Reclaim REHP-CO2-315GL-GM User manual

Manual for heat pump hot water system:|1
AIR-SOURCE CO2 HEAT PUMP HOT WATER
SYSTEM
PRODUCT MANUAL
INSTALLATION, OPERATION/MAINTENANCE, WARRANTY
Covering model numbers (for STC claims):
REHP-CO2-315GL-GM, REHP-CO2-315GL-SHP, REHP-CO2-315GL
REHP-CO2-315SST, REHP-CO2-315SSQ
This appliance is not intended for use 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 concerning use of the appliance by a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.

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Contents
1Terminology......................................................................................................................5
2Product specification overview (heat pump and tank are split)..................................6
3System description: How it works..................................................................................7
3.1 Main Components............................................................................................................................ 7
3.2 System operation .............................................................................................................................7
4Technical specifications...................................................................................................9
4.1 Heat pump........................................................................................................................................ 9
4.2 Hot water storage tank................................................................................................................... 11
4.3 Controller.......................................................................................................................................12
5Installation details..........................................................................................................17
5.1 Site inspection and installation preparation...................................................................................17
5.1.1 Component inspection............................................................................................................19
5.1.2 Component transportation......................................................................................................19
5.1.3 Unpacking of the components................................................................................................19
5.2 Hot water storage tank...................................................................................................................19
5.2.1 Installation location................................................................................................................19
5.2.2 Connections and insulation ....................................................................................................20
5.3 Heat pump......................................................................................................................................22
5.3.1 Installation location and spacing............................................................................................22
5.3.2 Mounting................................................................................................................................23
5.3.3 Attaching the drain elbow plug..............................................................................................23
5.3.4 Removing/attaching the piping cover .................................................................................... 24
5.4 Controller.......................................................................................................................................25
5.4.1 How to mount the controller on the tank wall........................................................................26
5.4.2 Terminal blocks- Prewired power cable and sensor cable .....................................................28
5.4.3 Fitting the Lithium Battery into the module...........................................................................30

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5.5 System integration and commissioning......................................................................................... 30
5.5.1 System piping......................................................................................................................... 30
5.5.2 System wiring.........................................................................................................................33
5.5.3 Powering up the controller for the first time..........................................................................38
5.5.4 Powering of the heat pump AND air purge procedure...........................................................39
5.6 Post installation inspection checklist............................................................................................. 40
6Operational and maintenance details..........................................................................42
6.1 Controller.......................................................................................................................................42
6.1.1 Definitions and control philosophy........................................................................................42
6.1.2 Details of operational modes..................................................................................................44
6.1.3 Functionality of side buttons..................................................................................................45
6.1.4 User Menu..............................................................................................................................47
6.1.5 Setting the Control Option .....................................................................................................47
6.1.6 Powering up the module (repeat times)..................................................................................48
6.1.7 Error codes and troubleshooting ............................................................................................49
6.2 Hot water storage tank...................................................................................................................52
6.2.1 PTRV......................................................................................................................................52
6.2.2 Anode..................................................................................................................................... 53
6.2.3 HYDROGEN BUILD UP......................................................................................................53
6.3 Heat pump unit .............................................................................................................................. 53
6.3.1 How to drain the system.........................................................................................................53
6.4 Maintenance checklist for the owner............................................................................................ 54
7Warranty.........................................................................................................................54
7.1 Terms and conditions..................................................................................................................... 54
7.2 Eligibility requirements to make a claim.......................................................................................54
7.3 Summary of warranty periods .......................................................................................................55
7.4 General warranty conditions.......................................................................................................... 55

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7.5 Heat pump warranty conditions.....................................................................................................59
7.6 Tank warranty conditions ..............................................................................................................60
7.6.1 Reclaim Energy storage tanks................................................................................................ 60
7.6.2 Reclaim Energy glass-lined Tank...........................................................................................61
7.6.3 Reclaim Energy stainless steel tanks......................................................................................62
7.7 Controller warranty conditions......................................................................................................62
7.8 Warranty registration- Lodge a claim............................................................................................63

