Inter Water INTER HEAT SMART 50IS Service manual

IMPORTANT SAFETY INSTRUCTIONS
Read and follow all instructions
V.280722
HEAT PUMP INTER HEAT SMART
MODELS: 50IS / 58IS / 90IS
Installation & Instruction Manual

2
INTER HEAT SMART
50IS / 58IS / 90IS
/CONTENTS
1. PREFACE
2. SPECIFICATIONS
2.1 PERFORMANCE DATA OF SWIMMING POOL HEAT PUMP UNIT
2.2 DIMENSIONS FOR SWIMMING POOL HEAT PUMP UNIT
3. INSTALLATION AND CONNECTION
3.1 INSTALLATION ILLUSTRATION
3.2 SWIMMING POOL HEAT PUMPS LOCATION
3.3 HOW CLOSE TO YOUR POOL?
3.4 SWIMMING POOL HEAT PUMPS PLUMBING
3.5 SWIMMING POOL HEAT PUMPS ELECTRICAL WIRING
3.6 INITIAL START-UP THE UNIT
4. USE AND OPERATION INSTRUCTION
4.1 FUNCTION OF CONTROLLER
4.2 THE CONTROLLER USAGE
4.3 PARAMETER TABLE
4.4 MALFUNCTION TABLE
4.5 MAINBOARD
5. MAINTENANCE AND INSPECTION
6. APPENDIX
6.1 CABLE SPECIFICATION
6.2 COMPARISON TABLE OF REFRIGERANT SATURATION TEMPERATURE
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6
6
7
8
8
9
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This product has been made to strict production standards to provide our customers with
quality, reliability, and versatility. This manual includes all the necessary information installation
information, discharging and maintenance. Please read this manual carefully before you open
or maintain the unit. The manufacturer will not be responsible if someone is injured or the unit
is damaged, as a result of improper operation, installation, debugging, or unnecessary
maintenance. It is vital The instructions within this manual must bered to. The unit must be
installed by qualified personnel.
The unit can only be repaired by a qualified installer center, qualified personal or an authorized
dealer.
Maintenance and operation must be carried out according to the recommended time and
frequency, as stated in this manual.
Use genuine standard spare parts only.
Failure to comply with these recommendations will invalidate the warranty.
Swimming Pool Heat Pump Unit heats the swimming pool water and keeps the temperature
constant.
Our heat pump has the following characteristics:
1Durable. The heat exchanger is made of PVC & Titanium tube which can withstand prolonged
exposure to swimming pool water.
2 Installation flexibility. The unit can be installed outdoors.
3 Quiet operation. The unit comprises an efficient rotary/ scroll compressor and a low-noise
fan motor, which guarantees its quiet operation.
4 Advanced controlling. The unit includes a micro-controller, allowing all operation parameters
to be set. Operation status can be displayed on the LCD wire controller a remote controller can
be chosen as a future option.
WARNING
Do not use means to accelerate the defrosting process or to clean,
Other than those recommended by the manufacturer.
Do not pierce or burn.
Be aware that refrigerants may not contain an odor.
NOTE The manufacturer may provide other suitable examples or
may provide additional information about the refrigerant.
1PREFACE
INTER HEAT SMART
50IS / 58IS / 90IS

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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 the use of the appliance by a person responsible
for their safety. Cleaning and user maintenance shall not be made by children without
supervision.
Children should be supervised to ensure that they do not play with the appliance.
Please make sure that the unit and power connection have good earthing, otherwise may
cause electrical shock.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or
similarly qualified persons to avoid a hazard.
Do not operate your heat pump in a wet room such as a bathroom or laundry room.
Before obtaining access to terminals, all supply circuits must be disconnected.
An all-pole disconnection device that has at least 3mm clearances in all poles, and has a
leakage current that may exceed 10mA, the residual current device (RCD = GFCI) having a
rated residual operating current not exceeding 30mA, and disconnection must be
incorporated in the fixed wiring in accordance with the wiring rules.
Directive 2002/96/EC (WEEE):
The symbol depicting a crossed-out waste bin that is underneath the appliance indicates that
this product, at the end of its useful life, must be handled separately from domestic waste,
must be taken to a recycling center for electric and electronic devices or handed back to the
dealer when purchasing an equivalent appliance.
Directive 2002/95/EC (RoHs): This product is compliant with directive 2002/95/EC (RoHs)
concerning restrictions on the use of harmful substances in electric and electronic devices.
Make sure that there is a circuit breaker for the unit, lack of a circuit breaker can lead to
electrical shock or fire.
The heat pump is equipped with an overload protection system. It does not allow for the unit
to start for at least 3 minutes after a previous stoppage.
The unit can only be repaired by the qualified personnel of an installer center or an authorized
dealer.
Installation must be performed in accordance with the NEC/CEC by an authorized person only.
USE SUPPLY WIRES SUITABLE FOR 75°C.
Caution: Single wall heat exchanger, is not suitable for potable water connection.
1PREFACE
INTER HEAT SMART
50IS / 58IS / 90IS

