Overview: Installation; Opening The Units; About Opening The Units; To Open The Indoor Unit - Daikin EGSQH10S18AA9W Installer's Reference Manual

INFORMATION
The following illustration is an example and might NOT
match your system layout.
a
20 6
15 12
13
16
14
14
17
19
18
a Indoor unit
Item Description
Indoor unit power supply
1 Power supply for E1
and E3
2 Power supply for E2
4 Preferential kWh rate
power supply (voltage
free contact)
5 Normal kWh rate power
supply
User interface
6 User interface
Optional equipment
12 Room thermostat
13 Outdoor ambient
temperature sensor
14 Indoor ambient
temperature sensor
15 Heat pump convector
Field supplied components
16 Shut-off valve
17 Electricity meter
18 Domestic hot water
pump
19 Alarm output
20 Changeover to external
heat source control
22 Power consumption
digital inputs
(a) Refer to name plate on unit.
(b) Minimum cable section 0.75 mm².
(c) Cable section 2.5 mm².
(d) Cable section 0.75 mm² till 1.25 mm²; maximum length:
50 m. Voltage-free contact shall ensure the minimum
applicable load of 15 V DC, 10 mA.
(e) Cable section 0.75 mm² till 1.25 mm²; maximum length:
500 m. Applicable for both single user interface and dual
use interface connection.
NOTICE
More technical specifications of the different connections
are indicated on the inside of the indoor unit.
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351748-1D – 2016.02
M
Wires Maximum
running
current
(a)
3+N + GND
(c)
2
(d)
2
2 6.3 A
(e)
2
(b)
3 or 4 100 mA
(b)
2
(b)
2
(b)
4 100 mA
(b)
2 100 mA
(b)
2 (per meter)
(b)
2
(b)
2
(b)
2
(b)
2 (per input
signal)
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:
1 Mounting the indoor unit.
2 Connecting the brine piping.
3 Connecting the water piping.
4 Connecting the electrical wiring.
5 Finishing the indoor installation.
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 indoor unit

1 Loosen and remove the screws at the bottom of the unit.
2 Push on the button at the bottom of the front plate.
WARNING: Sharp edges
Take the front plate on the upper part instead of the lower
part. Watch your fingers, there are sharp edges on the
lower part of the front plate.
3 Slide the front panel of the unit downwards and remove it.
CAUTION
The front panel is heavy. Be careful NOT to jam your
fingers when opening or closing the unit.
4 Loosen and remove the 4 screws that fix the top panel.
5 Remove the top panel from the unit.
7 Installation
Installer reference guide
23