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1Terminology
Term
Definition
ASHP
Air-source heat pump, which is a device including different parts such as evaporator and compressor
that heat up water using ambient air as the primary energy source.
ACL
Australian Consumer Law is the national law for fair trading and consumer protection.
Brass fittings
Fittings used to connect manifold to manifold (connectors), or fittings related to connecting the
manifold to copper pipe (elbows or straight fittings). These are made out of brass material.
Claim
Any claim, action, proceeding, loss, damage, cost, expense or liability whatsoever incurred or
suffered by or brought or made or recovered against any person and however arising (whether or not
presently ascertained, immediate, future or contingent)
Controller
Device used in the SHW system to set the temperature requirements of the system to control relays
such as pumps.
Corrosion
Process that involves deteriorating material due to oxidation.
Customer
Person(s) or body/bodies corporate to whom these terms and conditions are directed.
Cylinder
Refers to the tank cylinder.
ECV
Expansion control valve: Installed on the cold mains line to relieve excess pressure. The customer
needs to consult with a certified plumber/installer.
Electrical conductivity
Amount of dissolved material in water, which relates to its ability to conduct electrical current
through it.
Hardness
Water that is high in dissolved minerals.
Insulation
Materials used for heat retention.
pH level
Measure of how acidic/basic water is.
PTR Valve
Pressure Temperature Relief Valve (PTRV): Installed on the hot water storage tank to relieve
pressure, and excessive temperatures. The temperature default setting is 99oC for temperature and
700 kPa for pressure.
PLV valve
Pressure limiting valve is installed on the cold main inlet of water to the system. The setting shall be
500 kPa.
Tempering valve
A valve that mixes hot and cold water before supply to the hot water taps. The default setting is
55˚C.
Storage tank
Container holding volume of water.

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2Product specification overview (heat pump and tank are split)
The summary of Reclaim Energy heat pump hot water system specification is tabulated in Table 1.
Table 1 Reclaim Energy heat pump hot water system overview
Parameter
Unit
Value
Heat pump
Model Number
-
EHPE-4540P
Max. heat output
kW
6.0
Max. Rated current input
A
10.0
Max. Rated Power input
kW
2.3
Breaker size
A
20
Heat pump refrigerant
-
CO2 (R744)
Heat pump hot water delivery temperature
˚C
63
Range of operating ambient temperature
˚C
-10 to 43
Heat pump unit weight
kg
48
Heat pump location
-
outdoor
Noise level
dB
37
Tank
Tank unit weight (empty)
kg
92
Storage tank volume (delivery)
L
315
PTRV pressure
kPa
700
Thermistor level on tank (percentage from top of the tank)
%
65 or 69
Tank location
-
Indoor/outdoor
Recommended distance between tank and the heat pump unit
m
2-5
Controller
Model ID
-
RCE-HP-CONT-V1
Controller power supply voltage and frequency
V/Hz
240/50 (single phase)
Signal from the controller to heat pump
V/Hz
12/50
Controller location
-
Mounted on wall or tank
Heat pump on/off temperature (based on tank Thermistor)
C
37/59
Operational hours (default timer settings)
hour
24 (continuous)
Certifications
The product has been certified/tested successfully under the following Australian standards:
AS 5125.1, AS 4020, AS 3498,AS 2712, AS 60335.1, AS 60335.2.40

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3System description: How it works
3.1 Main Components
The system components of the air sourced heat pump that customers will receive include: (1) Heat pump
Unit (2) Storage Tank with PTRV (3) Controller (4) Connection kit that includes a Tee valve and unions (5)
Heat pump mounting legs.
Figure 1 Photo of a Reclaim Energy heat pump hot water system
3.2 System operation
The CO2 heat pump unit receives the incoming cold water temperature from the bottom of the tank.
Using the heat from the ambient air the heat pump heats the CO2 refrigerant to generate hot water. The hot
water return from the heat pump unit (fixed at 63C) is injected into the top of the tank to provide fast hot

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water recover and excellent hot water stratification. As this system delivers hot water exceeding 50 ˚C, a
tempering valve MUST be installed with this unit.
The heat pump operation is controlled by an external controller. The controller operates based on a sensor
connected to the tank at 65/69% level. The heat pump will be turned on if the temperature at the sensor level
on the tank drops below 37C, and it will be run until the tank temperature at sensor level reaches 59 ˚C. The
system is designed to ensure that a minimum of 45% of the tank reaches 60 ˚C (every 24 hours) in order to
meet the legionella requirements as per the Australian standards. The heat pump will run until 65/69% of the
tank reaches 59 ˚C. In the subsequent heating cycles of every 24-hour period, the heat pump “turn off” logic
is adjustable by a built-in timer settings. The default timer setting is programmed to run on continuous
operation but this can be adjusted by the installer based on the home owner requirements to suit their needs.
More details regarding the controller operation and settings is outlined in Section 5.
At ambient temperatures below 5.5 C, frosting may occur, if this happens the heat pump will go into
defrost mode in order to protect the unit (i.e. this defrost functionality is normally less than 15 minutes in
duration). When the unit is in defrost functionality the pump and fan will stop, the refrigerant heat will
defrost the evaporator. As the defrost advances, the evaporator temperature will increase. When a set
temperature (pre-programmed) is achieved, the defrost operation stops and the heat pump will operate in line
with its normal settings.

