Thermann TH160GLG User guide

INSTALLER'S
MANUAL
Thermann X Split Heat Pump
Installation Details
Warranty
Models
Tank Unit: TH160GLG, TH250GLG,
TH315GLG, TH400GLG
Heat Pump Unit: THP45
System Model: THP45x160,
THP45x250, THP45x315, THP45x400

Thermann Installer's Manual
Thermann X Split Heat Pump

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CONTENTS
Important Safety Instructions
Introduction
Typical Installation Layout
Hot Water Flow & Return Applications
Installation Location
Installation Requirements
Piping Connections
Heat Pump Unit Piping & Installation
Electrical Connections
Electrical Installation
Bleeding Air from the System
Time and Block Out Setting
Maintenance Mode
Error Codes
System Maintenance
Technical Data - Heat Pump Unit
Technical Data - Tank
Wiring Diagram
Water Supply Quality
Warranty Policy
Commissioning Checklist

Thermann Installer's Manual
Thermann X Split Heat Pump
4
IMPORTANT SAFETY INSTRUCTIONS
Warning
Do not open the heat pump unit cover.
Caution
Do not block the air inlet and outlet.
Do not climb or put anything on top of the heat pump unit.
Do not put anything susceptible to humidity under the heat pump unit.
Do not use the heat pump unit if the installation blocks have been damaged.
Ensure no animal or plant is placed directly in front of where air is blown from the heat pump unit.
In the case of any abnormality turn the earth leakage breaker to “OFF”.
Select an installation place with consideration given to neighbours.
Remove any snow from the heat pump units after snowfalls.
Do not touch the tap while hot water is being supplied.
Check the water temperature before supplying any hot water or taking a shower.
Do not run the hot water directly into sink outlets etc.
Warningincludes the possibility of death or serious injury”.
Cautiondamage that includes the possibility of injury or damage to property.”
Do not disassemble, repair or alter the product in any way.
Do not use any damaged, altered, or bundled power code.
Do not touch the PTR valve, drainage pipe, drain outlet or drain elbow when inspecting the PTR
valve or while draining hot water.
Ensure the product is removed from any gas containers, source of fire and flammable substances.
For continued safety of this appliance it must be installed, operated and maintained in accordance
with the manufacturer’s instructions.
persons only.
This appliance may deliver water at high temperature. Refer to the Plumbing Code of
Australia(PCA), local requirements and installation instructions to determine if additional delivery
temperature control is required.
gas may accumulate in the water heater. To dissipate this gas safely, it is recommended that a hot
tap be turned on for several minutes or until discharge of gas ceases. Use a sink, basin, or bath
outlet, but not a dishwasher, clothes washer, or other appliance.
nearby. If hydrogen is discharged through the tap, it will probably make an unusual sound as with
air escaping.
Do not use the shower or any hot water for at least one minute after recovery from a power cut.
Do not install the unit anywhere it will be exposed to seawater.
Do not poke anything into the air inlet or outlet of the heat pump unit
System contains refrigerant under very high pressure. The system must be serviced by qualified
If the hot water system is not used for two weeks or more a quantity of highly flammable hydrogen
During this procedure, there must be no smoking, open flame, or any electrical appliance operating

555
WARRANTY
Thermann Split Heat Pump hot water units are covered by Reece for any cost of labour
and parts in the event of a component failure due to any defects that may arise either from
workmanship and/or faulty material. Product must be installed by a licensed plumber
The warranty commences on the date of i nstallation :
RESIDENTIAL USE:
2
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HEAT PUMP UNIT TANK PARTS & LABOUR
COMMERCIAL USE:
1
YEAR
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HEAT PUMP UNIT TANK PARTS & LABOUR
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WARNING
This appliance is not to be used by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction.
Children being supervised are not to play with the appliance.
Indicates content requiring “attention”.
Indicates content that is prohibited.
Indicates content with “instructions” that need to be fully followed.

