SAHP 130 User manual

V3 June 2021US - SD667052
HEAT PUMP WATER HEATER
SAHP 130 / 200 / 300
INSTALLATION AND
MAINTENANCE INSTRUCTIONS

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V3 June 2021US - SD667052
SECTION 1 GENERAL NOTES
SECTION 2 HEALTH AND SAFETY
SECTION 3 DESCRIPTION OF THE SYSTEM
SECTION 4 PLUMBING INSTALLATION OF THE SYSTEM
SECTION 5 REFRIGERATION INSTALLATION OF THE SYSTEM
SECTION 6 ELECTRICAL INSTALLATION OF THE SYSTEM
SECTION 7 TESTING AND COMMISSIONING
SECTION 8 INSPECTION AND MAINTENANCE
SECTION 9 USING THE CONTROLLER
SECTION 10 TROUBLESHOOTING
SECTION 11 REPLACEMENT OF PARTS
SECTION 12 GUARANTEE TERMS AND CONDITIONS
SECTION 13 SERVICE RECORDS
SECTION 14 DISASSEMBLY AND RECYCLING
CONTENTS

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1.1 The installation of the SAHP 130 / 200 / 300 is the responsibility of
the purchaser. Read the information supplied with the equipment
carefully before installing and using it. The manufacturer declines any
responsibility as regards damages deriving from an incorrect
installation, It is the responsibility of the installer to ensure the
installation complies with all relevant local and national standards and
regulations.
1.2 Each component of the SAHP is supplied complete with its
own instruction sheet, which must be read in conjunction with
this instruction manual, and installed and maintained accordingly.
1.3 Copies of this manual and the instructions supplied with each
individual component must be handed to the client or user of the
system for their future reference and for the purpose of future
maintenance.
GENERAL NOTES
SECTION 1

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HEALTH AND
SAFETY
2.1 The SAHP domestic hot water cylinder range has been designed
to heat domestic hot water to 130OF in vented or unvented
potable water systems.
2.2 The SAHP has integral safety devices to protect the product
from internal and external faults. An adjustable digital
thermostat controls the water temperature.
2.3 The SAHP is manufactured in the United Kingdom in an
 
Quality management system.
2.4 Before installing the SAHP System please read this Installation
Manual and information individually supplied with any additional
equipment carefully and ensure all requirements are met.
2.5 The SAHP should be installed and maintained by persons
 
2.6 All systems upon completion should be subjected to the
appropriate local and national water pressure test requirements,
or, to not less than 1.5 times its maximum working pressure for
one hour. Systems containing plastic pipework should be pressure
tested in accordance with the pipe manufacturers
instructions. It is also recommended that the existing system
be pressure tested for water tightness before commencing work
in order to ascertain the condition of the system.
!
Care should be taken when moving the product. Check the weight before any lifting.
This is for the safety of the installer and customer. Ensure the product and in particular the
box are installed in a safe location and the mounting structure is adequate to withstand
the additional loads. Take care when moving equipment to ensure there is no damage to

IMPORTANT:
This appliance can be used by children from 8 years and above and persons
with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction
concerning use of the appliance in a safe way and understand the hazards
involved. Children should not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
SECTION 2

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HEALTH AND
SAFETY
2.7 Solar Assisted Heat Pumps must be stored in the supplied
packaging in an upright orientation and should be stored in a dry
environment. The equipment should always remain in an upright
position during transport and installation. If turned on its side,
return the box to the upright position, check the compressor for signs
of leakage and leave to rest for 12 hours, before turning the unit on.
SAHP declines any responsibility as regards damages deriving from
incorrect transportation.
2.8 If transporting in the horizontal orientation, ensure the unit is laid down
on it’s left hand side, so that the left hand side is facing the ground.
Failure to do so may cause permanent damage. SAHP declines any
responsibility as regards damages deriving from incorrect
transportation.
2.9 Care should be taken when moving the product. Check the weight
before any lifting. This is for the safety of the installer and customer.
Ensure the product is installed in a safe location and the mounting
structure is adequate to withstand the additional load. Take care when
moving the equipment to ensure there is no damage to the