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4Technical specifications
This section summarizes the main technical specification of the Reclaim Energy heat pump hot water
system.
4.1 Heat pump
The dimension and section views of the heat pump are displayed in Figure 2, whilst the internal diagram
of the heat pump system is highlighted in Figure 3. The five main internal components of the heat pump are:
the fan, the evaporator, the compressor, the pump, and the water/refrigerant heat exchanger. The detailed
specification of these major components are provided in Table 2. In addition, the detail component list of
heat pump unit along with its part numbers are displayed in Figure 4.
Figure 2 Heat pump unit detail top/front/side view (all dimensions are in mm)
Leg
Connection port of drain elbow (bottom)
2-12×20 elongate hole
Outlet
grille
Inlet grille
(side)
Drain plug of pump
Drain plug
Circulation port (cold water)
Circulation port (hot water)
Ground terminal
Terminal block
Sensor (temp. outdoor)
Inlet grille (back)

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Figure 3 Reclaim Energy heat pump internal schematic
Table 2 Detail specifications of heat pump unit major components
Heat pump unit: Model ID=EHPE-4540P
Parameter
Value
Unit
Power input *
0.916
kW
Thermal output *
4.7
kW
COP *
5.24
-
Refrigerant
CO2 (R744)
-
Output water temperature
63
˚C
Power supply
240V/50 Hz
V/Hz
Current input (Max)
10.0
Amps
Power input (Max)
2.3
kW
Noise level
37
dB
Ambient temperature
-10 to 43
˚C
Dimension (H*W*D)
675*825*300
mm
Weight
48
kg
Rain resistance
IP*4
-
Water port connections (inlet/outlet)
1/2" BSP, 12.7mm
Inch/mm

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Test condition :
Outlet water setting 63 ˚C
Inlet water 15 ˚C
Ambient temperature dry bulb 19.0 ˚C
NO.
PARTS NAME
1
Compressor
2
Water Heat Exchanger
4
Expansion Valve
5
Evaporator
6
Front Panel
7
Top Panel
13
Outlet Grille
14
PCB
18
Coil (Expansion Valve)
19
Sensor (Temp. Outdoor)
20
Sensor (Temp. Suction)
21
Sensor (Temp. Discharge)
22
Sensor (Temp. Defrost)
23
Sensor (Temp. Water Inlet)
24
Sensor (Temp. Water Outlet)
30
Reactor
31
Motor
33
Propeller Fan
36
Drain Elbow
39
Circulation Pump
Figure 4 Exploded diagram, components, and part numbers of the heat pump unit
4.2 Hot water storage tank
Reclaim Energy offers a range of storage vessels including glass lined and stainless steel options. Tank
port/sensor locations as well as the tank specifications are provided in Figure 5 and Table 3. Note that the
tanks supplied have been designed to minimize the heat loss from the tank during its operation.

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I
G
H
F
E
I
G
H
F
E
I
G
H
F
E
E F
C D
B
A
G
Figure 5 Storage tank generic dimensional schematic
Table 3 Detail specification of Reclaim Energy hot water storage tanks
Tank model ID
Unit
AP315AGLH
APS315TH
APS315SH
RE315GLH
Glass Lined (GL) or
Stainless Steel (SS)
-
GL
SS- tall
SS- squat
GL
Total physical volume
L
323
330
333
340
Diameter (A)
mm
617
565
685
652
Height (B)
mm
1765
2090
1490
1749
Hot water outlet (D)
mm
1531
1850
1205
1500
PTRV port/heat pump return (C)
mm
1531
1850
1205
1500
Sensor (G)
mm
560
730
470
655
Cold Water inlet/HP Flow (E/F)
mm
197
210
210
105
The AP315AGLH model number ONLY, is using the same port for the return line as the PTRV port on
top of the tank. This is done via a tee valve connection- please refer to installation details in Section 5. For

