Carrier 4 2 gw - Legend

3142 GW
English
“Hydronic Global Cassette” Fan Coil Units
Fig. 1.
A - Unit
B - Frame/Grille assembly
Fig. 15.
 - Heating: louvre position for correct air
ow
 - Cooling: louvre position for correct air
ow
Warning
To close one or two air outlets use the special kit
Fig. 18.
1 - Nut
2 - Wooden frame
3 - Threaded hangers
4 - Washers
5 - Nut
6 - Washers
7 - Threaded hangers
8 - Washers
9 - Nut
10 - Nut
Fig. 19.
7 - Threaded hangers
11 - "T" bar (to be removed)
Fig. 20.
7 - Threaded hangers
11 - "T" bar (to be removed)
12 - Suspension brackets
18 - Electrical box
Fig. 21.
13 - False ceiling
14 - Spirit level
Fig. 24.
15 - Frame pre-hooking support
16 - Safety belt
17 - Frame supporting nuts and spacers
Fig. 25.
- Gasket "A"
- Gasket "B"
-
Air discharge
Fig. 26-27.
- Cold circuit water inlet
- Cold circuit water outlet
- Air purge valve
- Hot circuit water inlet
- Hot circuit water outlet
Fig. 28.
See section “Motorized valve”
Fig. 31.
Automatic operation position
- Valve body
- Thermo-electric valve head
Fig. 32.
Electric heater protections
A- Manual reset thermostat
B- Automatic reset thermostat
Fig. 35.
18 - Electrical box
19 - Cable holder
20 - Terminal block
21- Electric heater relay
22- Capacitor
23 - Fusible
24- Valve cable inlet
Fig. 36-37.
25 - Power supply cable
26 - Cable
27 - Cold valve cables
28 - Hot valve cables (4 pipes only)
Fig. 38.
18 - Electrical box
19 - Cable holder
20 - Terminal block
21 - Electric heater relay
22- Capacitor
29 - Transformer
30 - NTC board
Fig. 39.
18 - Electrical box
19 - Cable holder
20 - Terminal block
21 - Electric heater relay
22- Capacitor
25 - Power supply cable
29 - Transformer
30 - NTC board
31 - EC motor board
Fig. 39e. - 39f. - 39g. - 39h.
18 - Electrical box
19 - Cable holder
20 - Terminal block
21 - Electric heater relay
25 - Power supply cable
31 - EC motor board
30 - NTC board
35 - Valve net
36 - 24 VAC terminal board
Fig. 40.
18 - Electrical box
19 - Cable holder
20 - Terminal block
21 - Electric heater relay
22- Capacitor
25 - Power supply cable
29 - Transformer
32 - HDB board
33 - Terminal block
34 - CRC control cable (optional)
Fig. 40a.
 Main board (ref. 32)
 Communication board
 5-wire wiring
 Auxiliary terminal block
1 BLUE
2 GREY
3 WHITE
4 BLACK
5 RED
Fig. 40b.
 First indoor unit
 Second indoor unit
 Third indoor unit
A Comunication board
B To the other terminal block
1 BLUE
2 GREY
3 WHITE
4 BLACK
5 RED
Fig. 40e.
Winter operation diagram with fresh air intake
- Antifreeze thermostat
- Speed controller
- Fresh air fan motor
- Relay 230V
a= neutral
b= cooling signal 230V
c= heating signal 230V
Fig. 41.
14 - On/o/fan speed selector
15 - Blue LED - cooling operation
16 - Seasonal changeover button
17 - Red LED - heating operation
18 - Yellow LED - automatic operation (only for
type “B”)
19 - Energy saving button
20 - Yellow LED - energy saving operation
21 - Temperature knob
Fig. 42.
27 - Screw to close the control
28 - Screw
29 - Screw anchor
Fig. 43.
30 - Minimum temperature sensor (optional)
31 - Air sensor
33 - Internal temperature sensor
34 - Dip-switch selector
Fig. 44.
Air intake grille
- Wall
- Undercut door
- Wall-tted grille
- Door-tted grille
Fig. 45.
- Duct connection ange
- Clip
- 6 mm neoprene gasket
- Insulated exible duct
- Fresh air intake
- Conditioned air supply to an adjacent room
Fig. 47.
Diagram of conditioned air supply to an adjacent
room: one louvre closed
- Supply air duct to adjacent room
In case of two louvres closed, the fresh air ow
towards the adjacent room is 50% higher compared
with only one louvre closed (with equal static
external pressure)
Fig. 49.
Filter removal
Fig. 50.
Filter cleaning
Legend