2.10 Safe manual handling and lifting procedures must be used when
carrying products.
!
SECTION 2

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!
DESCRIPTION
OF THE SYSTEM
3.1 The SAHP heat pump water heater (SAHP) consists of a Solar Assisted
heat pump, coupled with either a 32, 54 or 79 gallon capacity hot
water storage tank. The Solar Assisted Heat Pump is integral to and
positioned on top of the unit within the unit casing.
3.2 The SAHP is designed to heat the domestic hot water within the
tank up to 130O
individual installation, pipe lengths and insulation. It uses an exterior
aluminium panel (evaporator) to absorb energy from the ambient air.
A copper coil(condenser) is wrapped around the external wall of the
inner cylinder which heats the water inside the cylinder. The product

With these features the SAHP is designed to have a long, trouble free
life.
3.3 The SAHP has integral safety devices to protect the product from
internal and external faults. An adjustable digital thermostat, locted at
the front of the SAHP controls the water temperature.
3.4 The SAHP is designed to store potable water supplied from the public
mains with a maximum of 200 p/m NaCL.
3.5 The SAHP has a built in timer which once a week heats the water in
the cylinder above 140OF to provide pasteurization.
3.6 The SAHP is manufactured in the United Kingdom in an
  
CSA.
3.7 SAHP supplies an Installation Kit which contains items that will be
needed on the installation of the SAHP’s refrigeration and plumbing
circuits.
SECTION 3

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!
SECTION 3
DESCRIPTION
OF THE SYSTEM continued

Maximum cylinder volume (US gal)
Mean thermal capacity (BTU/hr)
power consumption (W)
Operating current (a)
Voltage (v) / frequency (Hz)
Operating temperature range (ºF)

Max. Hot water temperature (ºF)

Dimensions (height x width x depth(“)
Clearances Top/front (“)
Max water circuit working pressure (psi)
Cold water input connections (“)
Hot water output connections (“)

Single panel dimensions (h x w x d ”)


panel input / output

Sound Power Level

3.8
SAHP 300
79
2580-6800
Typically 600
4-5
220 - 240, 50/60
32-105
R134a/513a / 2.64
130
322/983
84.6 x 25.6 x 25.6
4/15
45
3/4
3/4
17.64
66.9 x 31.5 x 1
33.06
66.9 x 31.5 x 4
3/8 / 3/8


(GWP) 1430 / 631
SAHP 130
34
2580-6800
Typically 600
4-5
220-240, 50/60
32-105
R134a/513a / 2.64
130
183/470
50.8 x 21.7 x 21.7
4/15
45
3/4
3/4
17.64
66.9 x 31.5 x 1
33.06
66.9 x 31.5 x 4
3/8 / 3/8


(GWP) 1430 / 631
SAHP 200
52
2580-6800
Typically 600
4-5
220-240, 50/60
32-105
R134a/513a / 2.64
130
234/675
66.1 x 23.6 x 23.6
4/15
45
3/4
3/4
17.64
66.9 x 31.5 x 1
33.06
66.9 x 31.5 x 4
3/8 / 3/8


(GWP) 1430 / 631

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4.1 The SAHP must be installed on a stable base which must be capable
of supporting the weight when the cylinder is full of water.
4.2 Access for maintenance of all equipment should be considered when
positioning the cylinder. Care should be taken that the immersion
heater can be withdrawn for servicing if required these are 15” long.
Relevant local and national standards should always be followed when
installing discharge pipe work from the safety valves.
4.3 We recommend that the hot and cold water requirements of the
property and user are ascertained before the installation of the SAHP.
4.4 The minimum incoming cold water mains inlet requirements for the

4.5 Adjustable pressure reducing valve factory set at 43.5 psi is supplied

to the cylinder. The pressure reducing valve will deliver maximum of
13 US gal per minute.
4.6
to eliminate the formation of limescale in the system.
4.7 Do not install the equipment in the following places as they will lead
to a malfunction of the equipment: areas with corrosive gases,


materials or gases, other special environments.
PLUMBING
INSTALLATION
SECTION 4

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SECTION 4
PLUMBING
INSTALLATION continued
4.8
A
B
C
D
E
F
G
H
I J
K
L
M
N
O P Q R
S
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
Evaporator panel
SAHP
Hot water outlet
Pressure & temperature relief valve
Dual thermostat
Sensor pocket

Immersion heater
Boiler return
Cold water in
Drain
Tundish
Pressure relief valve
Expansion tank
One way valve
Pressure reducing valve
Isolating valve
Cold main
Isolating valve
Fig

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PLUMBING
INSTALLATION continued
4.9
supply to the SAHP before the adjustable pressure reduction valve.

