Carrier 42NC, Инструкции по установке, эксплуатации и обслуживанию, Страница: 14 / 20

8 - CONDENSATE DRAIN PUMP
The units can be equipped with a condensate drain pump.
Its technical specifications are as follows:
l
Maximum flow of 8.5 l/h for a pumping height of 2 metres and
a horizontal pipe length of 5 metres.
l
Maximum flow of 7 l/h for a pumping height of 4 metres and a
horizontal pipe length of 5 metres.
The operation points are provided in the table below.
Table of actual flow rates for the pump connected to a PVC pipe
with an internal diameter of 6 mm.
Pump performance: Water flow rate in litres per hour (-15% / +20%)
Discharge height
Horizontal length of the discharge pipe
5 m 10 m 20 m 30 m
1 metre
10,4 9,1 8,3 7,3
2 metres
8,5 7,8 7 6,4
3 metres
7,9 7,1 6,3 5,8
4 metres
7 6 5,3 4,9
Warning: make sure that the flow of water to be discharged in
the thermal selection is suitable for your application
Note: this accessory must always be used with a valve control
device, to ensure valve control of the high safety device when
the valve is closed (closure of the condensate drains).
Under operating conditions outside of the recommended
temperature and relative humidity ranges (“operating limit
recommendations” section on page FR-7), the discharge pipe
must be insulated to prevent the formation of condensation,
which could damage the installation and the pump. We
recommend the use of a crystal clear translucent PVC pipe with
an internal diameter of 6 mm and an external diameter of 9 mm.
The tightness of the connections to the pump must be verified
using a clamp
Fitting the pump, vertical model (fig.10) and horizontal
model (fig.11):
If the pump is delivered separately as a kit, screw the pump onto
the unit using the 2 mounts (a) and 2 screws (b), and connect
the hose to the condensate pan (d). Connect a clear drain hose
(not supplied) (c) with an interior diameter of 6 mm between the
pump outlet and the wastewater pipe.
Finally, connect the power cables (e) as shown in the diagram
supplied with the unit.
Caution: this hose should not be pinched or touch the unit or
any other external component. Wire as indicated on the attached
circuit diagram.
9 - ELECTRICAL CONNECTIONS
● Ensure that the power supply to the unit is disconnected before carrying out any work.
● Only personnel qualified to perform electrical and maintenance work may make electrical connections.
As indicated on the data plate, the unit must be connected to a single-phase 230V power supply (230/1/50Hz-60Hz).
Motor
speed
AC Asynchronous Motor Brushless Motor
115/
135
215/
235/
245
315/
325/
335/
345
435/
445
535/
545
635/
645
119/
139
219/
239/
249
319/
329/
339/
349
439/
449
539
639/
649
Power input during
operation (W)
V5
33 58 88 106 108 135 11 25 32 77 90 100
V4
31 41 67 93 94 114 9 15 22 63 80 75
V3
29 36 52 80 79 99 6 11 13 36 42 55
V2
27 31 42 72 72 88 5 8 7 21 26 32
V1
26 27 35 63 63 77 4 5 3 11 13 16
Max. absorbed current
(A)
V5
0,14 0,25 0,38 0,46 0,47 0,59 0,11 0,2 0,29 0,62 0,71 0,74
V4
0,13 0,18 0,29 0,4 0,41 0,5 0,09 0,13 0,2 50 0,62 0,67
V3
0,13 0,16 0,23 0,35 0,34 0,43 0,07 0,11 0,13 0,3 0,35 0,44
V2
0,12 0,13 0,18 0,31 0,31 0,38 0,06 0,09 0,08 0,19 0,21 0,27
V1
0,11 0,12 0,15 0,27 0,27 0,33 0,06 0,06 0,06 0,11 0,13 0,16
The unit must be earthed. Carrier shall not be liable for incidents resulting from faulty or non-existent earthing. Always
follow the circuit diagram delivered with unit.
To access the electrical terminal block:
Disconnect the unit from the electrical power supply.
Remove the casing (fig. 4) for 42NC or 42NR version units.
Remove the screw from the electrics box enclosure (fig.12b).
Modifying the motor speeds:
Always use an electrician’s flat-blade screwdriver when
performing cabling operations.
The
42NC/ND range offers a choice between two types of motor
technology: asynchronous and brushless (low consumption).
● The asynchronous motor :
To optimise the unit’s performance and depending on the type
of control used, the unit has five speeds numbered V1 to V5
connected to the terminal block in the electrics box (V1= low
speed and V5= high speed).
The customer must wire the speeds for the thermostat at the top
of the terminal block between V1 and V5.
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