7 Installation
Installer reference guide
31
EKCB
EK2CB EKMBU EKMBUHCA9W1
Daikin Altherma low temperature monobloc
4P405544-1 – 2015.03
Item
Description
Wires
Maximum
running
current
21
Interconnection cable
between backup heater
kit and control box
6 (*3V)
7 (*9W)
(a)
(a)
Minimum cable section 0.75 mm²; maximum length: 10 m.
Backup heater
Power supply
Required number of
conductors
EKMBUHCA3V3 1× 230 V
2+GND
EKMBUHCA9W1 1× 230 V
2+GND+2 bridges
3× 400 V
4+GND
Option box
Item
Description
Wires
Maximum
running
current
Power supply
22
Power supply for option
box
2+GND
(a)
Interconnection cable
23
Interconnection cable
between option box
and control box
3 (max 3 m)
(b)
Optional equipment
24
Remote indoor sensor
2
(b)
Field-supplied components
25
Electric meter
2 (per meter)
(b)
26
Power consumption
digital inputs
2 (per input
signal)
(b)
27
Alarm output
2
(b)
28
Space cooling/heating
ON/OFF output
2
(b)
29
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 units
(outdoor unit, control box, option box and backup
heater).
▪ For how to connect the electrical wiring to the outdoor
unit (and if part of the system, the control box, option
box, and backup heater), refer to
"7.8 Connecting the
electrical wiring" on page 39
.
7
Installation
7.1
Overview: Installation
This chapter describes what you have to do and know on-site to
install the system.
Typical workflow
Installation typically consists of the following stages:
▪ Mounting the outdoor unit
▪ Mounting the control box (if applicable)
▪ Mounting the backup heater (if applicable)
▪ Connecting the water piping
▪ Connecting the electrical wiring
▪ Finishing the installation of the outdoor unit
▪ Finishing the installation of the control box (if applicable)
▪ Finishing the installation of the backup heater (if applicable)
7.2
Opening the units
7.2.1
About opening the units
At certain times, you have to open the unit.
Example:
▪ When connecting the electrical wiring
▪ When maintaining or servicing the unit
DANGER: RISK OF ELECTROCUTION
Do NOT leave the unit unattended when the service cover
is removed.
7.2.2
To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
8×
1
2
7.2.3
To open the switch box cover of the
outdoor unit
3×
Summary of Contents for EK2CB07CAV3
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