Thermann Installer's Manual
Thermann X Split Heat Pump
6
GENERAL
The Thermann X Split Heat Pump must be installed in accordance with the following:
(1) Plumbing Code of Australia.
(2) Installed to meet AS/NZS3500.4 National plumbing and drainage (part 4) code hot
water supply systems – acceptable solutions.
(3) Installed to meet HB 263-2004 Heated water systems plumbing industry commission
(4) Installed to meet AS/NZS 3000 Electrical installations (known as the Australian/New
Zealand wiring rules).
(5) The unit has been specifically designed for domestic hot water heating and is not suit-
able for any other purpose. If installed in a commercial application, then warranties will
be reduced to 1 year for both Tank, Heat pump unit and parts and labour.
(6) The unit is designed to operate when connected to the town water supply with a maxi-
mum operating pressure of 500 kPa. To ensure the mains pressure does not exceed this, a
pressure-limiting device that complies with AS1357 must be connected to the town water
supply line.
(7) This system delivers hot water exceeding 500C. Reference should be made to AS/
NZ3500.4 and/or local regulations relating to the need for temperature tempering devices.
(8) The unit must be stored and transported in an upright position. Failure to do so may
render the unit faulty. Such failure is not covered under any warranty agreements.
INSTALLATION MUST BE CARRIED OUT ONLY BY AN AUTHORISED AND
APPROPRIATELY LICENSED PERSON.
The Thermann X Split Heat Pump is designed to eciently and eectively heat water in
domestic applications. This product is an external CO2 Heat Pump water heater. These units
are designed to be installed outside and as a kit (tank and heat pump unit).
Thermann X Split Heat Pump units are manufactured to have a factory output of 650C as
standard. Where connected directly to sanitary fixtures used primarily for the purposes of
personal hygiene, it must be fitted with an approved tempering valve into the hot water
piping to any bathroom and/or ensuite.
INTRODUCTION
IMPORTANT NOTE: THIS HOT WATER UNIT IS NOT FOR POOL OR SPA HEATING

777
TYPICAL INSTALLATION LAYOUT
Heat Pump Unit
Hot Return
Cold Supply
Tundish
Cold Water Inlet
Hot Water Outlet
To House
From Town
Water Supply
Water Tap
PTR Valve
850kPa
Stop Valve
Pressure Limiting Valve 500kPa
Thermistor Cable
To Tank Unit
Hot Water flow
Cold Water flow
To Heat Pump Unit
Tank Unit
Tundish

Thermann Installer's Manual
Thermann X Split Heat Pump
8
HOT WATER FLOW & RETURN
APPLICATIONS
The Thermann X Split Heat Pump is not suitable to be installed as a standalone installation
within a circulated hot water flow & return system (ring main) in a domestic hot water
heating application.
If a circulated flow and return system is being used, it is necessary to install a secondary
water heater (buffer tank) supplied from the heat pump water heater. The flow and return
lines connect to the secondary water heater, not the heat pump storage tank. The
secondary water heater makes up for the pipe heat loss in the flow and return system and
must be able to provide a hot water outlet temperature at a minimum of 60°C and cannot
return to the secondary water heater less than 55°C.
Note: The thermostat or preset outlet temperature of the secondary water heater must
always be set to maintain a temperature at a minimum of 60°C in the hot water flow and
return line, including making up pipe heat losses in the system.
Refer to the Installation Layout diagram shown below on how this is installed.
Note: Minimise the length of pipe work connecting the heat pump storage tank hot water
outlet to the circulated hot water flow line to reduce the amount of dead water in the hot
water system.

9
Thermann Installer's Manual
Thermann X Split Heat Pump
HOT WATER FLOW & RETURN
APPLICATIONS (CONT.)
Temperature Limiting Devices
A temperature limiting device cannot be installed within the circulated hot water flow and
return pipe work. The tempered water from a temperature limiting device cannot be
circulated.
Where a circulated hot water flow and return system is required in a domestic hot water
heating application, a temperature limiting device can only be installed on a dead leg,
branching off the circulated hot water flow and return pipe.
If circulated tempered water were to be returned to the water heater, depending on the
location of the return line connection on the water supply line to the water heater, then
either:
•Water will be supplied to the cold-water inlet of the temperature limiting device at a
temperature exceeding the maximum recommended water supply temperature, or
•When the hot taps are closed no water will be supplied to the cold-water inlet of the
temperature limiting device whilst hot water will continue to be supplied to the hot
water inlet of the temperature limiting device.
These conditions may result in either water at a temperature exceeding the requirements
of AS/NZS 3500.4 being delivered to the hot water outlets in the ablution areas, or the
temperature limiting device closing completely and not delivering water at all, or the
device failing. Under either condition, the operation and performance of the temperature
limiting device cannot be guaranteed.

