Electrical Connection - McQuay D Serie Manual De Instalación

Piping Connection To The Units
Align the center of the piping and sufficiently tighten the flare nut
with fingers.
Finally, tighten the flare nut with torque wrench
until the wrench clicks.
When tightening the flare nut with the torque wrench,
ensure that the direction for tightening follows the arrow on the
wrench.
The refrigerant pipe connection are insulated by polyurethane
(ARMAFLEX type or similar).
Ø Tube, D
Inch mm
1/4" 6.35
3/8" 9.52
1/2" 12.70
5/8" 15.88
3/4" 19.05
Pipe Size, mm (in)
6.35 (1/4)
9.53 (3/8)
12.7 (1/2)
15.88 (5/8)
19.05 (3/4)
Cooling Only Units, CC 30 D
Indoor unit
Outdoor unit
Voltage range**
Recommended fuse*
Power supply cable size*
Number of conductors
Interconnection cable size*
Number of conductors
CC 30 D - SL 28 C
COMP
L/L1
N/L2
Indoor unit
Terminal block
N/L2
A (mm)
Imperial Rigid
1.3 0.7
1.6 1.0
1.9 1.3
2.2 1.7
2.5 2.0
Torque (Nm)
18
42
55
65
78

ELECTRICAL CONNECTION

A
mm 2
mm 2
Interconnecting cable
Power Supply Cable
Flare Joint
Indoor Piping
Special Precautions When Mounting TXV Bulb
• TXV bulb should be clamped to the suction line near the evapo-
rator outlet, and if possible, on a horizontal run.
• Clean suction line completely before clamping the bulb in place.
• Clamp the bulb to a free draining suction line.
• Insulate the bulb from ambient.
Note: The TXV bulb must be fixed at suction line at 8 o'clock or
4 o'clock.
TXV bulb placement in relation to suction line size
TXV Bulb on small Suction Line
TXV Bulb on large Suction Line
CC 30D
SL 28C
220V–240V / 1Ph / 50Hz + ! or 208V–230V / 1Ph / 60Hz + !
L
!
There must be a double pole switch
N
with a minimum 3 mm contact gap
E
in the fixed installation circuits.
1-6
Flared Tube
Flare Nut
Torque Wrench
Spanar
25
4.0
3
2.5
4
COMP
Outdoor unit
Terminal block
N