Installation and Operating Instructions
GDH-Eco Air Split series
Table of contents
Safty instructions Page 3
Components Page 4
Connection Indoor and Outdoor Unit Page 5
House Installation Page 7
Hydraulic Connection Page 8
Dimensions Page 9
Electrical Wire Diagram Page 10
Installation Procedure Page 11
Controller Page 12
Controller – setup – operation Page 13
Controller – setup – timer Page 14
Parameters definations Page 15
Parameters definations and settings Page 16
Error list Page 17
Maintenance Page 18
GDH-50Eco Air Split
Technical data – characteristic curve Page 19
Technical data Page 20
GDH-70Eco Air Split
Technical data – characteristic curve Page 21
Technical data Page 22
GDH-120Eco Air Split
Technical data – characteristic curve Page 23
Technical data Page 24
EC Declaration of Conformity Page 25
Safety instructions
• This unit should not be installed in any area where flammable liquids or
vapors may be present. Do not store or use gasoline or other combustible
materials or liquids near or adjacent to this water heater.
• Do not use this unit if it has been dropped or damaged in any way.
• Check the rating plate on the unit before installation to make certain the
voltage shown is the same as the electricity supply to the water heater.
• The unit must be connected only to a properly grounded electrical supply. Do
not fail to properly ground the unit.
• This unit should only be serviced by qualified service personnel.
• Always shut off electric power before making unit connections or removing
any panels and be extremely careful to avoid injury.
• Components may have sharp edges or protrusions which can cut you.
• Tubing and compressor contain high pressure refrigerant and they should not
be exposed to high temperature or be punctured.
• Water temperature over 52 °C (125 °f) can cause severe burns or death from
scalding. Feel the water before bathing or showering. Children, disabled, and
elderly are at highest risk of being scalded.
• Tampering with the thermostat, heater, elements or electrical connections is
dangerous and may result in serious injury. Only properly trained, qualified
service personnel should service these components. Do not attempt to modify
or change this water heater in any way.
3
Components
4
Connection Indoor and Outdoor Unit
5
House Installation
7
Hydraulic Connection
8
Dimensions
• The Heat Pump Water Heater should never be stored or installed on its side.
Upright transportation is recommended. If it becomes necessary to transport
the water heater on its side, the manufacturer recommends that the unit be in
the upright position for a minimum of two hours prior to operation. Failure to
follow these instructions may result in damage to the water heater.
• After removing the unit from the crate/carton, immediately remove the
panels and inspect for any damage that might have occurred during shipment.
Report concealed damage immediately to the transportation company and
request inspection.
The electric power source must be the same voltage and phase as shown on
the rating plate. Line and low voltage wiring must be done in accordance with
local codes or the national electric code.
9
Electrical Wire Diagram
10
Installation Procedure
• The heat pump should be mounted level on a vibration absorbing pad slightly
larger
• than the base to provide isolation between the unit and floor
• Connect the heat pump with your water pipes (DN25) – inlet and outlet water
• Install a circulation water pump direct after the outlet water
• Connect the power wire on 220 Volt. Do not forget to connect on earth
• Connect the controller panel with the telephone wire
• Put the water tank sensor into your water tank
• If the heat pump installed into south side, please use the second outdoor
temperature sensor. Change the existent outdoor temperature sensor. The
new one is to install and to put it into the north side. The outdoor temperature
sensor is not to install into the sun.
Compressor Time Delay: Be aware there is a 3 minute time delay before the
compressor will start once the unit is turned on or whenever it restarts.
Connection pipe size:
DN25 = GDH70 Air Split – Inside Unit
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Controller
1 On / Off 11 Latest water temperature / Error Code
2 Up 12 Not available
3 Down 13 Return water
4 Setting enter 14 Fan working
5 Timer 15 Circulate water pump working
6 Not available 16 Cooling mode
7 Time 17 Heating mode
8 Timer on / off 18 Not available
9 Locker 19 Electric assistant heater working
10 Water temperature 20 Defrosting
21 Set water temperature
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Controller – setup – operation
1. Press „power“
2. Setting the water temperature by „up“ or „down“ keys
3. Setting the inlet and outlet temperature by „setting“ key – press one time –
than please press the „setting“ key for 8 seconds.
Press „settings“ again and again until you have choose the following
parameters:
Please change the settings L3 (oulet water temperature) and L6 (inlet water
temperature) into your requirements.
4. If you have set up your requirements, please press „power“ to start the heat
pump.