Thermann Installer's Manual
Thermann X Split Heat Pump
10
INSTALLATION LOCATION
•The tank unit should be located as close as possible to the most frequently used hot water
outlet. The heat pump unit must be located outside and as close as practically possible to
the tank, but not further than 15 metres distance from it.
•Ensure sucient clearance around the heat pump unit to allow air to circulate and provide
adequate space for service maintenance of the unit (Figure 2). Note: Poor ventilation may
cause the unit to short cycle and this could increase power consumption by more than
10%.
•Do not install the heat pump unit in a confined space or where intake and exhaust airflow
is compromised.
•If the heat pump unit is installed facing a wall, exhaust air may stain the wall.
•There must be adequate space between the top of heat pump to allow for access to top
controls for servicing. Note: Avoid installing heat pump unit near bedroom windows.
•The heat pump unit cannot be installed if there are obstacles such as walls in three or
more directions around the heat pump unit (see below figure).
Figure 2 : Restrictions on where the heat pump unit can be installed
A
A
A 150mm or more
H
B 300mm or more (service space)
C 600mm or more350mm or more
Over 1200mm
Within 1200mm
A
H
B
B
Heat Pump
Unit
Front
A
Heat Pump
Unit
Front
Front
Front
When there is no obstacle on the blowout side
[ Top view ]
A
C
Heat Pump
Unit
Front
Heat Pump
Unit
Front
Heat
Pump
Unit
When there is an obstacle on the blowout side
obstacle
Heat
Pump
Unit
heat pump unit
eht dna tinu knat eht neewteb ecaps eht htiw noitallatsni no snoitcirtseR : 3 erugi
F
150mm or more
A
50mm
or
more
Heat Pump
600mm or more
(maintenance space)
Unit Heat Pump Unit
Top view standard layout Side view
Tank Unit
Total piping length : 15 metres maximum per way
Number of bends : 6 maximum
(A)Dierence in height between the base of tank and bottom of Heat pump should be no more than : 5 metres maximum.
Caution :
Keep the piping run to a minimum as the longer the pipe run the greater the potential for heat loss.
Tank Unit
Front
Front
Figure: Minimum Installation Clearances
Figure: Restrictions on installation with the space between the tank unit and the heat
pump unit

11
INSTALLATION REQUIREMENTS
•The power requirement for the system is a dedicated 20 amp circuit fitted with a circuit
breaker. This circuit may be connected to continuous or OFF peak power. Installation of
this system must be carried out only by a qualified installation technician (electrical and
plumbing).
•The surface to which the heat pump unit is installed must be firm, preferably a concrete
pad or block. If the surface is firm there is no need to fix the unit to a base surface, unless
there is a likelihood of high wind or local vibration. Appropriate fixing devices should be
used to secure both tank and heat pump unit.
•A pressure and temperature (PTR) valve is included in the installation kit of the tank unit.
This is installed in a defined point near the top of the tank unit. The PTR valve must have a
clear space where escaping steam or water can flow freely (refer AS/NZS 3500.4).
•The installation site must be well drained so that any water accumulating (such as local
rain or pipe leakage) will drain away and not enter the heat pump unit and the tank unit.
•Local water pressure must be a minimum of 200 kPa to ensure ecient functioning.
Figure 4 : Heat pump installation example and dimensions
290
<
Unit: mm
>
327.3
51
580
Heat Pump Unit
Dimensions of the legs of the heat pump unit
(overhead view)
Drain elbow
Base foundation
Supported load:
400N or more
Drain outlet
NOTE:
The entire system is set up and fully functional when supplied. Once all the water and
electric connections have been made, the system will operate automatically provided that
mains power is available. The only adjustments required is the current time setting on the
timer setting panel under the piping cover especially if the block out time setting is desired.
See current time setting and block out time section on page 16 - 18.
•Attach the drain elbow to the drain opening located on the bottom of the heat pump unit.
The drain elbow is included in the heat pump box.
•Attach a drain hose with a 16mm inner diameter to the drain elbow to guide the drained
water to an appropriate drain.
Figure: Heat pump installation example and dimensions

