Rinnai HydraHeat ME275685E20H User manual

HydraHeat™ Hot Water Heat Pump
Installation guide
ME275685E2OH RHPN36IH RHPN36IA275E20
+=

Important
This hot water system shall be installed in accordance with:
- Manufacturer’s installation instructions
Current:
- AS/NZS 3000 Electrical Standards
- AS/NZS 3500 Plumbing and Drainage Standards
- AS/NZS 5149 Refrigerating Systems Operation
- AS/NZS 5125.1:2014 Heat Pump Water Heaters
Appliance must be installed, commissioned, serviced, and removed only
by licensed tradespeople.
Not suitable as a spa or swimming pool heater.
Not suitable for hydronic applications.
Warning
Improper installation, adjustment, alteration, service, maintenance, and
removal can cause property damage, personal injury or loss of life.
This system 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.
For more information about buying, using, and servicing of Rinnai
appliances call: 0800 RINNAI (0800 746 624).
Rinnai New Zealand Limited
105 Pavilion Drive, Mangere, Auckland
PO Box 53177, Auckland Airport, Auckland 2150
Phone: [phone]
Email: [email protected]
Web: rinnai.co.nz
youtube.com/rinnainz
facebook.com/rinnainz

Important information............................................4
Before you start ....................................................5
Specication .........................................................6
Dimensions (mm) .................................................7
Data labels............................................................8
Schematic.............................................................9
Location................................................................10
Clearances ...........................................................12
Connections and plumbing arrangement .............13
Storage and delivery temperatures ......................16
Water quality.........................................................17
Electrical supply and connections ........................19
Wiring diagram header unit ..................................20
Wiring diagram cylinder........................................21
Connecting the header and cylinder.....................22
Commissioning.....................................................25
Error codes...........................................................27
Manual purging procedure....................................29
Appendix: Commercial plumbing arrangements...30
Contents

4| HydraHeat installation guide: 31114-A
Important information
WARNING
Installation and service to be carried out by a licensed tradesperson.
DO NOT operate this system before reading the operation and installation information.
DO NOT place articles on or against this appliance.
DO NOT store chemicals or ammable materials near this appliance.
DO NOT operate with panels or covers removed from this appliance.
DO NOT activate heating elements unless full of water.
For safe operation this water heater is tted with:
• A combination Temperature & Pressure Relief (TPR) Valve.
• One thermostat and one over-temperature control for each heating element.
Operation of the over-temperature cut-out indicates a possibly dangerous situation. It must only be
reset by an authorised person after the appliance has been inspected and serviced as required.
DO NOT tamper or remove any of the safety devices noted above.
DO NOT operate this water heater unless all these devices are tted and in working order.
TEMPERATURE AND PRESSURE RELIEF (TPR) VALVE
A TPR valve must be tted. It must be installed in accordance with these instructions.
WARNING
The valve and drain pipe must never be sealed or blocked.
DO NOT supply heat to any ttings when making connections. Ensure all pipes are clean and
free from any foreign matter before making connections. Check water leaks at all joints. Damage
caused by leaking joints is not covered by warranty.
DO NOT build this appliance in such a way that it can not be easily serviced or replaced. Additional
cost incurred by such installations is not covered by warranty.
MAKE SURE the cylinder is full of water before energising the system. Failing to do so can cause
irreparable damage to the element and sensors.
Header unit handling
The header unit must only be handled / lifted using the hand holds
provided. Two exist on the outside, and the other two can be accessed
by removing the front access panel (two screws). NEVER place the
header on its side.
AS/NZS 60335.2.40
WARNING
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
The appliance must be installed as specied in this installation guide, without continuously
operating ignition sources in the vicinity.
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.

