Please Read Immediately; Important Information; Regulations / Safety Information; Description - Dimplex AWP 30 HLW Installation And Operating Instructions Manual

1
1 Please Read
Immediately

1.1 Important Information

ATTENTION!
The (painted) steel coverings, particularly the upper cover plates, are not
designed to withstand large forces!
ATTENTION!
High centre of mass, low overturning moment!
ATTENTION!
When installing the on-site pipework, ensure the pipes do not get
contaminated (flush pipes before connecting hot-water heat pump)!
ATTENTION!
Only operate hot-water heat pump when filled with water!
ATTENTION!
Before opening the hot-water heat pump, unplug mains plug and observe
possible coasting of ventilator!
ATTENTION!
Ensure water does not come into contact with the operator controls.
1.2 Regulations / Safety
Information
ATTENTION!
Read these installation and operating instructions before start-up!
The hot-water heat pump is exclusively used to heat water
for domestic use and drinking water within the specified op-
erating temperature limits!
The construction and design of the hot-water heat pump
complies with all relevant EG directives. (see also CE decla-
ration of conformity).
The technician must ensure that the refrigerant is flushed
adequately to allow maintenance and repair work on refrig-
erant circuit components without risk. Refrigerant must be
properly used and disposed of; it must not be released into
the environment! (The refrigerant R134a is CFC-free, non-
inflammable and not ozone depleting).
When working on the hot-water heat pump, always discon-
nect the power supply (disconnect plug).
When connecting the hot-water heat pump to the power sup-
ply, the relevant VDE, EN and IEC standards are to be ful-
filled. Also observe the technical connection requirements of
the electrical utility companies.
ATTENTION!
Work on the hot-water heat pump is to be performed by qualified persons
only! Observe the accident prevention regulations!
E-2
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Description

2.1 General Information

The hot-water heat pump is a ready-to-use heating device and
mainly consists of hot water cylinders, the components for the re-
frigerant, air and water circuits, as well as all of the control, regu-
lation and monitoring devices required for automatic operation.
Using electrical energy, the hot-water heat pump heats water
using the heat stored in the air, which is sucked in. The hot-water
heat pump with internal heat exchanger can be connected to ad-
ditional heat generators such as heat boilers or solar installa-
tions. A vertical cladding tube (inner ∅ ≥ 12 mm) houses an ex-
ternal temperature sensor. The devices are equipped with an
electric heating element (1.5 kW) as standard.
The temperature of the air sucked in (the heat source) is used as
reference value for energy consumption and DHW preparation
heat up time.
For this reason, an air duct system (DN 160, max. length 10 m)
can be connected to the standard spigot of the hot-water heat
pump for specific waste heat recovery. In principle, effective op-
eration of the heat pump requires that there is no air short-circuit
between the air that is sucked in and the air that is blown out.
This can, for example, be achieved by a flexible air hose on the
intake and outlet side.
Falling outlet air temperatures reduce heat pump performance
and increase heat-up time. Air inlet temperature should not fall
below 15 °C for economical heat pump operation. If the air inlet
temperature falls below 8 °C ±1.5 (switch-back value 3 K), the
heat pump is switched off and the DHW is heated by the stand-
ard heating element (1.5 kW).
The electric heating element fulfils four functions:
Supplementary heating
The heating-up period is approx. halved by switching on the
heating element (using the "Heating Element" switch, see
Point 3) in addition to the heat pump.
Frost protection
If the air temperature falls below 8 ±1.5 °C (switch-back
value 3 K), the electric heating element switches on auto-
matically and (nominally) heats the water up to the set hot
water temperature. The hot-water temperature generated by
the heating element in antifreeze mode can exceed the set
value!
Emergency heating
The water supply is maintained by the electric heating ele-
ment if the heat pump is out of order.
Higher water temperature
If the required hot water temperature is higher than the tem-
perature achievable by the heat pump (approx. 60 °C), it can
be raised to a max. of 85 °C by using the heating element.
ATTENTION!
When the hot water temperature reaches > 60 °C, the heat pump switches
off and the hot water is heated solely by the heating element. The heating
element controller is factory set to 65 °C (see 4.4).