RDZ PDC-GTM-RES Installation instructions

FAG0FC002BZ.00
03/2023
Chiller & Heat Pumps
PDC-GTM-RES
INSTALLATION
AND OWNER’S MANUAL
Supplementary Electric Heater for Monoblock Heat Pump
Green Tech series - R32 5-9 kW
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Thank you very much for purchasing our product.
Before using the unit, please read this manual
carefully and keep it for future reference.
INSTALLATION
PDC-GTM-RES
INSTALLATION
AND OWNER’S
MANUAL

2
INSTALLATION & OWNER’S MANUAL - MONOBLOC BACKUP HEATER
INSTALLATION FITTINGS
NAME SHAPE QUANTITY
Installation & owner’s manual
(this book) 1
Mounting bracket 1
Mounting bracket 1
M8 expansion screws 3
M4 screws 2
Maximum distance between
the backup heater and the
external drive
5m (If you exceed this
distance, you need an
additional water pump)
Operating range (Internal
installation) 5~35 °C
GB
1.0 ABOUT THE DOCUMENTATION
This document is prepared for authorised installers,
read this document carefully before installation. keep
this manual in a handy place for future reference.
Improper installation or attachment of equipment
or accessories could result in electrical shock, short
circuit, leaks, re or other damage to the equipment.
All activities described in this manual shall be carried
out by a licensed technician.
Be sure to wear adequate personal protection
equipment(protection gloves, safety glasses) when
performing installation, maintenance or service to
the unit.
If unsure of installation procedure or use, always
contact your dealer for advice and information.
The unit described here is designed for indoor
installation.
• Keep in mind the guidelines for the measures:
1 Air purge
2 Backup heater
3 Water IN connection
4 Water OUT connection
5 Thermal protector
6 Circuit breaker
7 Terminal block
8 Terminal block
9 Terminal block
10 Backup heater contactor
2. ABOUT THE BOX
2.1 Backup heater
2.1.1 Structure of the backup heater
1) Remove the front cover of the backup heater.
3. PREPARATION
3.1 Preparing installation site
3 .1.1 Installation site requirements of
the backup heater
3
1
4
2
7
5
6
8
9
10

3
Item Description Wires
Maximum
running
current
Interconnection cable
1
Interconnection cable
between backup heater
kit and outdoor unit
40.2A
(a)Minimum cable section: 0.75 mm2;
maximum length: 5 m.
Backup
heater
Power
supply
Required number
of conductors
3 kW 220 - 240V 3 Wires
Minimum cable section: 4 mm2;
maximum length: 5 m.
INSTALLATION & OWNER’S MANUAL - MONOBLOC BACKUP HEATER
• Mind the following spacing installation guidelines:
• The backup heater is designed to be wall mounted in
indoor locations only.
Make sure the installation surface is a at and vertical
noncombustible wall.
3.2 Preparing water piping
When installing the backup heater in the system,
make sure the required minimum water ow rate is
guaranteed at all times.
For more information, refer to the installation manual
of the outdoor unit.
Unit mm
>500
75 70 105
280 220 170
140
Ø11
30X11
20
35
3.3 Preparing electrical wiring
3.3.1 Overview of electrical
connections for external and internal
actuators
More technical specications of the different
connections are indicated on the inside of the
backup heater.
NOTICE

4
2
4 INSTALLATION
4.1 Opening the units
4.1.1 To open the backup heater
4.2 Mounting the backup heater
4.2.1 To install the backup heater
1) Fix the wall bracket to the wall with M8 screws.
Mark the position of the hole at the bottom of the
backup heater.
Drill a hole for the bottom screw and insert a plug.
2) Fix the wall bracket to the backup heater with M4
screws.
3