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2SPECIFICATION
2.1 PERFORMANCE DATA OF SWIMMING POOL HEAT PUMP
Unit *** REFRIGERANT: R410A
INTER HEAT SMART HEAT PUMP / INTER WATER
Product code 85-040-2204-0901
Model 90IS50IS
10.3 - 6.78
8.67 ~ 26.37
29,600 - 90,000
kW
Btu/h
*Heating capacity
(27/24.3°C)
0.71 - 3.89
kW
A
**COP
*COP
7.1 - 4.8
*Heating Power Input
7.00 - 18.42
23,884 - 62,900
kW
Btu/h
**Heating capacity
(15/12°C)
Compressor Quantity
85-040-2204-0501
8.74 - 5.66
6.44 ~ 14.65
22,000 - 50,000
0.74 - 2.59
6.1 - 4.0
0.82 - 3.91
kW
***COP
***Heating Power Input
4.37 - 3.28
0.65 - 2.71
0.99 - 3.89
kW
**Heating Power Input 0.74 - 2.59
1
8.11 - 4.98
Max current input 22.514.92
6.00 - 12.88
20,472 - 43,981
5.00 - 14.94
17,060 - 51,000
kW
Btu/h
***Heating capacity
(10/6.8°C )
2.84 - 8.89
96,90 - 30,367
Power Supply 208-230V~/60Hz 1Ph
Compressor
Water Flow Volume 33.02GPM
Fan Number
Noise 56
Water Pressure Drop (max)
Unit Net Dimensions(L/W/H)
Rotary
1
See the drawing of the units
see nameplate
19.37
54
mm
Water Connection 48.3
85-040-2204-0581
58IS
9.97 - 5.12
7.06 ~ 16.99
24,100 - 58,000
0.71 - 3.32
9.34 - 4.76
6.26 - 15.57
21,359 - 53,159
4.08 - 3.06
0.80 - 3.55
0.67 - 3.27
15.72
3.26 - 10.87
11,123 - 37,088
23.77
54
48.3
dB(A)
48.3
kPa
Net Weight kg
mm
INTER HEAT SMART
50IS / 58IS / 90IS
Heating:
*Outdoor air temp: 80.6 F° / 75.7 F° / Inlet water temp: 80 F°
**Outdoor air temp: 80.6 F° / 71.27 F° / Inlet water temp: 80 F°
***Outdoor air temp: 50.0 F° / 44.2 F° / Inlet water temp: 80 F°
Operating range:
Running ambient temperature: 19.4 F°~109.4 F°
Running water temperature: 48.2 F°~104 F°

26IS / 36IS
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2SPECIFICATION
2.2 THE DIMENSIONS FOR SWIMMING POOL HEAT PUMP UNIT
Models: 50IS / 58IS
Models: 90IS
453
101
350
615
Water Inlet
Water Outlet
Water Inlet
Water Outlet
1161
490
96
466
790
868
1047.5
Unit: mm
INTER HEAT SMART
50IS / 58IS / 90IS

26IS / 36IS
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3INSTALLATION AND CONNECTION
3.1 INSTALLATION ILLUSTRATION
Gas Trap
Check valve
Presure gauge
Installation items:
The factory only provides the main unit and the water unit; the other items in the illustration
are necessary spare parts for the water system, that are provided by users or the installer.
Attention:
Please follow these steps when using it for the first time:
0pen valve and charge water.
Make sure that the pump and the water-in pipe have been filled with pool water.
Close the valve and start the unit.
The schematic diagram is for reference only. Please check the water inlet/outlet label on the
heat pump while plumbing installation.
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50IS / 58IS / 90IS