Thermann Installer's Manual
Thermann X Split Heat Pump
12
PIPING CONNECTIONS
•All piping that connects to the water supply must be carried out by a licensed plumber.
•The water supplied to the system must comply with the drinking water quality standard.
Use of water that does not comply with this standard could result in a malfunction of the
system.
•The water source must have a min pressure of 200 kPa
•A tundish must be installed under the drain outlet.
•This product cannot be connected to a solar water heater.
•The piping must be insulated using insulation with a thermal conductivity no greater than
0.035 W/m • K and minimum thickness of 15 mm.
•If the piping needs brazing, make sure that all flux and flux splatter is wiped away with a
wet cloth.
•As the hot water supply pipe will expand and contract, use sleeves when passing it
through concrete walls or slabs.
•With buried piping, a sheath pipe will need to be used that has had both ends sealed to
avoid any rain penetration.
•Use only heat-resistant or corrosion resistant material to seal the pipe joints.
•Cutting and wrenching the piping material may result in oil and dust adhering to it. After
fitting, clean the material with a mild detergent before doing any piping work and smooth
the edges to remove any scratches and burrs. (After passing water through the system,
verify whether any dust has accumulated on the filter of the taps and heat pump unit
pipe.)
•When using sealing tape, ensure that no tape is sticking out of the thread.
•If any heat-resistant vinyl chloride pipes (such as HT pipe) are bonded together, pass
water through them after the pipes have set to prevent any bond adhering to the filter or
other parts.

13
PIPING CONNECTIONS (CONT.)
FREEZE PROTECTION:
The piping will freeze if it is installed in a place exposed to wind and snow even after
heat insulation work, or if the ambient temperature drops below 0 C. In areas where
there is a risk of freezing, wrap a commercially available electric heater around pipes
and valves to keep the heat suciently. If the heat retention is not sucient, anti-freezing
measures will not be eective.
•After completion of the piping, inspect the plumbing for any water leaks from the joints
before installing freeze protection.
•Take preventive measures against freezing in the water supply piping and hot water
supply piping of the tank.
•For commercially available electric heaters, follow the instructions and install the piping
and valves correctly. The thermostat is especially important, so install it correctly.
•Ensure the freeze protection heaters are connected to a 24 hours continuous power
supply.
•It is important to fully explain the use and operation of the freeze protection heater to
the customer.
•When turning off the power, because the unit will not be in use, ALL water must be
drained from the unit and piping.
Heater
Tapes
Figure 8: Details on wrapping thermal insulation around the piping connector
Insulation
Thermal
Insulation
Band
Pipe wrapping Connection wrapping
Figure: Insulation Locations

Thermann Installer's Manual
Thermann X Split Heat Pump
14
• Connect one of heat pump pipes on the “COLD WATER” side of the heat pump unit
and the “FLOW” side of the tank unit.
• Connect the other end of heat pump pipes on the “HOT WATER” side of the heat pump
unit and the “SOLAR RTN” side of tank unit.
• Connect the water supply pipe to the “INLET” side of the tank unit.
• Connect the hot water supply pipe to the “OUTLET” side of the tank unit.
• Install the supplied PTR valve on the “PTRV” side of the tank unit.
• Pass water through the pipe to remove any dust inside before connecting the pipe.
• After all the piping connections are completed, pass water through the system.
• Remove the air from the system according to the instructions on page 15.
• Make sure all the necessary devices are mounted to the pipes as shown in diagram.
If the heat pump unit piping is crushed or clogged or the air inside was not removed
during the test operation, the temperature of the supplied hot water may become
inconsistent.
•Pipework between the heat pump unit and the tank unit is to be 15mm (1/2”) copper
pipes (both flow & return).
Note: Pipework must be insulated using material with a thermal conductivity of
0.035W/m• K or a thickness of 15mm or more.
Heat Pump Unit
Hot Return
Cold Supply
Tundish
Cold Water Inlet
Hot Water Outlet
From Town
Water Supply
Water Tap
PTR Valve
850kPa
Isolation non return valve
Pressure Reducer Valve 500kPa
Thermistor Cable
To Tank Unit
Hot Water flow
Cold Water flow
To Heat Pump Unit
Tank Unit
Tundish
To House
Figure: Hot and Cold Pipework
HEAT PUMP UNIT PIPING

