Installation manual
2
ERX125~250A7W1B
Inverter condensing unit
4PW30064-1D
1.
I
NTRODUCTION
1.1.
Combination
The air conditioning unit can be installed in the following range.
■
Always use appropriate units compatible with R410A.
To learn which models of air handling units are compatible with
R410A, refer to the product catalogs.
■
The manufacturer of this outdoor unit has limited responsibility
for total capacity of the system because performance is
determined by the total system. The discharge air may fluctuate
depending on selected air handling unit and depending on the
installation configuration.
■
Both air handling unit (evaporator) and digital controller software
and hardware are field supply and are to be selected by the
installer. Refer to the manual "Option kit for combination of
Daikin condensing units with field supplied evaporators" for
more details.
Recommended temperature setting on the field supplied
controller is between 16°C and 25°C.
■
Refer to the installation and operation manual of the control box
or to the Technical Data for allowed heat exchanger
combinations.
1.2.
Standard supplied accessories
See location 1 in
for reference to where following
accessories are supplied with the unit.
See location 2 in
for reference to where following
accessories are supplied with the unit.
1.3.
Technical and Electrical specifications
Refer to the Engineering Data Book for the complete list of
specifications.
2.
M
AIN
COMPONENTS
For main components and function of the main components, refer to
the Engineering Data Book.
3.
S
ELECTING
INSTALLATION
SITE
Obtain the customer's permission before installing.
The inverter units should be installed in a location that meets the
following requirements:
1
The foundation is strong enough to support the weight of the unit
and the floor is flat to prevent vibration and noise generation.
2
The space around the unit is adequate for servicing and the
minimum space for air inlet and air outlet is available. (Refer to
and choose one of the possibilities).
■
In case of an installation site where sides A+B+C+D have
obstacles, the wall heights of sides A+C have no impact on
service space dimensions. Refer to
heights of sides B+D on service space dimensions.
■
In case of an installation site where only the sides A+B have
obstacles, the wall heights have no influence on any
indicated service space dimensions.
3
Make sure that there is no danger of fire due to leakage of
inflammable gas.
4
Ensure that water cannot cause any damage to the location in
case it drips out the unit (e.g. in case of a blocked drain pipe).
5
The piping length may not exceed the allowable piping length
(see
"4 Piping length restrictions" on page 5
).
6
Select the location of the unit in such a way that neither the
discharged air nor the sound generated by the unit disturbs
anyone.
7
Make sure that the air inlet and outlet of the unit are not
positioned towards the main wind direction. Frontal wind will
disturb the operation of the unit. If necessary, use a windscreen
to block the wind.
8
Do not install or operate the unit on locations where air contains
high levels of salt, like e.g. in the vicinity of oceans. (Refer for
further information to the engineering databook).
9
During installation, avoid the possibility that anybody can climb
on the unit or place objects on the unit.
Falls may result in injury.
10
When installing the unit in a small room, take measures in order
to keep the refrigerant concentration from exceeding allowable
safety limits in the event of a refrigerant leak.
Installation manual
1
Operation manual
1
Item
Quantity
Gas side accessory pipe
1
Gas side accessory pipe
1
Liquid side accessory pipe
1
Liquid side accessory pipe
1
■
Make sure to provide for adequate measures in order
to prevent that the outdoor unit be used as a shelter
by small animals.
■
Small animals making contact with electrical parts can
cause malfunctions, smoke or fire. Please instruct the
customer to keep the area around the unit clean.
If not, the unit may fall over and cause damage or
injury.
A B C D
Sides along the installation site with obstacles
Suction side
NOTE
The service space dimensions in
based on cooling operation at 35°C.
Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.