HydraHeat installation guide: 31114-A | 5
Unpack the appliance and components, and remove all transit packaging. Check for damage. DO
NOT install any damaged items. Check all components have been supplied, refer below.
Read these instructions to get an overview of the steps required before starting the installation.
Failure to follow these instructions could cause a malfunction of the appliance. This could result in
serious injury and/or property damage.
Header unit
Ensure the header unit is delivered the right way up as indicated on the carton. If the unit arrives
inverted immediately place the right way up and allow one hour for rebalancing of the oil in the
system. If, on inspection, oil has pooled out of the pipes DO NOT install.
Before you start
Electrical supply
Rinnai does not endorse the use of power supplies that supply clipped waveform AC power to the
appliance and will not warrant any product connected to such a supply. Similarly if an appliance is
supplied with an over-voltage / overcurrent supply, this is also not warrantable.
Voltage and frequency that matches the NZ legislative requirement for 230 V AC mains supply:
- Must be a standard 230 V nominal voltage
- Must be kept within 6% of that voltage, except for momentary uctuations
- The frequency of electricity supplied must be maintained with 1.5% of 50 Hz, except for
momentary uctuations
- Must conform to a full sinusoidal AC waveform
Regardless of the means of that power generation, normal warranty provisions will apply. This
means if your generator or inverter is able to provide power to the HydraHeat with the specication
above, then the appliance will function correctly with a low chance of power supply related issues.
Cylinder components
• TPR valve, insulation covers, and cable ties
• TPR brass reducing socket (20-15) x1
• Brass extension socket and plugs (20 mm) x 2, to plug the unused hot and cold connections
• Instructions
• Instructions
• Fixing screws x 4
Header components

6| HydraHeat installation guide: 31114-A
Specication
Operating temperatures -10 °C to +42 °C
Outlet water temperature Normal: 60 °C
Boost: 70°C
Eco1: 55 °C
Eco2: 50 °C
Storage capacity 275 L
Maximum valve pressure settings:
• TPR (supplied)
• Cold water expansion valve
• Pressure reducing valve
• 850 kPa, 99 °C, 10 kW
• 700 kPa
• 550 kPa
Coe󰀩cient of performance (COP) 4.7 (Operating conditions 19 °C ambient, 19 °C water, eco mode 55)
Rated heat pump input/output1802 W / 3725 W
Max. current (heat pump standard mode) 4.6 A
Max. current heat pump (element only) 9.6 A
Max. current (boost mode) 14.2 A
Backup resistance element rating capacity 2000 W
Max. heating capacity 5500 W - boost mode
Min. inlet water pressure 100 kPa
IP rating IPX4 header and tank
(protects from splashing water, no matter the direction)
Sound pressure level at 1 m approx. 45 dB(A)2
Power supply 230-240 V 50 Hz
Weights Header - 38 kg (net weight), 47 kg (packaged weight)
Cylinder empty - 87.5 kg, cylinder full - 362.5 kg
Full system weight - approx. 400 kg
Refrigeration type / mass (kg) R-290 / 150 g
Refrigeration classication A3 ammable
1In standard and Eco 50/55 modes, the heat pump provides 100% of the heating within the operating temperature range. Outside these limits the
electric element will operate.
2 Sound pressure level measured at 1 m distance from the water heater in a free eld. Appliance operated in standard mode (60 °C) at an ambient
temperature of 19 °C)
Product description
Designed and made in New Zealand, the Rinnai HydraHeat is designed primarily
for outdoor installations. It may be possible to install the HydraHeat internally if the
proposed location is not an occupied space as dened by AS/NZS 5149, refer p.10
for more information.
The Rinnai HydraHeat is factory preset to ‘Standard’ mode—continually heating
water to 60 °C.
The system is provided as two separate components. The storage cylinder, with
left or right handed plumbing connections, can be purchased on its own with the
purchase and addition of the header at a later stage.
Scope of use
Primarily designed for residential applications, but can be used for smaller
commercial applications. Must be installed in a location complying with clearances
stated on p.10 and located as close as practicable to the most frequently used hot
water outlets to reduce the delay for hot water delivery.
Not suitable as a spa or swimming pool heater, or for hydronic applications. Hard
or acidic water will need to be treated to use this product, refer water quality p.17.

HydraHeat installation guide: 31114-A | 7
Dimensions (mm)
692
1750
261
987
Inlet port
Outlet port
Inlet port
Outlet port
TPR port
25°
Inlet/outlet
ports
Inlet/outlet
ports
TPR port
510
1240
Condensate
connection
Hot water recovery rate = 89 L/h
Recovery rate calculated at Eco 55, 19 °C ambient temperature, 41 °C temperature rise.
HydraHeat cylinder has dual
plumbing connections.
Hot, cold, and drainage
connections all ¾ “ (20 mm)