5. You can change into heating (sun) and cooling (snow flake) mode by press the
key „up“ for 8 seconds.
6. Your heat pump is set up and start to work – the compressor start by a delay
of about 3 minutes.
Attention:
If your controller locked you have to press the „power“ key for 8 seconds.
The controller lock by itself if you do not use it.
It is not nessescary to change other parameters – only L3 and L6 for the outlet
and inlet water temperature. Also the water temperature in the display by „up“
and „down“ keys.
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Controller – setup - timer
1. Press „timer“ for 11 seconds. You hear after 3 seconds the first buzzer and
after 8 seconds the second buzzer
2. Press „up“ or „down“ keys to set up the time. You confirm by press „setting“
You can set up two different timers.
Example:
Timer 01
Start 08.00 Stop 13.00
Timer 02
Start 15.00 Stop 24.00
Set up the two timers:
1. Press „timer“ one time
2. Press „up“ or „down“ keys to set up the timer. You confirm by press „setting“
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Parameter definations
15
SHOW: touch function – inquiry – touch again – quit.
Code
Parameter
A1 / B1
Fan coil temperature
A2 / B2
Return gas temperature
A3 / B3
Exhaust temperature
A4 / B4
Enviroment temperature
A5 / B5
Outlet water temperature
A6 / B6
Return water temperature
A7 / B7
00
A8 / B8
Compressor current
A9 / B9
Electric expansion valve angle
This parameters show the settings of L1 – L7
Parameter definations and settings
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SETTINGS: Touch function over 3 seconds – hear a sound – off your hand – enter your settings.
Code
Parameter
Range
Standard setting
/ / /
Water tank temperature setting
20 °C – 60 °C
35 °C / 45 °C / 50 °C / 55 °C
L1
Dummy temperature
0 °C – 15 °C
00 °C
L2
Compressor start & set temperature
3 °C – 18 °C
05 °C
L3
Set outlet water temperature
35 °C – 99 °C
35 °C / 45 °C / 50 °C / 55 °C
L4
Maximal water tank temperature
30 °C – 99 °C
60 °C
L5
Electric start temperature
0 °C – 35 °C
00 °C
(0 °C mean no electric assistant heater)
L6
Return water temperture
30 °C – 65 °C
30 °C / 40 °C / 45 °C / 50 °C
L7
Supplement water temperature
20 °C – 60 °C
20 °C
(20 °C mean no supplemmet)
L8
Compressor current
0 – 48A
0
H1
Defrosting period
20 min. – 99 min.
35 min.
H2
Permission temperature for defrosting
-15 °C – 1 °C
-01 °C
H3
Defrosting time
5 – 20 min.
10 min.
H4
Defrosting temperature
1 °C – 40 °C
20 °C
P1
Electric expansion valve adjust period
20 – 180 sec.
30 sec.
P2
Difference temperature between A1 and A2
-8 °C – 15 °C
00 °C
P3
Pemission for exhaust temperature protection
70 °C – 135 °C
95 °C
P4
Electric expansion valve open angel
when defrosting
6 – 55 degree
50 degree
P5
Electric expansion valve minimal open angel
6 – 30degree
15 degree
Error list
17
Code
Reason
01E
Mistake on phase
02E
Missing phase
03E
Water flow switch
05E
Water pump – pressure or connection
06E
Low pressure – leckage/refrigerant/dirty
07E
-
08E
-
09E
Communicate
11E
Limit time pin code
12E
High exhaust temperature /
13E
-
15E
Water tank sensor broken
16E
Fan coil sensor broken
17E
-
18E
Exhaust sensor broken
19E
-
21E
Enviroment sensor broken
22E
Return water sensor broken
25E
Water level switch broken
27E
Outlet water sensor broken
28E
Return gas sensor broken
29E
Water pressure sensor broken
Maintenance
Please clean the heat pump all the time. The evaporator has to be free of leaves and
other things. If you clean the heat pump please do it by off mode.
After the European enviroments requirements proof the the heat pump for any
leckage by a professional.
We recommend you to maintenance the heat pump by a professional minimum one
time per year. It is to proof after gas leckage, oil level of compressor and low/high
pressure.
