or remote return
S Atmospheric sensor or remote return
Y2 Compressor 2 (Cold / Heat)
G Ventilation
Y1 Compressor 1 (Cold / Heat)
¡IMPORTANT! Before making any modification to the Micro-switches,
disconnect any power to the air conditioning unit. 10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 38XTZ + 40ABZ 016-024 »
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
REF.- ETN.15
Y 1 G 7 2 C R
Y 1 G Y 2 S W2 ESEW1OCR
7 1
( * ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
Y 2
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE

- 30 - - 7 -
5.- Micro-switches
Location of micro-switch blocks S1 - S2.
5.1.- Micro-switch position
Each block has 6 micro-switches.
Each micro-switch can be set to ON or OFF.
Example micros 1 and 6 to ON and micros 2, 3, 4 and 5 to OFF
Micro-switches
Blocks «S1» and «S2»
12
12
1
1
1
12
12
12
12
12
12
12
12
12
12
12
ON DIP
123456
S2 S1
10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 38XTZ + 40ALZ 014 »
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
REF.- ETN.14
3130 33 3427
Y 1 G Y 2 S W2 ESEW1OCR
( * ) .- Set Micro nº 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE

- 29 -- 8 - 10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 38XTZ + 40ALZ 011 »
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
REF.- ETN.13
Y 1 G W1 C R
Y 1 G Y 2 S W2 ESEW1OCR
( * ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE
5.2 – Configuring the Micro-switches
Position of micro-switches on Block S2:
HeatPump
Cold + Electrical Heater
Cold + Hot water Coil
ON
OFF
OFF
ON
OFF
ON
UNITTYPE 45
MICRO POSITION
SetTemp.
Atmospheric or return temp.OFF ON
ON-SCREENDISPLAY MICRO POSITION
6
internal
remote (Atmospheric or return) ON
OFF OFF
ON ON
OFF
PROBETYPE 123
MICRO POSITION
Position of micro-switches on Block S1:
Micro no2must be set to ON
Micros no1-3-4-5-6 must be set to OFF
Note:Micro2setsHeatandAux.mode.Heatonscreen and the possibility of user
selection.

- 28 - - 9 -
10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2
2
OFF
1-3-4-5-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50PZ / 38PZ + 40PZ 031-075 »
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models)
REF.- ETN.12
Y 1 G W1 C R
Y 1 G Y 2 S W2 ESEW1OCR
OY 2 1 61 7
Temp ºC
Resist.k
5.3 Atmospheric or remote return sensor connection (optional)
NTC Sensor: Temperature~Resistance Features
10.0
100.9 12.8 88.1 15.6 77.1 23.9 52.5
21.1
59.6
18.3
67.7
7.2
115.8 32.2 36.6
29.4
41.2
26.7
46.4
·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.
Factory configuration includes an internal sensor.
2
1, 3, 4, 5, 6
MicroNo. Position
ON
OFF
BLOCK S1
1, 3, 6
2, 4, 5
MicroNo. Position
ON
OFF
BLOCK S2
The micro-switches are factory configured by default in the following position:
IMPORTANT:
To check if the Unit has a
jumper befween «R & 16»
or «R & 17».
If yes, this jumper must be
removedbefore doingnew
thermostat connections.

- 27 -- 10 - 10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2
2
OFF
1-3-4-5-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50PZ / 38PZ + 40PZ 015-030 »
«50YZ / 38BZ + 40BZ 024-084»
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models)
REF.- ETN.11
Y 1 G W1 C R
Y 1 G Y 2 S W2 ESEW1OCR
O1 61 7
OPERATING MANUAL
AND
TECHNICAL ADJUSTMENT
IMPORTANT:
To check if the Unit has a
jumper befween «R & 16»
or «R & 17».
If yes, this jumper must be
removedbefore doingnew
thermostat connections.