8| HydraHeat installation guide: 31114-A
Data labels
Rinnai Electric Storage Water Heater 275 L
Model ME275685E20H
Date of manufacture yyy/mm/dd
Storage water heater capacity (Litre) 275
Dimensions (mm) Ø685 x 1265
Heated element rated power input (kW) 2.1-2.3
Electrical power supply 230-240 V ~ 50 Hz
Maximum working pressure (kPa) 850
TPR valve pressure rating (kPa) 850
TPR valve rating (kW) 10
Maximum thermostat setting (°C) 75
Vitreous enamel class X
Ingress protection rating IPX4
Made in China for, and to the specication of Rinnai NZ Ltd
Rinnai Hot Water Heat Pump
Model RHPN361H
Refrigerant R290
Refrigerant operating pressure 2.5 MPa maximum
Water operating pressure 100 kPa minimum
700 kPa maximum
Water inlet temperature 5 °C minimum
30 °C maximum
Water outlet temperature 50 °C minimum
60 °C maximum
Power 230-240 VAC 50 Hz, 16 A
IP rating IPX4
Manufactured date xx xx
Manufactured by Rinnai NZ Ltd, Auckland NZ

HydraHeat installation guide: 31114-A | 9
Schematic
• Two piece design, MEPS rated, dual handed outdoor hot water cylinder, corrosion proof plastic
heat pump base
• Flexible hose connection tank-top module plus single mains rated connector (reduced
connections for the installer)
• All weather OLED (organic light emitting diode) display, capacitive (uses conductive touch of a
human nger)
Head unit water
connection manifold
TPR Valve
Cylinder outlet port
Connector housing and
flexible hoses Cylinder outlet port
Cylinder inlet port
Cylinder inlet port
Cylinder relay PCB
Lower cylinder
temperature
thermistor
Upper cylinder
temperature
thermistor
Mains power connection
Cylinder/head power
connection
User interface
Condenser
Condenser insulation
Water pump
Distributor
Reversing valve
Expansion valve
and coil
Data plate
Fan
Evaporator
Compressor
capacitor
Insulation wrapped
compressor
Pressure
transducer
Divider panel between
compressor and evaporator
Main PCB
Air vent
Thermistors to monitor
conditions
Head unit
data plate
Cylinder data plate

10 | HydraHeat installation guide: 31114-A
Location
As the heat pump contains ammable refrigerant, ensure the installation location complies
with the requirements of AS/NZS 5149. DO NOT install the unit in a location that may be
exposed to combustible gas leaks. If combustible gas accumulates around the unit, it may
cause a re.
The HydraHeat should be placed as close as practicable to the most frequently used hot water
outlet point or points to minimise the delay time for hot water delivery. For installations where the
distance between the heat pump and the outlets is considerable, a ow and return system can be
used to reduce the waiting time for hot water delivery.
The HydraHeat is designed primarily for outdoor installation. It may be possible to install the
HydraHeat internally if the proposed location is not an occupied space as dened by
AS/NZS 5149. An extract has been provided below for those that do not have access to this
standard.
3.2.6
occupied space
space in a building bounded by walls, oors, and ceilings and which is occupied for a
signicant period by persons.
Note 1 to entry: Where the spaces around the apparent occupied space are, by construction
or design, not airtight with respect to the occupied space, these can be considered as part of
the occupied space, e.g. false ceiling voids, crawl ways, ducts, movable partitions, and doors
with transfer grilles.
The HydraHeat, by the above denition, would not be suitable for installation into an attached
garage.
Examples of an unoccupied space:
• Adequately ventilated plant room
• Adequately ventilated shed
Internally installed units will need adequate ventilation as the appliance has a cooling e󰀨ect
on the installed space, operating noise should also be considered.
Avoid installing:
• Directly below an opening window, the system discharges a large
volume of cold air from the top of the unit.
• In areas where the air inlet and outlets could get blocked / clogged.
• In highly planted areas where falling leaves and other debris could block the air vents or
potentially damage the unit.
• In areas with multiple structures, for example fences, concrete walls, retaining walls, screens
etc unless these are well ventilated to let the cold air escape.
The HydraHeat can be installed in coastal locations, but not immediately facing salt spray or
prevailing winds. It needs some form of shelter otherwise salt will quickly clog the system. Think of
a car and whether you would be comfortable permanently placing it in a location.
NOTE
WARNING