26IS / 36IS
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The unit will perform well in any outdoor location provided that the following three factors are
present:
1. Fresh Air 2. Electricity 3. Pool filter piping
The unit may be installed virtually anywhere outdoors. For indoor pools please consult the
supplier. Unlike a gas heater, it has no draft or pilot light problem in a windy area.
DO NOT place the unit in an enclosed area with a limited air volume, where the units discharge
air will be re-circulated.
DO NOT place the unit in shrubs that can block their inlet. These locations deny the unit a
continuous source of fresh air which reduces its efficiency and may prevent adequate heat
delivery.
3INSTALLATION AND CONNECTION
3.2 SWIMMING POOL HEAT PUMPS LOCATION
Normally, the pool heat pump is installed within 7.5 meters of the pool. The longer the distance
from the pool, the greater the heat loss from the piping. For the most part, the piping is buried.
Therefore, the heat loss is minimal for runs of up to 15 meters (15 meters to and from the pump
= 30 meters total), unless the ground is wet or the water temperature is high. A very rough
estimate of heat loss per 30 meters is 0.6 kW-hour, (2000BTU) for every 5 °C difference in
temperature between the pool water and the ground surrounding the pipe, which translates to
about a 3% to 5% increase in run time.
3.3 HOW CLOSE TO YOUR POOL?
INTER HEAT SMART
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3INSTALLATION AND CONNECTION
3.4 SWIMMING POOL HEAT PUMPS PLUMBING
The Swimming Pool Heat Pumps exclusive rated flow titanium heat exchanger requires no
special plumbing arrangements except bypass (please set the flow rate according to the
nameplate). The water pressure drop is less than 10kPa at max. Flow rate. Since there is no
residual heat or flame Temperature, the unit does not need copper heat sink piping. PVC pipe
can be run straight into the unit.
Location: Connect the unit in the pool pump discharge (return) line downstream of all filter and
pool pumps, and upstream of any chlorinators, ozone generators, or chemical pumps.
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow
easy draining of the unit for winterizing and to provide easier access should servicing be
required.
Condensation: Since the Heat pump cools down the air at about 4 -5°C, water may condense
on the fins of the horseshoe-shaped evaporator. If the relative humidity is very high, this could
be as much as several liters an hour. The water will run down the fins into the base pan and
drain out through the barbed plastic condensation drain fitting on the side of the base pan.
This fitting is designed to accept 20mm clear vinyl tubing which can be pushed on by hand and
run to a suitable drain. It is easy to mistake the condensation for a water leak inside the unit.
Note: A quick way to verify that the water is condensation is to shut off the unit and keep the
pool pump running. If the water stops running out of the base pan, it is condensation. AN EVEN
QUICKER WAY IS to TEST THE DRAIN WATER FOR CHLORINE - if the is no chlorine present,
then it's condensation.
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3INSTALLATION AND CONNECTION
3.5 SWIMMING POOL HEAT PUMPS ELECTRICAL WIRING
NOTE: Although the unit heat exchanger is electrically isolated from the rest of the unit, it
simply prevents the flow of electricity to or from the pool water. Grounding the unit is still
required to protect you against short circuits inside the unit. Bonding is also required.
The unit has a separate molded-in junction box with a standard electrical conduit nipple
already in place. Just remove the screws and the front panel, feed your supply lines in through
the conduit nipple, and wire-nut the electric supply wires to the three connections already in
the junction box (four connections if three phases). To complete electrical hookup, connect the
Heat Pump by electrical conduit, UF, cable, or other suitable means as specified (as permitted
by local electrical authorities) to a dedicated AC power supply branch circuit equipped with
the proper circuit breaker, disconnect, or time delay fuse protection.
Disconnect -A disconnecting means (circuit breaker, fused or un-fused switch) should be
located within sight of and readily accessible from the unit. This is common practice on
commercial and residential air conditioners and heat pumps. It prevents remotely energizing
unattended equipment and permits turning off the power at the unit while the unit is being
serviced.
3.6 INITIAL STARTUP OF THE UNIT
NOTE- For the unit to heat the pool or spa, the filter pump must be running to circulate water
through the heat exchanger.
Start-up Procedure -After installation is completed, you should follow these steps:
Turn on your filter pump. Check for water leaks and verify flow to and from the pool.
Turn on the electrical power supply to the unit, then press the key ON/OFF of the wired
controller, it should start in several seconds.
After running for a few minutes make sure the air leaving the top(side) of the unit is cooler
(Between 5-10 °C)
With the unit operating turn, the filter pump off. The unit should also turn off automatically.
Allow the unit and pool pump to run 24 hours per day until the desired pool water temperature
is reached. When the water-in temperature reaches this setting, the unit will slow down for a
period, if the temperature is maintained for 45 minutes the unit will turn off. The unit will now
automatically restart (as long as your pool pump is running) when the pool temperature drops
more than 0.2 below the set temperature.
Time Delay- The unit is equipped with a 3-minute built-in solid-state restart delay included to
protect control circuit components and to eliminate restart cycling and contactor chatter. This
time delay will automatically restart the unit approximately 3 minutes after each control circuit
interruption. Even a brief power interruption will activate the solid state 3-minute restart delay
and prevent the unit from starting until the 5-minute countdown is completed.
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4USE AND OPERATION INSTRUCTION
4.1 FUNCTION OF A CONTROLLER
1) BUTTON FUNCTION
INTER HEAT SMART
50IS / 58IS / 90IS

