4 Installation
Installation manual
4
EKMBU EKMBUHCA9W1
Daikin Altherma low temperature monobloc backup heater
4P405547-1C – 2015.08
2×
2
Hang the backup heater onto the wall bracket.
3
Mark the position of the hole at the bottom of the backup
heater.
4
Remove the backup heater from the wall bracket.
5
Drill a hole for the bottom screw and insert a plug.
6
Hang the backup heater onto the wall bracket. Make sure it is
fixed properly.
7
Fix the bottom of the backup heater to the wall with an M5
screw.
4.3
Connecting the water piping
4.3.1
To connect the water piping to the backup
heater
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit. Make sure that the tightening torque does NOT
exceed 30 N•m.
1
Connect the water piping (field supply) to the water in- and
outlet of the backup heater.
b
a
a
Water inlet
b
Water outlet
NOTICE
When the backup heater is installed in a reversible system
(07CAV3), and below conditions are met (see
illustration), condensation may occur inside the backup
heater. To provide a bypass for the condensate, install
valve kit EKMBHBP1. Do NOT install any other valve kit
than EKMBHBP1. For installation instructions, refer to the
installer reference guide and the documentation delivered
with the valve kit.
Valve kit conditions
7
10
13
16
19
22
25
28
31
7
10
13
16
19
22
25
28
31
20
23
26
29
32
A (°C)
A (°C)
B (°C DB)
A
Leaving water evaporator temperature
B
Dry‑bulb temperature
Relative humidity 40%
Relative humidity 60%
Relative humidity 80%
Example:
Given are an ambient temperature of 25°C and a relative
humidity of 40%. If the leaving water evaporator temperature is
<12°C, condensation will occur.
Note:
See the psychrometric chart for more information.
Summary of Contents for EKMBUHCA3V3
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