4.10 It is good practice to position the mains inlet control manifold at the
top of the unvented unit to ensure that the cylinder does not have to
be drained down for the purpose of maintenance.
4.11 The expansion vessel can be mounted in any Orientation. Access
must be available to the top and bottom of the vessel. The vessel

remember that the vessel will get much heavier once it has water in it.
4.12 For mixer showers and taps a balanced cold feed at the same pressure
as the hot feed may be necessary. A 3/4” balanced connection on
the inlet manifold is provided for this purpose. Pipe work should
initially run in 3/4” then this can be reduced where necessary.
4.13 NOTE: We highly recommend installing a thermostatic
mixing valve in system where the set point temperature of
either the heat pump or any heat sources connected to the
boiler coil are set to 120OF or above.
4.14 All exposed pipe work should be insulated and additional
considerations should be taken to protect the unit from frost damage.
Particular care is needed if the cylinder is to be installed in an exposed
location such as an out building or garage.
4.15 

as they may work loose during transportation and positioning.
All of the pipe work connections on the cylinder are either 3/4”
compression or 3/4” copper tube should only be used to
connect to these connections. Good working practices should be
used when preparing pipe work such as using correct pipe cutters
and de-burring.
4.16 The boiler coil connections supplied are compression connections.
The boiler circuit must be positively pumped, gravity circulation will
not provide the required heat transfer through the coil.
SECTION 4

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SECTION 4
PLUMBING
INSTALLATION continued
4.17 The boiler coil has a maximum working pressure of 50psi.
With pressurized boiler circuits an additional expansion vessel
needs to be sized to suite the circuit volume and installed along

4.18 The boiler coil connection must be complete with thermostatic
temperature controls. Uncontrollable heat sources such as wood
burning store are not suitable. The included two port motorised zone

4.19 
the latest version of relevant local and national standards.
4.20 
43.5psi. This is the same as the setting of the pressure reducing
valve. The valve is a Schrader type. If the pressure reducing valve
setting is amended, the expansion tank pressure must be
amended to match the same settings.
4.21


Close the cold water supply full bore isolating valve. Completly drain the
tank (outlets may need to be opened during this process.) Open the

repeat until water runs clean from the cylinder.

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5.1 Aluminum Panel (evaporator) Connections


connection of the panel to the SAHP.



No soldering or brazing of the copper
line connecting the Evaperator panel to the SAHP is
permitted. The heat pump liquid line must be correctly connected
to the panel liquid inlet. Incorrect orientation will resort in compressor
failure 
 
 
5.2 Panel Location
The evaperator panel can be located facing any aspect.
On either an exterior wall or pitched roof. If the panel is installed

kits in accordance with relevant local and national standards.
5.3 The evaperator panel can be installed in a vertical
(portrait) position or horizontal (landscape) orientation
but there must be a minimum of a 30O tilt. the panel
 
 
 
lubricating oil
NOTE: Vertical panel orientation offers optimum

panel.
NOTE: For increased performance, install the panel
parallel to the prevailing wind allowing the air to pass
freely over the surface of the panel.
REFRIGERATION
INSTALLATION
Liquid
(inlet)
Gas (outlet)
Fig 2
SECTION 5

SAHP - Installation Manual |13
V3 June 2021US - SD667052
SECTION 5
5.4 Panel Fixing


installers pack.
5.5 Fix the L brackets to the evaperator panel as shown in

5.6 Fix and secure the evaperater panel to a wall as show in

NOTE: Ensure that the SAHP is connected to the evaperator

in compressor failure and will invalidate any guarantee.
NOTE: Do not paint over the panel. This will decrease

GAS
OUTLET
ALWAYS
DOWN
GAS
OUTLET
NEVER
UP
Fig 3
REFRIGERATION
INSTALLATION continued

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V3 June 2021US - SD667052
5.7 Refrigeration Connections
 
 
that connect the SAHP to the evaperator panel.
 
 
be connected to the corresponding aluminum panel liquid line.
Incorrect orientation WILL result in compressor failure. To help
eliminate leaks, use refrigeration oil on the thread of the
 
