Legend - Carrier 42N_S Manuel D'installation

42N - FAN COIL UNITS

Legend

Fig.13.
Dimensions (mm) and weight,
cabinet unit
X Cabinet version
Slots for wall vertical fixing
Condensate discharge Ø 20 mm O.D.
drain connection
Cover panels (accessories)
Supporting feet (accessories)
Slots for horizontal ceiling fixing
Dimensions (mm) and weight,
concealed unit
Y Concealed version
Condensate discharge Ø 20 mm O.D.
drain connection
Supporting feet (accessories)
Cool Ø 3/4" gas female
Heat Ø 1/2" gas female
Fig.16.
1 Minimum distance from the wall
Fig.17.
Supporting feet and cover panels
assembly for loor-mounted vertical
unit
Fig.18.
Example of installation of unit with
cabinet
2 Turn by 180°
Fig.18A.
Example of vertical installation of
concealed unit
Fig.18B.
Distance between panel – concealed
unit
A Intake grille size
B Supply grille size
C Panel size
Fig.19.
3 Screw anchor with double screw
4 Air vent
Fig.21.
Space for water connections
Front view
IN
OUT
Cool Ø 3/4" gas female
Heat Ø 1/2" gas female
Condensate drain
Floor
Fig.22.
Space for water connections
Top view
Fig.23-24-25.
5 Control box panel
6 Hooks for control fixing
7 Temperature sensor
8 No. 2 screws for coil earthing
9 Front drain pan
10 Rubber tabs for coil hook
11 Thermoelectric valve head
12 Cold water circuit
13 Hot water circuit
Fig.27
Standard electrical box
18 Electrical box
19 Cable holder
20 Terminal block
21 Electric heaters relay
22 Capacitor
25 Power supply cable
26 Control cable
27 Cold valve cables
28 Hot valve cables
Fig.28
L.E.C. motor control box panel
18 Electrical box
19 Cable holder
20 Terminal block
21 Electric heaters relay
25 Power supply cable
26 Control cable
27 Cold valve cables
28 Hot valve cables
Fig.29.
NTC electrical box
18 Electrical box
19 Cable holder
20 Terminal block
21 Electric heaters relay
22 Capacitor
25 Power supply cable
29 Transformer
30 NTC board
Fig.30.
HDB electrical box
18 Electrical box
19 Cable holder
20 Terminal block
21 Electric heaters relay
22 Capacitor
25 Power supply cable
29 Transformer
32 HDB board
33 Terminal block
34 CRC control cable (optional)
Fig.31.
Main board (ref. 32)
Communication board
5-wire wiring
Auxiliary terminal block
1 BLUE
2 GREY
3 WHITE
4 BLACK
5 RED
Fig.32.
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.33.
POWER button
Fan speed selector/energy saving
Seasonal changeover selector
Temperature knob
a Green LED - energy saving
b Yellow LED "FAN auto"
c Red LED - Low speed
d Red LED - Medium speed
e Red LED - High speed
f Red LED - heating operation
g Yellow LED - Automatic Seasonal
changeover operation
h Blue LED - cooling operation
Fig.34.
28 Screw to close the control
28 Screw
29 Screw anchor
Fig.35.
22 Control
25 Control box panel
26 Metal plate to fix the control
27 Screws
Fig.35A.
Control installation
Fig.36.
35 Protection grille
36 Safety thermostat
Fig.37.
Concealed units size of return/supply
duct
42N_S 42N_E
21