15
ELECTRICAL CONNECTIONS
•The power requirement for the system is a dedicated 20 amp circuit fitted with a circuit
breaker.
•Fill the tank with water, check that water has come out from the drain plug and then turn
on the power.
•The system runs its water heating cycle once a day to fill up the storage tank unit with
heated water.
•If the block out time function is selected (setting is covered in page 16-18) the unit will not
operate during the block out times.
•The block out function is typically used on installations that have 'time of use' electricity
taris. The water heating cycle operation starts automatically when the residual hot water
in the tank unit decreases.
•The system will not run if the electrical power supply is cut o (i.e. if it is connected to o-
peak power). However, the system will automatically start operation, once the electricity
becomes available.
SYSTEM OPERATION IF CONNECTED TO CONTINUOUS POWER
•There are no special settings for the o-peak connection. The system will run once the
power becomes available and the temperature in the tank drops below the set point of
the tank thermistor. If connecting the unit to o peak ensure that the o-peak contract
provides a minimum of 5 hours continuous power, as it can take at least four hours to fill
the tank unit with hot water at installation. If the ambient temperature is lower than 100C
this can be longer.
•If the unit is connected to o peak power and hot water consumption has been exception-
ally high, then hot water may not be available until the next power supply cycle.
•Daily frequency and amount of hot water consumption may also aect the duration of the
heating cycle operation.
•Select the electrical supply mode that best suits the customer's hot water concumption.
The type of o-peak connection may need to be changed if hot water supply is not
maintianed as required
SYSTEM OPERATION IF CONNECTED TO OFF-PEAK ELECTRICITY
Heat Pump Unit
Tank Unit
Electricity Power Meter
240V Power Line
Earth Line
Tank Thermistor Cable Line
Terminal block
Caution
:
Use Copper wiring
Figure: Outline of electrical system connections

Thermann Installer's Manual
Thermann X Split Heat Pump
16
INSTALLATION MUST BE CARRIED OUT BY AN AUTHORISED AND LICENSED PERSON.
CONNECTING POWER SUPPLY AND THERMISTOR CABLE
1. Remove the piping cover
2. Connect the power supply line to the terminal block.
3.Fix the power supply line with the wire holder band.
4.Connect the thermistor cable line to the terminal block.
5.Hold the thermistor cable with the code clip.
6.Attach the piping cover back on the heat pump unit
7. Loosen gland nut on the lower sensor connection port of the tank.
8.Put gland nut over probe and insert probe into bottom sensor location. Ensure it is
pushed in all the way.
9.Tighten gland nut over probe so it is secure and cannot be removed.
Note: If tank sensor does not reach the edge of the tank sensor connection port,
temperature may not be able to be detected, causing an error or continuous operation. If
the 2m sensor cable is not long enough, you will need a 15m sensor cable.
ELECTRICAL INSTALLATION
Figure 7 : Connect power cables
0.5mm ~ 1mm
Core
Blue
White
Blue
Green
Power wire
Standard tightening torque for the terminal
is 1.4 ~ 2.0 N m.
Black White
Power supply
Ground
Wire holder band
Power line
Green/Yellow
Code clip
Thermistor cable
GreenBlue
Figure: Connect power cables

