Preparing Electrical Wiring; Overview Of Electrical Connections For External And Internal Actuators; Installation; Opening The Units - Daikin Altherma EJHA04AAV3 Installation Manual
Hybrid monobloc heat pump module
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Also See for Altherma EJHA04AAV3:
- Installer's reference manual (112 pages) ,
- Operation manual (16 pages) ,
- User reference manual (60 pages)
Table of Contents
Minimum flow rate
A minimum flow rate must be guaranteed so that the outdoor unit
does not go in high pressure error (A5). For guidelines on flow rates,
see the tables in
"4.2.1 Water piping lengths and height difference
" on
page 8.
NOTICE
When circulation in each or certain space heating loops is
controlled by remotely controlled valves, it is important that
the minimum flow rate is guaranteed, even if all valves are
closed. In case the minimum flow rate cannot be reached,
the heat pump generates a high pressure error (A5).
4.3
Preparing electrical wiring
4.3.1
Overview of electrical connections for
external and internal actuators
NOTICE
Field wiring – Temperature. Make sure that all field wiring
withstands 90°C.
In case of system with *HY2KOMB28+32AA gas boiler
Connections to outdoor unit:
Item
Description
Power supply
1
Power supply for
outdoor unit
User interface
2
User interface
Optional equipment
3
Bottom plate heater
4
Outdoor ambient
temperature sensor
5
LAN adapter
Field supplied components
6
Domestic hot water
pump
(a)
Refer to name plate on outdoor unit.
(b)
Cable section 0.75 mm² till 1.25 mm²; maximum length:
200 m.
(c)
Part of optional equipment
(d)
Minimum cable section 0.75 mm².
(e)
Cable section 0.75 mm² till 1.25 mm²; maximum length:
200 m. These wires MUST be sheathed. Recommended
strip length: 6 mm.
NOTICE
More technical specifications of the different connections
are indicated on the inside of the outdoor unit.
Connections to *HY2KOMB28+32AA gas boiler:
Item
Description
Power supply
1
Power supply gas
boiler
Interconnection cable
2
Interconnection cable
between outdoor unit
and gas boiler
Optional equipment
EJHA04AAV3
Daikin Altherma hybrid monobloc – Heat pump module
4P530607-1B – 2018.10
Wires
Maximum
running
current
(a)
2+GND
(b)
2
(c)
2+GND
(d)
2
(e)
2
(d)
2+GND
Wires
Maximum
running
current
(a)
2+GND
(b)
2
Item
Description
3
3‑way valve
4
Domestic hot water
tank thermistor
5
Room thermostat/heat
pump convector
(a)
Refer to name plate on gas boiler.
(b)
Cable section 0.75 mm² till 1.25 mm²; maximum length:
200 m.
(c)
Cable section 0.75 mm² till 1.25 mm².
(d)
The thermistor and connection wire (11 m) are available as
option (EKTH3 or EKTH4).
NOTICE
More technical specifications of the different connections
are indicated on the inside of the gas boiler.
In case of system with third-party gas boiler
Connections to outdoor unit:
Item
Description
Power supply
1
Power supply for
outdoor unit
User interface
2
User interface
External pump + bivalent signal
3
External pump
4
Bivalent signal for third-
party gas boiler
Optional equipment
5
Bottom plate heater
6
Outdoor ambient
temperature sensor
7
LAN adapter
(a)
Refer to name plate on outdoor unit.
(b)
Cable section 0.75 mm² till 1.25 mm²; maximum length:
200 m.
(c)
The external pump is part of mandatory option
EKADDONJH; the 2 external pump cables (PWM signal
and power supply) are part of mandatory option
EKADDONJH2.
(d)
Minimum cable section 0.75 mm².
(e)
Part of optional equipment
(f)
Cable section 0.75 mm² till 1.25 mm²; maximum length:
200 m. These wires MUST be sheathed. Recommended
strip length: 6 mm.
NOTICE
More technical specifications of the different connections
are indicated on the inside of the outdoor unit.
5
Installation
5.1
Opening the units
5.1.1
To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
5 Installation
Wires
Maximum
running
current
(c)
3
100 mA
(d)
2
(c)
2
100 mA
Wires
Maximum
running
current
(a)
2+GND
(b)
2
(c)
2 and 2+GND
(d)
2
(e)
2+GND
(d)
2
(f)
2
Installation manual
9
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