26IS / 36IS
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4USE AND OPERATION INSTRUCTION
2) DISPLAY FUNCTION
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26IS / 36IS
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4USE AND OPERATION INSTRUCTION
4.2 THE CONTROLLER USAGE
4.2.1 STARTING UP AND SHUTTING DOWN
In the off interface, press for 0.5s can start up the unit, and aux. display-area shows water
outlet temperature; in the running interface, press for 0.5s can shut down the unit and aux.
display-area shows "OFF" .
Attention: the operation of starting up and shutting down can only be done in the main
interface.
For example:
2.2 MODES SWITCHING
If it is cold/ heat unit, in the main interface, you can switch different modes of cooling, heating,
auto mode by pressing .
Attention: The modes switching is useless if the unit you buy is single-cold/ single-heat unit.
For example:
INTER HEAT SMART
50IS / 58IS / 90IS

26IS / 36IS
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4USE AND OPERATION INSTRUCTION
4.2.3 TEMPERATURE SETTING
In the main interface, press " " or " " and the current mode target-temperature flashes,
then press " " to increase the temp.value, or press " " to decrease it.
Press " " can save setting parameter and back to the main interface;
Press " " can not save setting parameter but back to the main interface;
Attention: If there is no operation for 5s, system would remember parameter setting and back
to the main interface.
For example:
In the main interface, press " " twice, hours start to flashing , and press " " to increase
value or press " " to decrease value, and press " " to save setting;
At the same time, minute start to flashing , press " " to increase value or press " " to
decrease value, and press " " to save setting.
Press " " can not save setting parameter and back to main interface.
Attention: If there is no operation for 5s system will remember parameter setting and back to
the main interface.
For example:
2.4 CLOCK SETTING
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50IS / 58IS / 90IS

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4USE AND OPERATION INSTRUCTION
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50IS / 58IS / 90IS

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4.2.5 TIMER SETTING
In the main interface, press " " hold on 2 seconds and "on" is flashing, at this time, you can
set the timer on (means the unit timer is on) , then press " " again and hold on 2 seconds
and "off" is flashes you can set the timer off (means the unit timer is off) .
If you want cancel the timer off, In the "off" flashing interface, press " " to cancel
Attention: 1) If there is no operation for 5s, system will remember clock setting and back to the
main interface.
2) By pressing " till the "off" flashing, you can set the timer off without timer on.
4USE AND OPERATION INSTRUCTION
INTER HEAT SMART
50IS / 58IS / 90IS

26IS / 36IS
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4USE AND OPERATION INSTRUCTION
INTER HEAT SMART
50IS / 58IS / 90IS

26IS / 36IS
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4USE AND OPERATION INSTRUCTION
4.2.6 CANCEL THE TIMER SETTING
Press " " for 2s and "ON" is flashing, at this time, press “ ” to cancel the setting of timer
on; It is the same way to cancel the setting of timer off.
For example:
INTER HEAT SMART
50IS / 58IS / 90IS

26IS / 36IS
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4.2.7 KEYBOARD LOCK
To avoid mis-operation, please lock the controller after parameter setting. At the main
interface, press “ ” for 5 seconds, the keyboard will be locked. When the keyboard is locked,
press “ “ for 5 seconds, the keyboard will be unlocked.
NOTES: When the unit is in alarming state, the key lock can be removed automatically.
4.2.8 MALFUNCTION DISPLAY
There will be a malfunction code showing on the controller screen when relative malfunction
occurs. You can refer to the malfunction table to find out the failure cause and solution.
For example:
4.3 PARAMETER TABLE
USE AND OPERATION INSTRUCTION
INTER HEAT SMART
50IS / 58IS / 90IS

26IS / 36IS
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4.4 MALFUNCTION TABLE
5. INTERFACE DIAGRAM
5.1 WIRE CONTROL INTERFACE DIAGRAM AND DEFINITION
The common failure cause and solution.
USE AND OPERATION INSTRUCTION
INTER HEAT SMART
50IS / 58IS / 90IS