- 26 - - 11 -
29
Cool OFF
AutoFan
ºC
On/Off Mode Fan
6. Thermostat Screens
This screen will appear once all the necessary electrical
connections have been made between the thermostat and the
Unit.
29
Coll ON
Auto Fan
ºC
On/Off Mode Fan
23
Cool ON
Auo Fan
ºC
On / Off Mode Fa n
6.1 ON / OFF
Press the On/Off button to switch the thermostat on. This
screen will appear.
To turn the thermostat off, press the On/Off button again.
6.2 Temperature adjustment
Press (+) or (-) to set the temperature. This will flash for 3
seconds and the atmospheric or set temperature will then
appear, according to the position of micro-switch 6 on block
S2.
10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50VZ / 38VZ + 40PZ 031-075 »
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
REF.- ETN.10
Y 1 G W1 CR
Y 1 G Y 2 S W2 ESEW1OCR
W2
( * ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
Y 2 1 61 7
IMPORTANT:
To check if the Unit has a
jumper befween «R & 16»
or «R & 17».
If yes, this jumper must be
removedbefore doingnew
thermostat connections.

- 25 -- 12 -
23
Heat ON
Auto Fan
ºC
On / Off M o d e F a n
23
Heat ON
Aux
Auto Fan
ºC
On / Off M o d e F a n
23
Cool ON
Fan
ºC
On / Off Mode Fan
6.3 Unit operating mode selection
Press the Mode button to choose the operating mode:
1.- When pressed once, Heat will appear on screen (Heat Mode)
2.- When pressed twice, Cool / Heat will appear on screen (Auto Mode)
3.- When pressed 3 times, Fan will appear on screen (Fan Mode)
4.- When pressed 4 times, Cool will appear on screen (Cool Mode)
The operating mode will flash on the thermostat screen. While
the thermostat is timed, the operating mode will be
permanently displayed.
6.3.1 Emergency heating, can only be selected on Heat
pump units.
This is enabled by pressing the Mode button for 5 seconds.
To cancel emergency heating and return to heat pump mode,
press the Mode button for 5 seconds.
6.4 Fan/Auto Fan operating.
Press the Fan button to change the Fan/Auto Fan operating
mode.
In Auto Fan mode the fan will only operate when there is a
demand for heat or cold, i.e. when the unit compressors and
fans are working.
10-06-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50VZ / 38VZ + 40PZ 015-030 »
«50TZ / 38FZ + 40BZ / TZ 024-084»
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
REF.- ETN.09
Y 1 G W1 C R
Y 1 G Y 2 S W2 ESEW1OCR
( * ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
1 61 7
IMPORTANT:
To check if the Unit has a
jumper befween «R & 16»
or «R & 17».
If yes, this jumper must be
removedbefore doingnew
thermostat connections.

- 13 -- 24 -
7. Temperature and probe reading adjustments.
Press the On/Off button for 7 seconds and 50 will appear on
screen.
Press the (+) button until 55 appears.
55
On/Off Mode Fan
7.1 Temperature limit for cold operations.
Press the On/Off button again and Cool and Set will appear.
Press (+) or (-) to adjust the set limit required. The
temperature range is from 10 ºC to 30 ºC
Recommended 19 ºC. (By default 10 ºC).
7.2 Temperature limit for heat operations.
Press the On/Off button again and Heat and Set will appear.
Press (+) or (-) to adjust the set limit required. The
temperature range is from 10 ºC to 30 ºC
Recommended 26 ºC. (By default 30 ºC).
IIMPORTANT
Users can change the settings on the thermostat screen without
taking the temperature limits into account, although the thermostat
will work according to the settings established (Sections 7.1 and 7.2)
19
Cool SET
ºC
On/Off Mode Fan
26
Heat
SET
ºC
On / Off Mode Fa n
05-05-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2
2
OFF
1-3-4-5-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50HZ 020-040 » WITH FREE COOLING
REF.- ETN.08
8 3 Y 1 7 2 C R
Y 1 G Y 2 S W2 ESEW1OCR
GO8 2 Y 2
K2K 1K
K .-
K 1 /K 2 .-
(*) .-
Two-contact24V.relay.
(Tobeinstalled).
Relaycontacts.
Relayconnection.
LEGEND
(*) (*) (*)
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models)
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE