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all other model numbers, there are separate connection ports on the tank for the PTRV port and heat pump
return line.
4.3 Controller
The controller is the electronic interface between the storage tank and heat pump. The control unit has
been designed to allow home owners and installers to interface with the operations of the unit to ensure it
functions in the most efficient manner possible for householders. The unit incorporates a real time clock, as
time-based heat pump operational periods are user selectable. The controller self-checks itself to ensure the
storage tank temperature reaches 59 ˚C at least once a day as part of our legionella control mechanism. The
unit is enclosed in a weather proof enclosure which is generally mounted to the side of the storage tank. The
default display is time of day, while tank temperature can be briefly displayed if desired. Three status LEDs
provide additional information as detailed in the controller user manual. The module is supplied prewired to
reduce installation time. Supplied components associated with the controller are shown in Figure 6. The
controller components are shown in Figure 7. Also, detail specifications of the controller is given in Table 4.
1. The controller Module
2. Pre-fitted 230v power lead.
3. Pre-fitted Temperature Sensor.
4. Pre-fitted RJ45 10 meter patch lead.
5. CR2032 Lithium battery.
6. 4 No. securing screws.
7. 4 No. nylon spacers.

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Figure 6 A photo of supplied controller unit
CR2032 Lithium Battery holder for the real time clock battery
Boost button
Temperature button
Menu button
RJ45 Patch cable connector 230vAC power terminals
Temperature sensor terminals Remote Control input terminals

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4 Character 7 segment display
Power LED
On Call LED
Fault LED
Figure 7 Detail graphic description of the controller module
Table 4 Detail specification of the controller module
Item
Description
Details
User selectable
Operational modes
Option 1: 24/7 operation
Option 2 (off-peak 1 per CER method): 10 pm- 7 am
Option 3: (off-peak 2 per CER method): 10 pm- 5 pm
Option 4: 10 am- 4 pm
Option 5: timer with two zones for customized operations
User selectable
One-off heating cycle (overwrite the operational
mode and revert back after completion)
One-shot boost button
Enclosure
Dimension (mm)
130H x 130W x 35D
Material
Polycarbonate
Mounting
Screw mountable
Connectors
-
RJ45 for Heat Pump Interconnection
Fixed screw connect terminals for Power and Temperature
Sensors
Power
Requirements
-
80 –264vAC 47-63Hz
Operating
Temperature
-
-25 to 75oC
Input
Requirements
-
Input (CON2, Term 1-2):
Temperature Sensor, 10kohm @ 25oC NTC
Fixed Time
Delays
Inputs (Heat Pump)
100mS
Push Button Inputs
50mS
Temperature Sensor Fault ON/Off
3 seconds
Temperature Mode ON/Off set point
3 seconds
Purge Mode
5 minutes
Temperature Display Mode
20 seconds
Menu Display Mode
30 seconds
RTC Battery
back-up
-
CR2032 Lithium battery
Kit Contents
-
Controller Module

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230v Australian approved power cable & plug (pre-fitted)
RJ45 10 meter patch cable (pre-fitted)
Temperature Sensor & 2 meter lead (pre-fitted)
Mounting screws and spacers x 4
CR2032 battery

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5Installation details
The installation of a Reclaim Energy air source heat pump system can only be completed by a licensed
plumber or electrician in accordance with the local standards and regulations as well as the requirements that
are listed below.
AS/NZS 3500.4 - National Plumbing and Drainage Code
AS/NZS 3000 –Electrical installation
AS/NZS 2712.2007 - Solar and Heat Pump Water Heaters: Design and Construction
AS/NZS AS 3498—2009- Water heaters and hot-water storage tanks
A licensed installer must adhere to occupational health and safety guidelines and other relevant industry
associations. Under no circumstances should any installer attempt to install a Reclaim Energy system
without reading and understanding this installation manual. For any queries Reclaim Energy staff may be
contacted on 1300 38 38 15.
Note that the Reclaim Energy hot water system has been designed to provide hot water for domestic
applications only, other applications such as space heating are not supported by this product. Installing the
unit for any other application other than for domestic hot water application will void the warranty. In this
section, the installation guide for each major components of the system as well as the whole system will be
highlighted.
As for the installation process, the following sequence is recommended:
1. Site inspection and find the appropriate installation location
2. Heat pump installation
3. Tank installation
4. Controller/timer installation
5. System integration: piping and fittings
6. Test and commissioning
5.1 Site inspection and installation preparation
The very first step of installation is to find an appropriate location for the installation of the heat pump
unit that includes: heat pump, tank, timer, and the controller. It is recommended that
To reduce the heat loss from piping, the whole system should be installed as close as possible to
the main hot water consumers in the house like kitchen and/or bathrooms.

