Technical data

COMMISSIONING
6 720 803 687 (2012/11)32
WALL MOUNTING
▶ Drill 2 holes and mount the outside temperature sensor.
Fig. 39 Installing the outside temperature sensor
[a] Clearance between drilled holes: 62 mm
5.8.2 CONNECTING THE OUTSIDE TEMPERATURE SENSOR
▶ We recommend the use of screened cables, run inside conduits, e.g.
LIYCY(TP).
– Recommended cross-section: 0.75 mm
2
( 0.5 mm
2
)
– The two wires are not polarity sensitive.
▶ When extending the sensor leads use the following cross-sections:
5.9 SETTING THE DIP SWITCHES OF THE EXTERNAL UNIT
▶ Set or check the DIP switches in accordance with the table 24 on
page 52 and Fig 80 page 85.
6 COMMISSIONING
6.1 BEFORE COMMISSIONING
6.1.1 SAFETY
Implement all commissioning steps so that the safety of personnel is
ensured at all times and that material losses are prevented. This includes
the following:
▶ The hybrid system and the components may only be commissioned by
a competent person.
▶ Never touch the parts of the refrigerant circuit with bare hands during
operation. The refrigerant pipes are very hot or very cold depending
on the condition of the flowing refrigerant.
▶ Never touch any switch or parts of the electrical system with wet
hands. There is risk of electric shock.
▶ It is vital that the required procedures and waiting periods for switch-
on and switch-off are adhered to. Otherwise the hybrid system
components could become severely damaged.
▶ For commissioning, the power supply to the external unit must be 'live'
for at least 12 hours prior to switching the hybrid manager 'live'. If this
time frame cannot be achieved, severe damage may occur on the
external unit. Never interrupt the power supply during normal
operation.
▶ The hybrid control module regulates the hours at which the air to
water heat pump and the condensing boiler operate, subject to the
parameters selected at the FW200.
– Never interrupt the power supply to the hybrid manager and the
external unit during normal operation.
▶ Do not interrupt power supply to any units until a minimum of 5
minutes have elapsed since last operation.
6.1.2 COMMISSIONING REQUIREMENTS
Only operate the hybrid system when all conditions for a safe and
intended operation have been met.
• The hybrid manager has been correctly mounted and connected.
• The external unit has been securely positioned, correctly installed and
connected.
• The condensate drain of the external unit has been connected.
• The heating system has been flushed and filled to correct operating
pressure.
• The refrigerant circuit is correctly installed and has been filled with
R410A refrigerant. Tightness has been verified.
• The shut-off valves on the liquid side and the gas side are fully open.
• The electrical connections are correctly made. All essential fuses/
MCBs and safety switches are installed.
• All other system components that are not described here are also
installed, connected and ready to operate ( installation instructions
of the components).
• At outside temperatures in excess of 21 °C or below -9 °C, the air to
water heat pump will not start in standard mode. Commissioning the
heat pump in this temperature range is only possible via the “Service
mode” ( chapter 6.2.24, page 46).
Refer to the gas boiler installation literature with regards
to the wiring connection of the out door sensor to the gas
boiler.
Lead length [m] Cross-section [mm
2
]
20 0.75...1.50
30 1.0...1.50
30 1.50
Table 10 Cross-sections for sensor leads
The DIP switches are correctly set at the factory. These
settings should be checked prior to commissioning.
NOTICE: Incorrect sequence of turning on power to
units can cause communication issues between outdoor
unit and internal units.
▶ Connect all BUS subscribers to the BUS prior to
connecting the BUS to the power supply.
1.
2
.
6 720 610 967-10.2J
WARNING: Risk of injury through rotating, hot or other
components that carry 'live' high voltage.
▶ Prior to starting the appliance ensure that all panels,
plates and safety equipment has been fitted
correctly.