- 14 - - 23 -
7.3 Calibrating the probe reading.
Press the On/Off button again. SET will appear on screen.
Adjust the probe reading value using buttons (+) and (-).
The calibration range is from -6 ºC to 6 ºC
Value by default 0 ºC.
0
SET
ºC
On / Off Mode Fan
UL
On / Off M o d e F a n
7.4 Locking the thermostat buttons.
Press the On/Off button for 7 seconds and 50 will appear on
screen.
Press the (-) button until 45 appears. Press the On/Off button
and UL will appear on screen (unlocked).
Then press the (+) button and Lc (locked) will appear on
screen.
7.5 Unlocking the thermostat buttons.
Press the On/Off button for 7 seconds and 50 will appear on
screen.
Press the (-) button until 45 appears. Press the On/Off button
and Lc will appear on screen (locked).
The press the (-) button and UL (unlocked) will appear on
screen.
LCC
CC
C
On / Off M o d e F a n
05-05-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50HZ 016 » WITH FREE-COOLING
REF.- ETN.07
83 G W1 C R
Y 1 G Y 2 S W2 ESEW1OCR
82 O
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models) NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE
72
This Unit can exceptionally be configured as Cooling only, despite it including a Heat
Pump.

- 15 -- 22 -
40
SET
On / Off Mode Fa n
7.6 Filter alarm adjustment.
Press the On/Off button for 7 seconds. 50 will appear on
screen.
Press the (+) button until 80 appears, then press the On/Off
button. The number of hours that the Unit has been running
since the last reset made will appear on screen.
Press the (+) or (-) buttons to adjust the filter change alarm.
(Range: 0, 100, 200, ..., 900 hours). This is 400 hours by default.
The adjustment displays the number of hours divided
by 10 (e.g. «40» are 400 hours).
If the value 0 is set, the filter alarm option is cancelled.
When the thermostat reaches the time indicated, the screen will
flash, showing the atmospheric temperature and «FI»
alternatively.
To cancel the alarm, keep the Fan button pressed down for 15
seconds.
FI
ON
On/Off Mode Fan
EC
ON
SET
On/Off Mode Fan
7.7 «EC» alarm signal.
The bushing marked with the letter «E» are for free voltage contact
(normallyopen).
When an alarm is triggered, the thermostat screen will show the
atmospheric temperature and «EC» alternatively. Once the problem on
the Unit has been solved, the thermostate will automatically return to its
operatingmode.
No alarm is displayed when the thermostate is switched «OFF».
05-05-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2
2
OFF
1-3-4-5-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50HZ 020-040 » WITHOUT FREE-COOLING
REF.- ETN.06
Y1 G 72 C R
Y1 G Y2 S W2 ESEW1OCR
Y2 O
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models) NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE

- 16 - - 21 - 05-05-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50HZ 016 » WITHOUT FREE-COOLING
REF.- ETN.05
Y 1 G W1 C R
Y 1 G Y 2 S W2 ESEW1OCR
O72
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Heat pump Models) NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE
This Unit can exceptionally be configured as Cooling only, despite it including a Heat
Pump.
CONNECTION DIAGRAMS
BETWEEN
THE THERMOSTAT AND THEUNIT

- 20 - - 17 - 05-05-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
(
* ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50GZ 016 » WITHOUT FREE-COOLING
REF.- ETN.01
Y 1 G 71 72 C R
Y 1 G Y 2 S W2 ESEW1OCR
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50GZ 020-040 » WITH FREE-COOLING
83 G 71 72 C R
Y 1 G Y 2 S W 2 ESEW1OCR
05-05-05
REF.- ETN.04
82
( * ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE

- 19 -- 18 -
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50GZ 020-040 » WITHOUT FREE-COOLING
Y 1 G 71 72 C R
Y 1 G Y 2 S W 2 ESEW1OCR
10-06-05
REF.- ETN.02
Y 2
( * ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE
05-05-05
MicroNo.
Position
MICROS BLOCK S1
1-3-4-5-6
OFF
2
ON
MicroNo.
Position
MICROS BLOCK S2 (*)
2-4-5
OFF
1-3-6
ON
NON-PROGRAMMABLE THERMOSTAT
MODELS « 50GZ 016 » WITH FREE-COOLING
REF.- ETN.03
83 G 71 72 C R
Y 1 G Y 2 S W2 ESEW1OCR
82
( * ) .- Set Micro no 5on
Block S2 to ON when the
Unitstartsup theHotWater
Coil.
THERMOSTAT TERMINALS
UNIT ELECTRICAL BOX TERMINALS
(Cooling only Models)
NOTE
Before connecting the
alarms,read pages34 and
35 of this manual.
SEE
NOTE