5
3) Hang the backup heater onto the wall bracket. Make
sure it is xed properly.
4) Fix the bottom of the backup heater to the wall with
an M8 expansion screws.
4.3 Connecting the water piping
4.3.1 To connect the water piping
4.4 Connecting the electrical wiring
4.4.1 To connect the electrical wiring
on the backup heater
1) Connect the water piping (eld supply) to the water
in and outlet of the backup heater.
3Water inlet
4Water outlet
Do NOT use excessive force when connecting
the piping. Deformation of the piping can cause
malfunctioning of the unit.
NOTICE
Inside the backup heater, an automatic air purge valve
isinstalled. During operation make sure the automatic
air purge valve is open(at least 2 circles),remove air
in the circuit as much as possible, air present in the
water circuit migth cause malfunctioning of the
backup heater.
INFORMATION
The function of the 3-way valve is to switch the
water pipe. When we use the heat mode or hot
water mode,the water ows AB to A; when we use
the cool mode,the water ows AB to B.
When the outdoor unit is in cool mode, condensation
may occur. Therefore provide a bypass by installing a
valve kit to the water inlet of the backup heater. For
instructions, refer to the installer reference guide. Do
NOT install any other valve kit than the one specied
in the installer reference guide.
NOTICE
3 4
A
B
AB
• The power supply should be an independent
circuit with rated voltage.
• Power supply circuit should be earthed
effectively.
The wiring must be performed by professional
technicians in accordance with national wiring
regulations and this circuit diagram.
• An all-pole disconnection device which has at
least 3mm separation distance in all pole and a
residual current device(RCD)with the rating of
above 10mA shall be incorporated in the xed
wiring according to the national rule.
• Set the electric leakage protector electric
technical standards of the state.
• The power cord and the signal cord and properly
without mutual interference connection pipe or
valve
• After wire connection, check it again
correctness before poweron.
• If you want to rotate the electric box, please
release the iron tie on the top of the E-box to
avoid sensor’s connection loosing.
CAUTION
Routing Possible cables
(depends on the installed options)
a
High
voltage
• Main power supply
• Backup heater kit connection
(to outdoor unit)
b
Low
voltage
• Backup heater kit sensor
(interconnection with outdoor unit)

6
1) Insert the wiring from the bottom of the backup
heater.
2) Inside the backup heater, route the wiring as follows:
3) Fix the wiring with cable ties to the cable tie
mountings.
For the power supply, connect 3 wires to XT5/L+N+
Power Supply Wires
aHigh voltage wiring
bLow voltage wiring
4.4.2 To connect the backup heater
power supply
a b
The distance between the high voltage and low
voltage cables should be at least 25 mm.
NOTICE
To guarantee the unit is completely earthed,
always connect the backup heater power supply
and the earth cable.
CAUTION
If a tank with a builtin electrical booster heater is
part of the system, use a dedicated power circuit
for the backup heater and booster heater.
NEVER use a power circuit shared by another
appliance. This power circuit must be protected
with the required safety devices according to the
applicable legislation.
WARNING
L N
XT5

7
L N
XT9
XT20 31(H1)
39(N)
4.4.3 To connect the backup heater kit to the outdoor unit
For the sensor, connect 2 wires between backup heater terminals XT20M/5+6 and control box connector T1.
For the connection with the control box, connect 3 wires between backup heater terminals XT20/1+2 and control
box terminals XT9/31+39.
5 STARTING UP THE SYSTEM
For instructions on how to congure and commission the system, and hand it over to the user, refer to the installation
manual of the outdoor unit.
6 MAIN PARAMETERS
6.1 Main parameters 6.2 Water pressure drop
Indoor Unit
Fix the cable with cable ties to the cable tie mountings.
Outdoor Unit
• For details about the connections, refer to the wiring diagram.
• Use a multicore cable.
INFORMATION
MAIN PARAMETERS
Model BH30A
capacity 3.0 kW
Rated current 13A
Power supply 220-240V~ 50Hz
Dimensions Unit 780×220×280mm
Packed unit 890×325×385mm
Weight Unit 18.5kg
Packed unit 24kg
Operation range 5~35°C
Pipe diameter Water inlet/outlet G1”
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0.00 0.200.40 0.600.81 1.001.21 1.401.6
Flow rate [m3/h]
Water Drop [kPa]

16110600000085 V3.0

FAG0FC002BZ.00
03/2023
Chiller & Heat Pumps
PDC-GTM-RES
INSTALLATION
AND OWNER’S MANUAL
Supplementary Electric Heater for Monoblock Heat Pump
Green Tech series - R32 5-9 kW
CLICK | SCAN
qr.rdz.it/?qr=P642