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1
WARNING
This device may be used by children who are
at least 8 years old, by people with reduced
physical, sensory or mental capacities or
those without knowledge or experience, if
they are properly supervised and if the
instructions relating to using the device
completely safely have been given to them
and the associated risks have been
understood. Children must not play with the
device. Cleaning and maintenance
undertaken by the user must not be carried
out by unsupervised children.
2
CAUTION
ZKH 20 is a pump for lifting condensation water from an air
conditioning system, a condensation boiler or from refrigeration
units. Include a neutralisation device if necessary (see the
manufacturer's instructions for your boiler).
The pump starts automatically and has a high level of
performance, safety and reliability provided that all the
installation and maintenance instructions described in this notice
are strictly followed.
Please take particular note of the information marked by :
«
» Indication that a risk of electrical origin exists,
«
» Instructions for use only by qualified professionals.
ZKH 20 contains a pump. The tank of the ZKH 20 is fitted with a
float which controls the operation of the motor. When the
condensates enter the tank, the pump starts up.
3
ZKH 20 AREA OF APPLICATION AND
TECHNICAL DATA
Air conditioning systems, boilers,
Application
Type
Max. vertical pumping
Maximum flow rate (litres / hour)
Flow rate at 4 m
Min. pH
Voltage
Frequency
Power rating
Current consumption
Electrical class
Protection index
Sound level
Average utilisation temperature
Maximum allowable temperature
Net weight
Tank volume
Supply cable
Discharge hose
Alarm cable (3 core)
Wall fastening
CAUTION:
All applications other than those described in this notice are pro-
hibited.
refrigeration units
CD10
4,5 m
342
156
2,5
220-240 V
50 Hz
60 W
0,52 A
I
IP20
< 45 dBA
35°
80°
S3 15% (90s ON, 510s OFF)
2000 g
1,2 litre
2 m
5 m
2 m
Yes
4
LIST OF DOCUMENTS PROVIDED: see fig.1
5
DIMENSIONS: see fig.2
6
PERFORMANCE CURVES: see fig.3
7
VERTICAL PUMPING/HORIZONTAL PUMPING:
see fig.4
8
INSTALLATION
ZKH 20 has wall fixings.
The unit should be easy to access for testing and
maintenance.
The unit must be installed level. Adjust the installation
using a spirit level before fixing the unit.
Make sure that the equipment is protected from damp while ins-
talling it.
5a
CONNECTION AT THE COVER INLET
The unit has 1inlet 28 mm in diameter. To connect the water to be
drained off, connect the water inlet to one of the inlets. If neces-
sary, use the rubber adaptator
5b
CONNECTING TO THE DISCHARGE PIPE
The ZKH 20 discharge pipe must be connected to the flexible
hose (supplied : length 5 m). This hose should be used to form
the vertical section of the discharge pipe.
• Place the flexible hose onto the non-return valve of the
ZKH 20 (see diagram
5b
) .
• Position the flexible hose in the most vertical position
possible to avoid it kinking.
• It is advisable to make a smooth bend to avoid the hose
kin-king.
The ZKH 20 is fitted with a non-return valve to prevent re-
activation.
INSTRUCTIONS INTENDED SOLELY FOR
QUALIFIED PROFESSIONALS
ELECTRICAL CONNECTION
The electrical installation should be carried by a qualified person.
The unit should be connected to a fully earthed electrical
supply. All wiring must conform to BS7671, 1992 requirements for
electrical installations. The ZKH 20 requires a 220/240V single
phase AC 50 Hz supply (UK specification).
The condensate pump power plug must be easily accessible.
Check whether the earth resistance is lower than 38Ω.
Protect the condensate pump via an RCD with a rated response
current of not more than 30 mA.
INSTRUCTIONS INTENDED SOLELY FOR
QUALIFIED PROFESSIONALS
5c
ALARM
ZKH 20 is fitted with a detection system that can
trigger an alarm if the water level rises too high
(audible or visual alarm, 1.5V to 230V), see diagram
1
. Brown wire: shared wire
2
. Black wire: normally off
3
. Blue wire: normally on
To fit the alarm, connect the blue and brown wires
of the alarm to the respective terminals on the
ZKH 20.
19, 32, 40 mm.
X
A
5c
:
9 9
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