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4.5. Connecting the condensate drain pump (option)
The condensate drain pump can be supplied mounted on the unit as an option. Its technical specifications are as follows:
- Maximum flow of 8.5 l/h for a head height of 2 metres and a maximum pipe length of 5 metres.
- Maximum flow of 7 l/h for a head height of 4 metres and a maximum pipe length of 5 metres.
The operation points are provided in the table below.
Connect a clear drain pipe (not supplied) with an internal diameter of 6 mm between the pump outlet and the wastewater pipe.
Table of actual flow rates for the DE05UCC pump with Ø 6 mm PVC internal pipe:
Discharge
height
1 m
2 m
4 m
10 m
Under operating conditions outside the recommended temperature and relative humidity range (page Fr-1), the discharge
pipe must be insulated to prevent condensation, which could damage the installation and the pump. We recommend using a
transparent colourless PVC type pipe with internal diameter 6 mm/external diameter 9 mm. It is essential to ensure that the pump
connections are sealed. A clamp can be used for this purpose.
Important: Check the unit selection data to determine the maximum condensate flow rate.
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).
4.6. Electrical connections
● Disappearance of the causes of the stoppage may pose the risk of danger during restarting.
● Disconnect the electrical supply to the unit before carrying out any work.
● Only personnel qualified to perform electrical work may carry out installation and maintenance work.
Before connecting the unit to the network, ensure that the voltage matches that indicated on the data plate (230 V/1-ph/50-60 Hz).
42KY
V5
V4
V3
V2
V1
An earthing connection is compulsory. Carrier will not accept liability for the consequences of faulty or non-existent
earthing. Always follow the circuit diagram delivered with unit.
Circuit diagrams for customer applications should be based on the diagrams supplied:
- Unit wiring for 2-pipe systems, without condensate pump (Fig. 10).
- Unit wiring for 4-pipe systems, without condensate pump (Fig. 11).
- Unit wiring for 2-pipe systems with an electrical heater using 2 heating elements, without condensate pump
(P=900 or 1200W max) (Fig.12).
Note: if necessary, the output of the 300W electrical heater can be reduced by removing the shunt positioned between terminals
8 and 9.
We recommend using a system that controls the device in relation to the temperature of the water (to actuate the valve(s), used
with an electrical heater.
All electrical connections are are made in the electrical box marked with the symbol
a cable grommet to facilitate the routing of the cables to the terminal block.
● To access the electrical terminal block:
Disconnect the unit from the electrical power supply.
Use a screwdriver to undo, but not remove, the lateral retaining screw on the electrical box casing (Fig. 13 a).
● Modifying the motor speeds:
Always use a screwdriver when performing cabling operations.
TABLE OF ACTUAL FLOW RATES (l/h)
Total pipe length (internal Ø, 6 mm)
5 m
10 m
10.4
9.1
8.5
7.8
7.9
7.1
7
AC Asynchronous Motor (230V/50Hz)
10/
20
W
A
W
A
75
0.33
75
0.33
45
0.20
45
0.20
38
0.16
38
0.16
28
0.12
28
0.12
19
0.08
19
0.08
20 m
8.3
7
6.3
6
5.3
EC brushless motor (230V/50Hz)
30
19
Puissance absorbée
W
A
W
A
98
0.43
35
0.18
73
0.32
15
0.09
59
0.26
11
0.07
48
0.21
7
0.04
35
0.15
5
0.02
30 m
7.3
6.4
5.8
4.9
29
39
W
A
W
A
36
0.18
57
0.40
14
0.09
32
0.28
10
0.07
22
0.17
7
0.04
15
0.13
5
0.02
9
0.10
. The electrical box is equipped with
27
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