Installation manual
13
ERSQ+ERRQ011~Y1
Outdoor unit for air to water heat pump
4PW49635-1A
M2F ........................Motor (fan) (lower)
PS ..........................Switching power supply
Q1DI.......................Field earth leakage breaker (300 mA)
R1,R2 .....................Resistor
R1T ........................Thermistor (air)
R2T ........................Thermistor (discharge)
R2T ............... #......Thermistor (M1C discharge)
R3T ........................Thermistor (suction 1)
R4T ................*......Thermistor (heat exchanger)
R4T ............... #......Thermistor (subcooling heat exchanger)
R5T ........................Thermistor (suction 2)
R6T ................*......Thermistor (subcooling heat exchanger)
R6T ............... #......Thermistor (heat exchanger)
R7T ........................Thermistor (liquid pipe 1)
R8T ........................Thermistor (liquid pipe 2)
R9T ............... #......Thermistor (power module)
S1NPH ...................Pressure sensor (high)
S1NPL....................Pressure sensor (low)
S1PH......................Pressure switch (high)
V1R ........................Power module
V2R ................*......Diode module
V2R ............... #......Power module
V3R ........................Diode module
V1T.................*......IGBT (Insulated Gate Bipolar Transistor)
X1M........................Terminal strip (power supply)
X2M........................Terminal strip (control)
Y1E ........................Electronic expansion valve (main)
Y3E ........................Electronic expansion valve (subcool)
Y1S ........................Solenoid valve (4 way valve)
Y2S ........................Solenoid valve (hot gas)
Y3S ........................Solenoid valve (unload circuit)
Z1C~Z8C........*......Noise filter (ferrite core)
Z1C~Z7C....... #......Noise filter (ferrite core)
Z1F~Z4F ........*......Noise filter
Z1F~Z3F ....... #......Noise filter
Parts table legend
Notes
9.3.
System overview of field wiring
(See figure 9)
9.4.
Precautions on wiring of power supply and
inter-unit wiring
■
Let the power wire (including ground wire and if applicable, the
bottom plate heater wire) go through the power outlet port on
either the front, side or back of the outdoor unit.
■
Let the transmission wires go through the cable outlet port, pipe
outlet port or knock out hole on either the front, side or back of
the outdoor unit.
(See figure 8)
.
Precautions when knocking out knockout holes
■
To punch a knock hole, hit on it with a hammer.
■
After knocking out the holes, we recommend you paint the
edges and areas around the edges using the repair paint to
prevent rusting.
■
When passing electrical wiring through the knock holes, remove
any burrs from the knock holes and wrap the wiring with
protective tape to prevent damage.
■
If there is any possibility that small animals enter the system
through the knock holes, plug the holes with packing materials
(to be prepared on-site).
*
For V1 models only
#
For Y1 models only
1
This wiring diagram only applies to the outdoor unit.
4
Refer to the wiring diagram sticker (on the back of the
front plate) for instructions on how to use BS1~BS5 and
DS1-1, DS1-2 switches.
5
Do not operate the unit by short-circuiting protection
device S1PH.
7
Refer to the installation manual for connection wiring to
indoor-outdoor transmission F1-F2.
1
Earth leakage breaker
2
Field fuse
3
Remote controller
A
Rear direction
B
Lateral direction
C
Front direction
1
Power terminal block (X1M)
2
Control wiring between units
3
Power cable with ground wire. (Keep proper distance between
power cable and control wiring).
4
Clamp (field supply)
5
Stop valve mounting plate
6
Power cable
7
Ground cable (yellow/green)
8
Fix the control wiring with the clamp
9
Control terminal block (X2M)
10
Interconnection cable for bottom plate heater (ERRQ only)
1
Knockout hole
2
Burr
3
Packing materials
2
3
1
Summary of Contents for ERSQ011AAV1
Page 22: ...4PW49635 1A Copyright Daikin...