Check list
• Leckage of refrigerant
• Oil level of compressor (please change it regulary by professional)
• Low and high pressure
• Electric wires
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Technical Data GDH50-Air-Split
Outlet water max. temp. (°C) A10/W35 7,2 kW / COP 3,8
Outlet water max. temp. (°C) A7/W35 6,3 kW / COP 3,5
Outlet water max. temp. (°C) A2/W35 5,2 kW / COP 3,0
Outlet water max. temp. (°C) A-7/W35 4,1 kW / COP 2,3
Starting current 18 A
Operating current 17,2 A
Operating voltage 220V 1NAC 50 Hz
Compressor Scroll
Max. water flow 2.500 l/h
Fuse 1 x C 25 A
Refrigerant quantity (R407c) 2,4 kg
Outdoor Unit
High 900 mm
Width 950 mm
Depth 420 mm
Weight 45 kg
Sound level (distance 1 m) 54 dB
Indoor Unit
High 500 mm
Width 450 mm
Depth 280 mm
Weight 25 kg
Sound level (distance 1 m) 26 dB
Subject to modification. Images for demonstration.
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21
Technical Data GDH70-Air-Split
Outlet water max. temp. (°C) A10/W35 9,2 kW / COP 3,8
Outlet water max. temp. (°C) A7/W35 8,5 kW / COP 3,5
Outlet water max. temp. (°C) A2/W35 7,1 kW / COP 3,0
Outlet water max. temp. (°C) A-7/W35 6,3 kW / COP 2,3
Starting current 20 A
Operating current 19,2 A
Operating voltage 220V 1NAC 50 Hz
Compressor Scroll
Max. water flow 2.500 l/h
Fuse 1 x C 25 A
Refrigerant quantity (R407c) 2,9 kg
Outdoor Unit
High 900 mm
Width 950 mm
Depth 420 mm
Weight 55 kg
Sound level (distance 1 m) 54 dB
Indoor Unit
High 500 mm
Width 450 mm
Depth 280 mm
Weight 28 kg
Sound level (distance 1 m) 26 dB
Subject to modification. Images for demonstration.
22
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Technical Data GDH120-Air-Split
Outlet water max. temp. (°C) A10/W35 15,9 kW / COP 3,6
Outlet water max. temp. (°C) A7/W35 14,8 kW / COP 3,3
Outlet water max. temp. (°C) A2/W35 12,1 kW / COP 3,0
Outlet water max. temp. (°C) A-7/W35 9,7 kW / COP 2,2
Starting current 22 A
Operating current 20,2 A
Operating voltage 220V 1NAC 50 Hz
Compressor Scroll
Max. water flow 2.500 l/h
Fuse 1 x C 25 A
Refrigerant quantity (R407c) 3,2 kg
Outdoor Unit
High 900 mm
Width 950 mm
Depth 420 mm
Weight 55 kg
Sound level (distance 1 m) 54 dB
Indoor Unit
High 1.400 mm
Width 950 mm
Depth 420 mm
Weight 28 kg
Sound level (distance 1 m) 26 dB
Subject to modification. Images for demonstration.
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EC Declaration of Conformity
The undersigned GDH Energy Co., Ltd.
No. 340 Dongjiang Road, Zhongye Building,
Free Trade Zone, GETDD,
510730 Guangzhou, China
hereby confirm that the design and construction of the product(s) listes below, in the version(s) placed
on the market by us, conform to the relevant requirements of the applicable EC directives.
This declaration becomes invalidated if any modifications are made to product(s) without our prior
authorization.
Designation EC Directives
Air-to-water heat pumps EC Low Voltage Directive for outdoor installation, containing R407c
EC EMC Directive
Pressure Equipment Directive
Typ(e): Harmonized EB Standards:
GDH70 Air Split
EN 255:1997
EN 378:2000
DIN 8901
DIN EN 60335-1 (VDE 0700 T1):2005-07 EN603351:2002+A1:2004+A1:2004
DIN EN 60335-2 (VDE 0700 T40):2004-03 EN 60335-2-40:2003
DIN EN 55014-1 (VDE 0875 T14-1):2003-09 EN 55014-1:2000+A1:2001+A2:2002
DIN EN 55014-2 (VDE 0875 T14-2):2002-08 EN 55014-2:1997+A1:2001
DIN EN 61000-3-2 (VDE 0838 T2):2001-12 EN 61000-3-2:2000
DIN EN 61000-3-3 (VDE 0838 T3):2002-05 EN 61000-3-3:1995+Corr.: 1997+A1:2001
National Directives
VBG20
DruckbehV
DIN 8901
DIN 8975
SVTI
GDH Energy Co., Ltd. Guangzhou, China
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