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The maximum distance between controller/timer, tank, and heat pump should not exceed 15 m.
However, the NTC sensor cable as well as RJ45 cables can be extended if required.
The heat pump is recommended to be installed on the ground next to the tank
The heat pump unit MUST be installed outdoor, but the tank can be installed indoors or outdoors
The back of heat pump unit draws in ambient air and so MUST not be covered. In order to have
sufficient air circulation behind the heat pump, the minimum free space should be 0.15 m
The system requires at least two GPO power outlets (one for controller, one for heat pump), so
this has to be considered when selecting the installation location
The mounting surface of tank and heat pump MUST be horizontal
The clearance on front and back of the unit are 350 mm and 600 mm- please refer to Figure 12
The tank MUST be installed on a concrete slab (on the ground- NOT roof)
Water supply quality must be in line with the specifications of the heat pump unit and the storage
tank being installed
Water quality is an important aspect that can influence the systems operations and functionality. For the
system to be warranted, the water used in the system must meet the requirements outlined in Table 5.
Table 5 Water Quality Threshold Values
Total Dissolved Solids
< 600 mg/L or ppm
Total Hardness (CaCO3)
< 200 mg/L or ppm
Electrical Conductivity
850 µS/cm
Chloride
< 300 mg/L or ppm
pH Level
Min 6.5 to Max. 8.5
Magnesium
< 10 mg/L or ppm
Sodium
< 150 mg/L or ppm
Iron
< 1mg/L or ppm
Alkalinity (as CaCO3)
< 200 mg/L or ppm
Dissolved (free) CO2
< 25 mg/L or ppm
If in doubt contact your local water authority or have a water test completed. In areas of poor water
quality all major components will have a reduced life due to the hardness of the water. In areas with "hard
water" (>200 mg/L or ppm), a water softening device must be installed to ensure the long term efficient
operation of the system is met. Note that the Reclaim Energy glass-lined tank has a sacrificial anode to

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protect the vessel from corrosion. The glass line tank warranty is linked to an anode inspection that must be
carried out every three (3) years
5.1.1 Component inspection
Prior to installation, please check that the following components have been provided. Any concerns must
be brought to the attention of Reclaim Energy immediately.
Heat pump unit
Tank + PTRV
Controller module
Heat pump mounting frames (checked with a reseller)
Heat pump connection kit
Note that all other components required for the installation not listed here should be provided by the
installer.
5.1.2 Component transportation
When transporting boxes, note the orientation of the "THIS WAY UP" arrows.
Ensure all boxes are strapped and secured to prevent movement during transit.
All tanks must be transported upright. Stacking is not recommended for any tanks.
Products should always be handled with care. Damage incurred during the transportation is not
covered under product warranty.
5.1.3 Unpacking of the components
When unpacking, take care to ensure that the components are not damaged in the process.
Avoid using sharp blades or knives as this can scratch the surfaces of the products.
5.2 Hot water storage tank
5.2.1 Installation location
The storage tank must be installed at ground or floor level and must stand vertically upright as per the
manufacturer guidelines.
Tanks must be secured on a concrete or plastic mounting slab as shown in Figure 8.

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The storage tank should be located as close as possible to the most frequent draw off points in the
building such as the bathroom or kitchen. If the storage tank is located a long way from hot water draw
points, a hot water circulation loop on a timer may be considered to reduce the time-lag for water to
reach the tap. Please note this is not supplied by Reclaim Energy but the installing plumber can consider
installing a ring main system for hot water circulation.
The tank should not obstruct any windows, doors or exits. Clearances must be provided to make
servicing and maintenance convenient without the need for ladder or scaffold. For servicing, the PTRV
must also be easily accessible.
The tank should be positioned to allow room for anode removal.
The storage tank must be installed in a properly drained safe tray if installed indoors where leakage may
otherwise cause damage. The installation of the storage tank and safe tray must comply with AS/NZS
3500.4 and all local codes and regulatory authority requirements with regards to its construction,
installation and draining. Tanks installed outside must be installed on a suitable concrete slab.
The tank label must be clearly visible.
Figure 8 Concrete or heavy duty plastic slabs to be placed under the storage tank
5.2.2 Connections and insulation
The piping diagram of storage tank with other components is given in Section 5.5. Note for the
AP315AGLH (a Glass-lined enamel tank) model ID, the PTRV on the tank should be first removed initially
and installed on a tee valve connection. For the rest of tank model IDs, NO tee valve connection is required.