Commissioning; General; Preparation; Procedure - Dimplex LA 33TPR Installation And Operating Instruction

LA 33TPR
8

Commissioning

8.1 General

Commissioning must be carried out by trained personnel. Spe-
cialist tools must be used. To ensure that commissioning is per-
formed correctly, it should only be carried out by an after-sales
service technician authorised by the manufacturer (Fig. 1.1 on
page 2). Under certain conditions, this may be associated with
an additional warranty service.
CAUTION!
Commissioning, maintenance and repair only by personnel
who have verifiably been trained in dealing with the
refrigerant propane.

8.2 Preparation

The following items must be checked prior to commissioning:
The casing covers of the heat pump must be mounted on

all sides.
 There must be no ignition sources in the safety zone.
Personal protective equipment (protective goggles, safety

shoes and gloves where necessary) must be used when
working on the device.
All of the heat pump connections must be installed as de-

scribed in chapter 7.
 The heating circuit must have been filled and checked.
The leakage tightness of the refrigerant circuit must be

tested after all assembly work is complete and the external
power supply (load and control voltage) has been con-
nected. The leakage tightness test is described in the
maintenance instructions.
All valves which could impair the proper flow in the heating

circuit must be open.
 The air intake and air outlet paths must be clear.
The fan must turn in the direction indicated by the arrow.

The settings of the heat pump manager (controller

-N1) must be adapted to the heating system in accordance
with the operating instructions.
 Ensure that the condensate drain functions properly.
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8.3 Procedure

NOTE
Only software that is authorised and approved by the
manufacturer can be installed on the machine's control
system.
The heat pump is commissioned via the heat pump manager
(controller -N1). Settings should be made in compliance with
the heat pump manager's instructions.
At heating water temperatures under 7°C, commissioning is not
possible. The water in the buffer tank must be heated with the
2nd heat generator to at least 22°C.
To ensure problem-free commissioning, the following proce-
dure is to be implemented:
1) Close all consumer circuits.
2) Ensure that the heat pump has the correct water flow.
3) Use the manager to select the automatic operating mode.
4) In the special functions menu, start the "Commissioning"
program.
5) Wait until a return temperature of at least 29°C has been
reached.
6) Now slowly reopen the heating circuit valves in succession
so that the heating water flow rate is constantly raised by
slightly opening the respective heating circuit. The heat-
ing water temperature in the buffer tank must not be al-
lowed to drop below 24°C during this process. This en-
sures that the heat pump can be defrosted at any time.
7) When all heating circuits are fully open and a return tem-
perature of at least 22°C is maintained, the commissioning
is complete.
CAUTION!
Operating the heat pump at low system temperatures may
cause the heat pump to break down completely.
CAUTION!
Due to the solubility of propane in water, propane may enter
the hydraulic circuit in the event of leakage at the plate heat
exchanger despite the safety valve and the bubble separator.
Commissioning, maintenance and repair only by personnel
who have verifiably been trained in dealing with the
refrigerant propane.
452166.66.14 · FD 0008
English
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