HydraHeat installation guide: 31114-A | 11
Noise
Ensure that the installation location complies with local noise regulations regarding
neighbouring properties. The location must consider noise impact on living areas. Avoid
positioning near bedrooms or neighbours bedrooms. Although the running noise level is
low it can be expected that the heat pump will run during the night. The timer function can
be used to limit operating hours if noise is a concern.
• DO NOT install the unit less than 3 m from a neighbour’s window (windows are less soundproof
than walls, and they can be opened), or door other than a garage door or shed.
• DO NOT place the unit near boundary lines.
• DO NOT place any objects on top of the unit, this could cause excessive vibration and increase
noise levels.
Orientation
The heat pump is designed for open air operation, requiring su󰀩cient air supply to maintain
operating e󰀩ciency.
The air inlet and outlet of the heat pump must be positioned away from prevailing winds and must
be provided with su󰀩cient clearances as shown on the next page.
Consideration to the orientation of the control interface is important as the homeowner / end user
will need adequate room to view and interface with the control pad.
Accessibility
The heat pump MUST be installed in a vertically upright position. All components must be
accessible without the use of a ladder or sca󰀨old.
Ensure the pressure and TPR valve, and any access covers have su󰀩cient clearances and are
accessible for service and removal. The information on the rating plates MUST also be readable.
Base requirements
The heat pump must be installed on a level and stable base capable of withstanding the weight of
a full system, refer weight on p.6. The structure must not shift.
Where there is potential of damage occurring from leaking water, a suitable safe tray (overow
tray) and drain must be installed in accordance with AS 3500.4.

12 | HydraHeat installation guide: 31114-A
Clearances (mm)
2250 Min
400 Min
500 Min
400 Min
400 Min
400 Min
10 Min
Condensate
As detailed in ‘Maintenance and servicing’ in the operation guide, anodes should be changed
every ve years or more frequently in hard or aggressive water areas. The anode will be
approximately 1 m in length. In an ideal world there would be at least a tank height clearance
above so the anode can be inspected and/or replaced. If not available then the whole system
may need moving to gain appropriate access.
NOTE

HydraHeat installation guide: 31114-A | 13
Connections and plumbing arrangement
Condensate: During normal operation, condensation occurs in the heat pump as air across the
evaporator is cooled. In high humidity locations a large volume of condensate can be generated,
this needs to be plumbed into a condensate drain and gully trap—19 mm tapered connection (clear
exible PVC drain hose)
Condensate position is on the top left, refer top view drawing on previous page.
The cylinder component of the system must be installed in accordance with G12/AS1, and
AS/NZS 3500.4:2018. For service and maintenance, please allow su󰀩cient room for access to
covers and valves. All hot water pipe work should be insulated with polythene foam or equivalent
insulation to optimise performance and energy e󰀩ciency. This includes all water ttings.
All hot water supply parts must comply with AS/NZS 3500.4 and G12/AS1.
For an appliance intended to be permanently connected to the water mains and not connected by
a hose set.
Outlet port (hot water to property)
Hot water connections: 20 mm BSP
female connection
Inlet port (cold water from mains)
A drain o󰀨 tap or line must be tted to the
inlet of the water heater.
If the water pressure exceeds the rated
pressure, a pressure reducing valve is to
be tted to the installation.
TPR
Outlet port
Inlet port
WARNING
• The valve or drain valve outlet pipe must not be sealed or blocked.
• Valves with pressure ratings other than those listed in this manual must not be used.
• A discharge pipe connected to the pressure relief device is to be installed in a
continually downwards direction and in a frost free environment.
Cold water inlet 20 mm BSP female
connection
Insulate all water pipes and
connections to prevent freezing.
Important
• DO NOT use thread tape on
any of the connections, this
can break down and cause
blockages in the system.
• Strainer must be installed in
the system.

