5
|
Application guidelines
Installer reference guide
49
EPRA14~W1 + ETVH/9W(G)
Daikin Altherma 3 H HT F
4P587502-1A – 2020.01
Exception
▪
You can use a second power meter if:
-
The power range of one meter is insufficient.
-
The electrical meter cannot easily be installed in the electrical cabinet.
-
230 V and 400 V three-phase grids are combined (very uncommon), because of
technical limitations of power meters.
▪
Connection and setup:
-
Connect the second power meter to X5M/3 and X5M/4. See
-
In the software the power consumption data of both meters is added so you do
NOT have to set which meter covers which power consumption. You only need
to set the number of pulses of each power meter.
▪
See
"5.5.4 Preferential kWh rate power supply"
49] for an example with two
power meters.
5.5.4 Preferential kWh rate power supply
General rule
▪
Power meter 1: Measures the outdoor unit.
▪
Power meter 2: Measures the rest (i.e. indoor unit and backup heater).
Setup
▪
Connect power meter 1 to X5M/5 and X5M/6.
▪
Connect power meter 2 to X5M/3 and X5M/4.
See
"8.3.4 To connect the electricity meters"
107].
Power meter types
▪
Power meter 1: Single- or three-phase power meter according to the power
supply of the outdoor unit.
▪
Power meter 2:
-
In case of a single-phase backup heater configuration, use a single-phase
power meter.
-
In other cases, use a three-phase power meter.
Example
Single-phase outdoor unit with a three-phase backup heater:
e
f
e
i
h
g
A
B
b
a
d
c
580
1 50
0
0
580
1 50
0
0
A
Outdoor unit
B
Indoor unit
C
DHW tank
Summary of Contents for Altherma 3 H HT EPRA14DAW1
Page 258: ......
Page 259: ......
Page 260: ...4P587502 1A 2020 01 Copyright 2019 Daikin Verantwortung f r Energie und Umwelt...
