3 Preparation
Installation manual
3
EK2CB07CAV3
Daikin Altherma low temperature monobloc option box
4P4055461 – 2015.03
3
Preparation
3.1
Preparing installation site
3.1.1
Installation site requirements of the
option box
▪ Mind the measurement guidelines:
Maximum distance between the option box and
control box EKCB07CAV3
3 m
▪ Mind the following spacing installation guidelines:
100
50
50
600
50
50
(mm)
▪ The option box is designed to be wallmounted in indoor locations
only. Make sure the installation surface is a flat and vertical non
combustible wall.
▪ The option box is designed to operate in ambient temperatures
ranging from 5~35°C.
3.2
Preparing electrical wiring
3.2.1
Overview of electrical connections for
external and internal actuators
Item
Description
Wires
Maximum
running
current
Power supply
1
Power supply for option
box
2+GND
(a)
Interconnection cable
2
Interconnection cable
to control box
3 (max 3 m)
(b)
Optional equipment
3
Remote indoor sensor
2
(b)
Fieldsupplied components
4
Electric meter
2 (per meter)
(b)
5
Power consumption
digital inputs
2 (per input
signal)
(b)
6
Alarm output
2
(b)
7
Space cooling/heating
ON/OFF output
2
(b)
8
Changeover to external
heat source
2
(b)
(a)
Cable section 2.5 mm².
(b)
Minimum cable section 0.75 mm².
NOTICE
More technical specifications of the different connections
are indicated on the inside of the option box.
4
Installation
4.1
Opening the units
4.1.1
To open the option box
1
1
2
2×
WARNING
The screws are delivered with toothed lock washers.
ALWAYS use toothed lock washers, also when the screws
need to be replaced. Failure to follow this warning may
result in electric shock.
INFORMATION
Do NOT remove the plugs from the front plate of the option
box.
4.2
Mounting the option box
4.2.1
To install the option box
1
Remove the front plate.
2
Hold the back plate against the wall and mark the fixation points
(2 on the top and 2 at the bottom).
NOTICE
Make sure that the marks (2 by 2) are completely level and
that their dimensions correspond to the figure below.
318 mm
310 mm
3
Drill 4 holes and install 4 plugs (suitable for M5).
4
Put the screws in the top plugs and hang the box on the
screws.
5
Put the screws in the bottom plugs.
6
Fix the 4 screws firmly.