14 | HydraHeat installation guide: 31114-A
TPR valve (850 kPa, 99 °C, 10 kW)
The supplied TPR valve must be installed to ensure safe operation. Failure to do so can potentially
cause injury and damage the unit.
The TPR valve should be connected to a vertical discharge pipe that enables
water to ow downwards at all times. The TPR discharge pipe outlet should
be positioned such that the outlet hot water cannot cause injury to persons or
damage to the building. It should be insulated with the black moulded insulation
pieces (and clip ties) provided with the cylinder to reduce heat loss.
Safe tray
Where there is potential of damage occurring from a leaking system, a suitably drained safe tray is
tted as per AS/NZS 3500.4:2015 5.4 and G12/AS1 6.11.3.
Pipe work
It is the installer’s responsibility to adequately size the distribution pipe work in a property to ensure
su󰀩cient performance from all outlet ttings. Water pipe sizing should be performed in accordance
with AS/NZS 3500.4 and/or G12/AS1. Pipe sizing and valve selection must be performed to allow
for the water supply pressure.
DO NOT drill anything into the water heater, this could damage critical components and cause
corrosion.
Seismic constraint - cylinder component of the system
NZBC B1.3.2 requires building elements (including storage water heaters) to be adequately
supported including support against earthquake forces. ‘G12 Water Supplies 6.11.4 Structural
Support’ has been used as an acceptable solution however this is geared towards indoor cylinders.
We suggest using NZS 4603 1985 as an alternate solution as this provides a table of minimum
fastenings required to secure water heaters, and also an illustration:
Fig 1 METHOD FOR SECURING WATER HEATERS AGAINST SEISMIC FORCES
(b) Unenclosed against a wall
Below is an example of how seismic constraint could be installed
on a weatherboard house
TPR insulation

HydraHeat installation guide: 31114-A | 15
Cold to building
Cold inlet
1
1
1
Temperature & pressure relief valve 850 kPa Expansion control valve 700 kPa
Pressure reducing valve 500 kPa Shut-off valve
Gate valve Expansion chamber
Y strainer Sprint-type non-return
Union
Cap
Tempering valve
55 °C* to sanitary fixtures
for personal hygiene,
shower, bath, basin, bidet
* 50 °C to new sanitary fixture installations from Nov 2024
1To drain
Ensure a strainer is installed. If not, debris could block the non-return valve. This will stop the ow
and cause the heat pump to stop operating.

16 | HydraHeat installation guide: 31114-A
Storage and delivery temperatures
Storage temperature
To meet the New Zealand Building Code requirement1to disinfect water for legionella bacteria,
the system has been set to ‘Standard’ mode, continually heating the water to 60 °C. If the system
operates as a normal electric tank the factory thermostat preset temperature is 70 °C, with a range
of 60-75 °C. If in ‘Eco’ mode the system will run a disinfection cycle once a week to raise the
heated water in the cylinder to 60 °C.
WARNING
1Clause G12.3.9, Acceptable Solution G12/AS1 6.14.3
2 50 °C to new sanitary xtures from November 2024
Hot water temperatures
NZBC G12.3.6 states that “Where hot water is provided to sanitary xtures and sanitary appliances,
used for personal hygiene, it must be delivered at a temperature that avoids the likelihood of
scalding.”
In order to prevent scalding the delivered hot water temperature at any sanitary xture used for
personal hygiene shall not exceed:
• 45 ˚C for early childhood centres, schools, aged care, institutions for people with psychiatric or
physical disabilities, hospitals; and
• 55 ˚C for all other buildings2(Note: AS/NZS 3500.4 which is cited in G12/VM1 has a maximum
temperature of 50 ˚C).
Sanitary xtures used for personal hygiene includes showers, baths, hand basins and bidets.
In kitchens and laundries, heated water must be delivered to xtures and appliances at ow rates
and temperatures which are adequate for the correct functioning of those xtures and appliances.
The temperature required may be greater than 55 °C.
To comply with these requirements, a temperature limiting device, such as a tempering or
thermostatic mixing valve will be required on all installations.
• The access cover to the element and the thermostat must only be removed by an
electrician or other suitably qualied tradesperson.
• Thermostat settings must only be adjusted by an electrician or other suitably qualied
tradesperson.