5.8 Pipework Installation
All refrigeration pipework should be installed in accordance
with ISO 5149.
5.9 The SAHP is factory pre-charged with refrigerant R134a / 513a
 
way between the SAHP and the thermodynamic Panel.
Bolt
Double Panel
Single panel L bracket
Nut
Wall
50 mm Spacing
Fig 4
Double panel L bracket
Single Panel
50 mm Spacing
Wall
BoltNut
BoltNut
REFRIGERATION
INSTALLATION continued
SECTION 5
Fig 5
FRONT VIEW
Liquid line (left hand side)
Suction (gas) line (right hand side)

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5.10 The pipe length can be extended up to 50 foot each way.
However for every extra 3 ft of physical separation between
 
added. The minimum pipe length between the panel and the
SAHP is 10 ft.
5.11 A double panel can be installed instead of a single panel.
If a double panel is used an additional 3.52 ozs of refrigerant
gas is required to speed recovery time by up to 10%, this is in
addition to any gas added as per 5.10.
5.12 The refrigeration circuit shall be designed with as few bends as
possible, with no single bend to exceed a 90O bend radiance
to minimize the load loss and it shall be supported properly
with a view not to transmit stresses or vibrations
Fig 5
Suction line (Gas)
Liquid line (Liquid)
Suction line (Gas)
BACK VIEW
BACK VIEW
Ensure that the SAHP IS
connected to the panel
correctly as shown here,
failure to do so can result
in compressor failure and
will invalidate any guaran-
REFRIGERATION
INSTALLATION continued
SECTION 5

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V3 June 2021US - SD667052
5.13 Ensure that refrigeration quality copper pipes are used
to connect the Panel to the SAHP only. It must also be ensured
 
anti-condensation insulation.
NOTE: Direct contact between the refrigeration outlet and
refrigeration inlet line shall be avoided to prevent energy
losses in the system.
NOTE: Ensure the SAHP liquid outlet is connected to the
Panel liquid inlet, and the SAHP suction side is connected to
the Panel gas inlet.
NOTE: Do not loosen or open service ports until all connections
are made and the system has been fully leak checked and
vacuumed.
NOTE: Do not cover the brass plate nuts with the anti-vibration
insulation as this may create a freeze / thaw action on the brass

5.14 Nitrogen Pressure Test
First pressure test the refrigeration circuit with Oxygen Free
Nitrogen. Nitrogen can be introduced using the service port
 
Fig 6
Refrigeration
circuit
REFRIGERATION
INSTALLATION continued
SECTION 5

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V3 June 2021US - SD667052
5.15 Fill the system to 115psi, hold and monitor for 45 minutes.
Check all the refrigeration connections with a leak detector.
If during the 45 minutes of monitoring the pressure in the
 
the test. Repeat if necessary until pressure is maintained for the
45 minutes.
NOTE: Ensure through the process that the pressure does not
exceed 145psi in the Evaperator Panel and/or the pipe work
5.16 Vacuum
Once the pressure test has been successfully completed and
 
be vented. The vacuum pump must be connected into the
service port to begin vacuuming / evacuating the system.
Vaccum the system to 0.5 torr (500 microns) for a minimum of
45 minutes.
5.17 Releasing Refrigerant
Once the System has been successfully pressure tested and
 
R134a / 513a refrigerant gas.
5.18 To do this use a 4mm allen key and rotate both service port
valves counter clockwise until fully open. See note below.

gas line service port
Thermostatic expansion
Valve (TEV)
Compressor
Capacitor
H/P safety switch
(auto reset)
Service Ports (3/8”)
Fig 7
REFRIGERATION
INSTALLATION continued
SECTION 5

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V3 June 2021US - SD667052
6.1 The SAHP shall be electrically connected once all the refrigerant
connections and plumbing connections are completed. All electrical
work is to be carried out in accordance with the NEC standards,
latest issue or local codes of practice as applicable. Ensure to also

6.2 The power supply of the SAHP is single phase: 220V - 240V / 50Hz

isolated and protected by an appropriately sized fuse (13Amps)
NOTE: In Area’s with 110V branch circuits within the home, you will
be required to install a dedicated single phase 220 - 240V circuit
from the electrical consumer panel to provide 220 - 240V power
supply to the SAHP. Be sure to clearly label the wires 220 - 240V on
each end for safety.
NOTE: In areas with 4 conductor L1, L2, N and G wiring, connect L1
to L, L2 to N and G to ground.
6.3 The power supply of the integral Immersion Heaters is single phase:

manufacturers supplied immersion heater. Immersion heaters should
not have a higher capacity than 5000btu/1.5kW if directly connected to
the Heat Pump controller. If Immersion Heaters with a capacity higher

to a separate fused switch. Also available are 3kW/10000btu and

distributer.
ELECTRICAL
INSTALLATION
SECTION 6
Electrical
connections
Fig 8
6.4 Each immersion comes complete with integral control thermostat
and a high limit cut-out.

