General; Selecting A Location In Cold Climates - Daikin Altherma EDHQ011BB6V3 Installation Manual

General

1 Select an installation site where the following conditions are
satisfied and that meets with your customer's approval.
- Places which are well-ventilated.
- Places where the unit does not bother next-door neighbours.
- Safe places which can withstand the unit's weight and
vibration and where the unit can be installed level.
- Places where servicing space can be well ensured.
- Places where the units' piping and wiring lengths come within
the allowable ranges.
- Places where water leaking from the unit cannot cause
damage to the location (e.g. in case of a blocked drain pipe).
- Places where the rain can be avoided as much as possible.
- Do not install the unit in places often used as workplace.
In case of construction works (e.g. grinding works) where a
lot of dust is created, the unit must be covered.
- Do not place any objects or equipment on top of the unit (top
plate)
- Do not climb, sit or stand on top of the unit.
- All piping lengths and distances have been taken into
consideration.
Requirement
Maximum allowable distance between the domestic
hot water tank and the unit (only for installations with
domestic hot water tank). The thermistor cable
supplied with the domestic hot water tank is 12 m in
length.
In order to optimise efficiency Daikin recommends to
install the 3-way valve and the domestic hot water
tank as close as possible to the unit.
2 When installing the unit in a place exposed to strong wind, pay
special attention to the following.
Strong winds of 5 m/sec or more blowing against the unit's air
outlet causes short circuit (suction of discharge air), and this
may have the following consequences:
- deterioration of the operational capacity,
- frequent frost acceleration in heating operation,
- disruption of operation due to rise of high pressure,
- when a strong wind blows continuously on the face of the
unit, the fan can start rotating very fast until it breaks.
Refer to the figures for installation of this unit in a place where
the wind direction can be foreseen.
Turn the air outlet side toward the building's wall, fence or
screen.
Make sure there is enough room to do the installation
Set the outlet side at a right angle to the direction of the wind.
Strong wind
Blown air
Installation manual
13
3 Prepare a water drainage channel around the foundation, to
drain waste water from around the unit.
4 If the water drainage of the unit is not easy, please build up the
unit on a foundation of concrete blocks, etc. (the height of the
foundation should be maximum 150 mm).
5 If you install the unit on a frame, please install a waterproof plate
within 150 mm of the underside of the unit in order to prevent the
invasion of water from the lower direction.
6 When installing the unit in a place frequently exposed to snow,
pay special attention to elevate the foundation as high as
possible.
7 If you install the unit on a building frame,
please install a waterproof plate (field
supply) (within 150 mm of the underside of
the unit) in order to avoid the drainwater
dripping. (See figure).

Selecting a location in cold climates

Value
10 m
To prevent exposure to wind, install the unit with its suction side
facing the wall.
Never install the unit at a site where the suction side may be
exposed directly to wind.
To prevent exposure to wind, install a baffle plate on the air
discharge side of the unit.
In heavy snowfall areas it is very important to select an
installation site where the snow will not affect the unit and to set
the outlet side at a right angle to the direction of the wind:
Strong wind
NOTICE
When operating the unit in a low outdoor ambient
temperature, be sure to follow the instructions described
below.
3
1 Construct a large canopy.
2 Construct a pedestal. Install the unit high enough off the
ground to prevent burying in snow.
3 Strong wind
4 Discharge air
Unit for air to water heat pump system
1
3
2
E(D/B)(H/L)Q011~016BB
4PW67904-1 – 01.2011