HydraHeat installation guide: 31114-A | 17
Water quality
Water chemistry has a direct impact on hot water heaters, a󰀨ecting corrosion protection measures,
or causing scale buildup.
Water quality MUST:
1. Meet the Water Services (Drinking Water Standards for New Zealand) Regulations 2022, or the
relevant Drinking Water Standard at the time; AND
2. Be within the limits shown in the table below.
Water quality outside the limits will void this warranty.
Water quality and impurity limits
TDS (Total Dissolved Solids) <600 mg/L Manganese <0.01 mg/L
Total Hardness CaCO3<200 mg/L Sodium <150 mg/L
Alkalinity 150-200 mg/L Iron <0.1 mg/L
Dissolved (free) CO2<25 mg/L Sulphate <100 mg/L
pH 6.8-7.5 Nitrate <11 mg/L
Chlorides <150 mg/L Alkalinity/Sulphate ratio >1
Free Chlorine <1 mg/L LSI1-1.0-0.8 @65 °C
1Langelier Saturation index—scaling potential of water
Water quality warranty guidelines
Filtration
Where there is discolouration, debris, or silt present in the water, an inline lter must be tted
into the water supply to protect the copper in the HydraHeat header from corrosion. Particulates
and deposits in hot water systems are corrosive to copper and stainless steel and can lead to
premature pitting. The lters must be periodically replaced to maintain the integrity of the system.
Stagnation
Leaving water stagnant in the system will promote corrosion. It is recommended that systems, if
not in use, are ushed on an eight week cycle.
Bore and tank water
Bore and tank water supplies should be considered to be corrosive and should be tested prior to
using the system. Bore and tank water must meet the water quality parameters stated in the above
table.

18 | HydraHeat installation guide: 31114-A
Electrical supply and connections
Connect all LIVE, NEUTRAL and EARTH wires in accordance with the wiring diagrams.
Inspect and ensure all wiring links are secure prior to xing the access cover and turning the power
on.
Once the cylinder is full of water perform an Earth Continuity Test, as outlined in Annex A of
AS/NZS 60335.1.
Electrical access for the tank is via a hole beneath the element cover
for mounting with an approved weatherproof electrical conduit gland
(not provided). The electrical gland must be installed. For entry into
the element cover remove the two xing screws.
The header wiring diagram is on the back of the plastic user interface
screen. Refer to p.22 for details on how to connect the header to the
cylinder—no disassembly required of the user interface.
Phase
(red) Neutral
(black)
Earth
(green)
The electrical connection must be carried out by a
qualied person in accordance with the latest version of
AS/NZS 3000 Wiring Rules.
The heat pump is not tted with a power cord and plug.
It MUST have the supply terminals connected to an
independent, fused AC 230 V 50 Hz power supply with
an isolating switch installed at the switch board, which
shall e󰀨ectively isolate all active supply conductors from
the circuit. Ensure the isolating switch complies with
AS/NZS 3000:2018 4.8.2.3 Isolating Switch.
• The power supply to the heat pump module MUST
NOT be activated until the system is lled with water.
• Household wiring to the system must be capable of
withstanding the appliance load.
• Fixed wiring must be protected from contact with the
internal surfaces of the system.
Electrical access for the cylinder is via a hole in the
lower element cover for mounting with an approved
electrical conduit gland (22 mm, not supplied), this must
be installed. For entry to the element cover remove the
two xing screws.

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20 | HydraHeat installation guide: 31114-A
Wiring diagram header unit
BLUE BLUE
REVERSING VALVE
RED BK
COMPRESSOR
T-AM T-WI T-WO T-DC T-SC T-CR PR1 PR2 TAC EEV RS485 DIN
GREEN
EARTH
15A 3AG FUSE
FAST BLOW
POWER
PUMP
FAN
Rinnai
p/n 31113 Issue B
O
R
Y
BK
M
GY
R
BK
W
GR
RV
R
(C) W
(R) U
(S) V
BK
W
BL
Y
W
BK
-
R
BK
BL
BR
GY
R
EEV
TO CHASSIS
WP
FM
G
W
R
BL
Y
W
W
W
TCR
W
R
BK
PR 1
TSC
W
W
TDC
W
W
TWO
W
W
TWI
W
W
TAM
BK
BK
230 VAC
from Tank
SELV
to /from Tank
BL
BK
GR/Y
R
CMP
MARK DESCRIPTION
TAM Temperature Ambient
TWI Temperature Water In
TWO Temperature Water Out
TDC Temperature Discharge Condensor
TSC Temperature Suction Condensor
TCR Temperature Condensor
WP Water Pump
FM Fan Motor
RV Reversing Valve
EEV Electronic Expansion Valve
Pressure Transducer
Compressor
PR1
PR2 -
TAC -
DIN Digital Input
CMP
MARK DESCRIPTION
BK Black
BL Blue
BR Brown
GR/Y Green/Yellow
O Orange
R Red
W White
Y Yellow
GY Grey