SAHP - Installation Manual |19
V3 June 2021US - SD667052
Fig 9
ELECTRICAL
INSTALLATION continued
SECTION 6
DIMS
ALL SHARP EDGES AND BURRS TO BE REMOVED
TOLERANCE UNLESS SPECIFIED
TITLE
DIMS
3rd ANGLE PROJECTION
TOLERANCE UNLESS SPECIFIED
TITLE
mm
DO NOT SCALE PRINT
HOLES TO BS 4500 E12
1:2
SCALE
COM
SENSOR
NL
OUT 2
OUT 1
N/O
N/C
N/O
4
COM
COMPRESSOR
N L
BR 1.0
B 1.0
MAINS CABLE
BR 1.0
B 1.0
COVER EARTH
G/Y 1.0
COMP
G/Y 1.0
NTS
WIRING DIAGRAM
MAGIC BOX UL
ADD LINK R 1.0
NOTES
0.5 = 0.5mm² CONDUCTOR SIZE 1.0 = 1.0mm² CONDUCTOR SIZE ETC
CIRCUIT
B
BR
SWITCH
B 1.0
FRONT TERMINALS
REAR TERMINALS
KLIXON CAPACITOR
BR 1.0
R 1.0
G/Y 1.5
SWITCH
HEATER TERMINALS
CAPACITOR
G/Y 1.5
BR 1.5
B 1.5
IMMERSION HEATER
L N E
MAINS
CABLE
IMMERSION HEATER
E L
N
HP SWITCH
SENSOR
BASE EARTH
Prb 1
2
B 1.0
B 1.0
BR 1.0
G/Y 1.0
DIGITAL STAT
5 8
R 1.0
HP SWITCH
GR 0.5
2 1
3
DIGITAL THERMOSTAT
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 22 23 24 25 26 27 28
V 0.5 O 0.5
R 0.5
G/Y 1.0
BR 1.0
P 1.0
P 1.0
W 1.0
W 1.0
G/Y 1.0
27
1817
28
21
19
20
L
N
B Blue
Br Brown
G/YGreen/Yellow
R Red
Gr Grey
O Orange
V Violet
P Pink
W White
SUPPLY
C N/O
OUT 4
C N/O
OUT 2
C N/O C N/C N/O
OUT 3OUT 1
B 1.0
B 1.0
BR 1.0
GR 0.5
Wiring
diagram

20| SAHP - Installation Manual
V3 June 2021US - SD667052
ELECTRICAL
INSTALLATION continued
SECTION 6
PV
connectivity
6.5 
drain the tank. disconnect the immersion wiring before unscrewing
the immersion heater. Screw in the new immersion heater - reconnect

6.6 Correct wire sizing must be carried out based on the power, wire
length and wire enclosures however in most domestic applications

to relevant local and national standards should be used.
6.7 Do not energize the immersion heater until the cylinder has been

6.8 Do not operate the immersion heater if any cleaning agents are in the
cylinder as this will also cause premature failure of the immersion element.
6.9 The SAHP Heat Pump controller has the functionality to connect to a
Solar PV PV inverter system. If you are not connecting the SAHP to a PV
Inverter proceed to section 7.
6.10 To conn ec t th e SA HP t o a PV i nv er te r a 2 co nd uc to r wi re i s re qu ired.
There is no maximum or minimum distance requirements of this 2
conductor wire. The cable will be carrying a voltage free signal.
6.11 
as per the wiring diagram, located on the SAHP controller sensor
terminal located on the top right hand side of the back of the
controller. Connect the other end of the two core cable to a
N/O relay of the PV inverter.
6.12 In cases where a N/O relay is not available within the inverter,
the controller can be connected via a 2 conductor voltage free
wire to an independent 7 days timer instead which allows the
 
hours which can correspond to the assumed maximum PV energy
generation.
6.13 When the PV inverter generates electricity, the N/O relay will
close, which will subsequently signal the controller to
enter Eco Mode, a programme in which SAHP will automatically
raise the set point temperature input of the controller of the water
within the connected cylinder to 140°F and re initiate heating
again once the water temperature falls below 135°F.
Controller