17
BLEEDING AIR FROM SYSTEM
The following steps must be taken to ensure all air is removed from the system. Incorrect
removal of air may cause the water temperature to vary and may cause an error fault
1. Plumb pipes to the tank unit and the heat pump unit.
2. Push up the lever on the PTR valve to open, and fill the tank unit with water.
3. Confirm that the water comes out of the PTR valve and then close the lever.
4. Open the water drain plug on the heat pump unit.
5. Close the plug after no air is seen in the water.
6. Supply the power to the heat pump unit.
7. Display shows "1200" then "Clock setting mode" is started with operating "Air Removing
process" at the same time. In case finish time setting or nothing is operated for 1 minute,
"Clock setting mode" is terminated and "APon" will be displayed on the monitor.
8. "Air Removing process" will be done in 5 minutes.
9. Once it's finished, current time will be shown on monitor.
10. Open the hot water faucets in the home to remove air.
11. Close the hot water faucets in the home after no air is seen in the water.
Note: If air removing mode is not completed, the system will not start the heating cycle.
Open
the drain plug

Thermann Installer's Manual
Thermann X Split Heat Pump
18
TIME AND BLOCK OUT SETTING
CURRENT TIME SETTING
This product contains a built-in clock as part of the water heating cycle logic and refers
to the current time. It is necessary to set the clock before starting to use the product. The
current time can be set in the 'Clock Setting Mode' as described below
Note :
There is no need to adjust the time setting for the daylight saving period. Even if the
installation is conducted during the daylight saving period, the clock setting to the ordinary
time (not daylight saving time) is preferable.
1. Switching to Clock Setting Mode
Press the “Enter” key in the Clock Display Mode to switch to the Clock Setting Mode.
Time Display starts flashing once the mode is switched.
2. Confirming Time Setting
After the clock is adjusted to the current time, press the Enter key to confirm the
setting. The time display stops flashing and comes on once the setting is finished.
Setting the Clock
The time setting can be adjusted by pressing "▲” and “▼” keys. Fast forward and rewind
are available by pressing and holding down either "▲” and “▼” key.
CAUTION :
The setting automatically goes back to the Clock Display Mode when no panel
operation is performed for more than 60 seconds in the Clock Setting Mode. If this
occurs, changes made will not be reflected to the setting. Depending on the set time,
the system will start its heating cycle.
Note :
If no buttons are pressed on the panel for more than 60 seconds, the display goes
into sleep mode and the panel is blank except for the operation status light. Sleep
Mode is turned o when any button is pressed. "▲", "▼" or "Enter" key is pressed.

19
TIME AND BLOCK OUT SETTING (CONT.)
Figure 9 : How to operate the controller
▲ ▼ Enter
“▲”key
Operation Panel
“▼”ke “Enter”key
How to use the operate controller
remove the piping cover (1 screw)
key
Figure: How to operate the controller
Figure 9 : How to operate the controller
▲ ▼ Enter
“▲”key
Operation Panel
“▼”ke “Enter”key
How to use the operate controller
remove the piping cover (1 screw)

Thermann Installer's Manual
Thermann X Split Heat Pump
20
TIME AND BLOCK OUT SETTING (CONT.)
BLOCK OUT TIME SETTING MODE
This mode is used to set the block out time that blocks the heat pump unit operation within
the setting time. Block out times are used when the customer has an o-peak tarrif for
example.
CHANGE THE MODE
Press and hold down ▲and ▼keys together in the clock display mode to go to the block
out time setting mode. Once the mode is changed, 'bo' and '00XX' (00 = start time, XX =
end time) are displayed. (Initial setting = 00 o'clock for both start and end)
Adjust set block out start time
Press ▲or ▼key and '00' (start time) in '00XX' starts flashing and 'XX' (end time)
illuminates. Now the block out start time can be adjusted. Setting can be performed only in
hour increments.
Set block out start time
Press the Enter key to set the desired time setting. After the start time is set, the start time
display stops flashing. The end time display starts flashing at the same time.
Adjust block out end time
Set to the desired end time by using ▲and ▼keys. Setting can be performed only in hour
increments.
Set block out end time
Press enter key to adjust the desired time setting. After the end time is set, then it starts to
display 'bo' and '00XX' (00 = start time, XX = end time) by turns.
Go back to clock display mode
Hold down Enter key to go back to the clock display mode. It will automatically go back to
the clock display mode when no panel operation is performed for more than 60 seconds.
Block out time setting mode cannot be set unless the end time setting is confirmed.
Cancel block out setting
To cancel the block out setting, set both start and end times to the same time.
AM
○
PM
○
AM
○
13 01
BoSetting For Example “ 13 01 ”
Unit will not Run