Grant Aerona 3 HPID10R32, Instructions Manual, Page: 13 / 100

Section 3: Installation Information Page 13
• MCS Installers Standards (if applying for the Renewable Heat
Incentive)
• MIS 3005 (Requirements for contractors undertaking the
supply, design, installation, set to work commissioning
and handover of microgeneration heat pump systems)
• MCS 020 (MCS Planning Standards)
• MCS 021 (MCS Heat Emitter Guide for Domestic Heat
Pumps)
The installation should also be in accordance with the latest edition
of the following standards and codes of Practice:
• BS 7671 and Amendments
• BS EN 12831
• BS 7593
3.4 HEAT PUMP LOCATION
3.4.1 SELECTION OF POSITION
• Consider a place where the noise and the air discharged will
not affect neighbours.
• Consider a position protected from the wind.
• Consider an area that reflects the minimum spaces
recommended.
• Consider a place that does not obstruct the access to doors or
paths.
• The surfaces of the floor (or the wall for wall mounted heat
pumps - Refer to Section 3.6) must be solid enough to support
the weight of the heat pump and minimise the transmission of
noise and vibration.
• Take preventive measures so that children cannot reach the
unit.
• Install the heat pump in a place where it will not be inclined
more than 5°.
• When installing the heat pump where it may exposed to strong
wind, brace it securely.
• Aerona³ heat pumps are now suitable for installation in coastal
areas without any special treatment.
Decide the mounting position as follows:
1. Install the heat pump in a location which can withstand the
weight of the heat pump and vibration. Please make sure it is
installed level.
2. Will a Grant external volumiser be fitted behind the heat pump?
(Refer to installation instructions supplied with the external
volumiser for more details). The Grant external volumiser is not
suitable for units that have been wall mounted.
3. Provide the indicated space to ensure good airflow. (Refer to
Section 3.5.2).
4. Do not install the heat pump near a source of heat, steam or
flammable gas.
5. During heat pump operation, condensate water flows from the
heat pump. Therefore, install the heat pump in a place where
the condensate water flow will not be obstructed.
6. Do not install the heat pump where strong wind blows directly
onto the heat pump or where it is very dusty.
7. Do not install the heat pump where people pass frequently.
8. Install the heat pump in a place where it will be free from
adverse weather conditions as much as possible.
3.4.2 NOISE LEVEL
All heat pumps make a noise. Discuss the potential nuisance factor
with the end-user when considering the final position of the heat
pump. Take opening windows and doors into account. It is not
essential for the heat pump to be positioned next to a wall of the
house. Behind an out-building may be more suitable so discuss the
options with the end-user.
3.4.3 ORIENTATION
The North face of the building will usually have colder ambient air
than any other side. To ensure maximum efficiency from the Grant
Aerona³ heat pump, position the heat pump on a warmer side. In
order of preference, site the heat pump on a South face followed by
either South East or South West, then by East or West. Only install
on a North face if there is no other alternative.
3.5 PREPARATION FOR INSTALLATION
3.5.1 BASE
Unless the heat pump is to be wall mounted (refer to Section 3.6 for
further information), it should be installed on a firm flat level surface
capable of supporting the weight of the heat pump and minimising
the transmission of noise and vibration, for example:
•
A flat trowelled concrete base 150mm thick.
• Paving slabs on compacted hard core of a sufficient depth for
the ground condition.
This surface should extend at least 150mm beyond the heat pump
on three sides.
If this surface is level with or above the damp course for the
building, leave a gap of approximately 150mm between the edge of
the base and the wall of the house to avoid bridging the DPC.
The heat pump should NOT be installed on loose or uneven
surfaces such as grass, soil, shingle or gravel.
The heat pump must be raised up from the surface of the base by
approximately 100mm on suitable anti vibration mounts or blocks.
3.5.2 CLEARANCES
The following
minimum
clearances must be used to enable the
product to be easily commissioned, serviced and maintained and
allow adequate air flow in and out of the heat pump.
Refer to Table 3-1 and Figure 3-1.
Table 3-1: Clearances
Aspect Minimum clearance required (mm)
Top 300
Bottom Approximately 100*
Front 600
Rear 300
Left 100
Right 600
* Height of A/V mounts (product code: HPIDFOOT/KIT)
If the heat pump is to be wall mounted the rear clearance can be
reduced to 150mm. Refer to Section 3.6 for further information on
wall mounting Grant Aerona³ heat pumps.
00
3 r
ev
O
mm
Over 600 mm
Over 100
mm
Over
300 m
m
Over 600
mm
HPID12
Figure 3-1: Clearances (applicable to all models)