Technibel HKE 189R5I, Installation Manual And Operating Instructions, Page: 19 / 27

18
GB
6.2.2 - MODULE CC1 CONFIGURATION
• The communication and control module manage the circulator and
the communication interface between the system and the generator.
It is equipped with 2 micro-switches, No. 1 and No. 2.
Micro-switch No. 1 :
In “ ON ” position, the circulator starts automatically if the outdoor
temperature is below 0°C to prevent the hydraulic circuit from
freezing. This position is recommended if the outdoor module is
installed in a location exposed to freezing temperatures (not
recommended).
The factory default setting for this micro-switch is “ OFF ”.
Micro-switch No. 2 :
Must be set to “ ON ” (activates the water flow safety on the
system).
6.2.3 - SYSTEM PARAMETERISATION
• Make sure that the control unit selector is “ OFF ”.
• Check the parameterisation and adapt it accordingly based on the
type of installation.
The parameters are set on the control box (refer to the system's installation manual).
6.3 - ADDITIONAL HYDRAULIC CIRCUIT VERIFICATIONS
6.3.1 - FORCED CIRCULATOR OPERATION
• In order to conduct the final verifications of the hydraulic circuit, force
the pump to start as follows (installation power ON):
- Set the system control unit to “ OFF ”.
- Press and hold the button for 5 seconds.
The circulator starts.
The circulator indicator light flashes.
- Check that the “ H
2
O ” flow indicator is illuminated.
6.3.2 - VERIFICATIONS
• Purging of circuits.
• Hydraulic pressure (2 bar).
• Water flowrate: the unit is equipped with 1/4 SAE pressure taps at the circulator inlet and outlet (see paragraph 2.1.1),
so that the pressure loss can be measured using a hydraulic pressure gauge. Use the circulator curves below to
determine the water flow rate.
In order for the apparatus to work properly, the nominal flow rate must be respected.
6.3.3 - CIRCULATOR CURVES
Micro-switches
No. 1 and No. 2
0
10
20
30
40
50
60
70
80
90
1 1.5 2 2.5 2.8
HKE 369R
1.8
HKE 259R
1.4
HKE 189R
0.9
HKE 489R
2.3
HKE 609R
2.7
HKE 189R / 259R / 369R / 489R / 609R
Circulator SXM 32-55
Water flowrate (m
3
/h)
Manometric
delivery
head
(kPa)
of
the
circulator
Speed 1
Speed 2
Speed 3
0
10
20
30
40
50
60
70
80
90
100
110
120
2 2.5 4 4.5 3 3.5
HKE 709R
3.4
HKE 909R
4.1
HKE 709R / 909R
Circulator SXM 32-80 OEM
Water flowrate (m
3
/h)
Manometric
delivery
head
(kPa)
of
the
circulator
Speed 1
Speed 2
Speed 3
19
GB
7 - MAINTENANCE INSTRUCTIONS
7.1 - GENERAL MAINTENANCE
All equipment must be properly maintained in order to provide optimum performance over time. Faulty maintenance can result in
the cancellation of the product guaranty. Depending on the products, maintenance operations consist in the cleaning of filters (air,
water), internal and external exchangers, casings, and the cleaning and protection of condensate tanks. Treating odours and the
disinfection of room surfaces and volumes also contributes to the cleanliness of the air breathed by users.
• Carry out the following operations at least once a year (the frequency depends on the installation and operating conditions):
- check for leaks on the refrigerating circuit (according to the order of 7th May 2007).
- check for traces of corrosion or oil stains around the refrigerating components,
- inspect the composition and the condition of the coolant and check that it does not contain traces of refrigerating fluid,
- cleaning the exchangers,
- checking the wear parts,
- checking the operating instructions and points,
- check the safety devices,
- de-dusting the electrical equipment cabinet,
- checking that the electrical connections are secure,
- checking the earth connection,
- check the hydraulic circuit (clean the filter, water quality, purge, flowrate, pressure, etc.).
7.2 - HEATER SAFETY
• The unit's heater is equipped with an automatic-reset and a manual-reset safety thermostat.
• These thermostats trip in case of excessive temperature on the heater wall.
• Possible causes:
- Excessively low or inexistent water flowrate.
- Improperly purged water system.
• If the manual thermostat trips, correct the fault then reset the thermostat as follows:
- Turn off and lock out the unit .
- Remove the cover.
- The thermostats are located against the heater partition, on the front (see paragraph 2.1.1).
- Press the button in the centre of the manual thermostat.
7.3 - PROTECTION OF HEATER CIRCUITS
• The heater features three heating elements each supplied with 230 V between phases and neutral. Each of these circuits
are protected by a modular circuit breaker ( Q1, Q2, Q3 ) located inside the electrical box.
7.4 - CONTROL CIRCUIT PROTECTION
• The indoor unit's control circuit is protected by a modular circuit breaker Q4 located next to module CC1 . It is accessible
through the small window on the right-hand side of the unit (without removing the cover panel).
• Before doing any work on the installation, make sure it is switched off and all power supplies locked out.
• Also check that the capacitors are discharged.
• Any work must be carried out by personnel qualified and authorised to work on this type of machine.
• Prior to all maintenance and servicing on the refrigerating circuit, one must first shut down the unit then wait a
few minutes before installing temperature or pressure sensors. Certain equipment, such as the compressor and
piping, may reach temperatures above 100°C and high pressures may lead to serious burns.
IMPORTANT NOTE
6.3.4 - SHUTDOWN FORCED CIRCULATOR OPERATION
• Press and hold the button for 5 seconds.
The circulator stops.
The circulator indicator light and the “ H
2
O ” flow rate light do out.
6.4 - OPERATION
• Installation power is ON.
• Start the system in the desired operating mode using the control box button (consult the system control manual and the
control box user's guide).