Altherma EBHQ011AA6V3, Руководство по установке, Страница: 16 / 38

Installation manual
13
E(D/B)(H/L)Q011~0W1
Unit for air to water heat pump system
4PW51121-1C
Precautions on electrical wiring work
■
Use only copper wires.
■
For W1
Make sure to connect power supply cables in normal phase. If
connected in reverse phase, the remote controller indicates "
U1
"
and the equipment cannot operate. Change any two of the three
power supply cables (L1, L2, L3) to correct phase.
■
Never squeeze bundled cables into a unit.
■
Fix cables so that cables do not make contact with the pipes
(especially on high pressure side).
■
Secure the electrical wiring with cable ties as shown in figure 2
so that it does not come in contact with the piping, particularly
on the high-pressure side.
■
Make sure no external pressure is applied to the terminal
connectors.
■
When installing the earth leakage circuit breaker make sure that
it is compatible with the inverter (resistant to high frequency
electrical noise) to avoid unnecessary opening of the earth
leakage circuit breaker.
■
As this unit is equipped with an inverter, installing a phase
advancing capacitor not only will deteriorate power factor
improvement effect, but also may cause capacitor abnormal
heating accident due to high-frequency waves. Therefore, never
install a phase advancing capacitor.
Overview
The illustration below gives an overview of the required field wiring
between several parts of the installation. Refer also to
"Typical
application examples" on page 6 .
Internal wiring - Parts table
Refer to the internal wiring diagram supplied with the unit (on the
inside of the switch box cover). The abbreviations used are listed
below.
Door 1 compressor compartment and electrical parts
V3 models only
A1P.................. Main PCB
A2P.................. Inverter PCB
A3P.................. Noise filter PCB
A4P.................. PCB
BS1~BS4 ......... Push button switch
C1~C4 ............. Capacitor
DS1.................. DIP switch
E1H.................. Bottom plate heater
E1HC ............... Crankcase heater
F1U,F3U,F4U .. Fuse (T 6.3 A/250 V)
F6U.................. Fuse (T 5.0 A/250 V)
F7U,F8U .......... Fuse (F 1.0 A/250 V)
H1P~H7P ........ Orange LED service monitor (A2P)
H2P: prepare, test = flickering
H2P: malfunction detection = light up
HAP (A1P) ....... Green LED service monitor
K1R.................. Magnetic relay (Y1S)
K4R.................. Magnetic relay (E1HC)
K10R,K11R...... Magnetic relay
L1R .................. Reactor
M1C ................. Motor (compressor)
M1F ................. Motor (upper fan)
M2F ................. Motor (lower fan)
PS.................... Switching power supply
Q1DI ................ Field earth leakage protector (300 mA)
R1,R2 .............. Resistor
R1T.................. Thermistor (air)
R2T.................. Thermistor (discharge)
R3T.................. Thermistor (suction)
R4T.................. Thermistor (heat exchanger)
R5T.................. Thermistor (heat exchanger middle)
R6T.................. Thermistor (liquid)
R10T................ Thermistor (fin)
RC ................... Signal receiver circuit
S1NPH............. Pressure sensor
S1PH ............... High pressure switch
High voltage
To avoid electrical shock, make sure to disconnect the
power supply 1 minute or more before servicing the
electrical parts. Even after 1 minute, always measure the
voltage at the terminals of main circuit capacitors or
electrical parts and, before touching, make sure that those
voltages are 50 V DC or less.
NOTE The earth leakage circuit breaker must be a high-
speed type breaker of 30 mA (<0.1 s).
A Single power supply for
unit, backup heater and
booster heater F 3-way valve for domestic
hot water tank (field
supply, optional)
B Unit G 2-way valve for cooling
mode (field supply,
optional)
C Backup heater
D User interface H Domestic hot water tank
(optional)
E Room thermostat (field
supply, optional)
I Booster heater
(optional)
T
M
M
B
1 2
5 3
4
6
7
8
C
E
H
I
G
F
I
D
A 9 10
Item Description
AC/
DC
Required
number of
conductors Maximum
running
current
1 Power supply cable for unit AC 2+GND (V3)
4+GND (W1)
(a)
(a) Refer to nameplate on outdoor unit
2 Power supply cable for backup
heater AC 2+GND (V3)
3+GND (W1)
(b)
(b) See table under "Connection of the backup heater power supply" on page 15 .
3 Room thermostat cable AC 3 or 4 100 mA
(c)
(c) Minimum cable section 0.75 mm
2
4 User interface cable DC 2 100 mA
(c)
5 3-way valve control cable AC 2+GND 100 mA
(c)
6 2-way valve control cable AC 2+GND 100 mA
(c)
7 Booster heater power supply
and thermal protection cable AC 4+GND
(b)
8 Thermistor cable DC 2
(d)
(d) The thermistor and connection wire (12 m) are delivered with the domestic hot
water tank.
9 Booster heater power supply
cable AC 2+GND 13 A
10 Benefit kWh rate power supply
cable (voltage free contact) DC 2 100 mA
(c)