intensity IMCH-036KC-3 Operating instructions

MINI CHILLER
MAN-IO-IMCH-0615
intensity.mx
INSTALLATION &
OWNER´S MANUAL
IMCH-036KC-3 / IMCH-060KC-3
3 and 5 Tons.

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To prevent injury to the user or other people and property
damage, the following instructions must be followed. Incorrect
operation due to ignoring of instructions may cause harm or
damage.
Ask your dealer for installation of the air conditioner.
Incomplete installation performed by yourself may result in a
water leakage, electric shock, and fire.
Ask your dealer for improvement, repair, and maintenance.
Incomplete improvement, repair, and maintenance may result in
a water leakage, electric shock, and fire.
In order to avoid electric shock, fire or injury, or if you
detect any abnormality such as smell of fire, turn off the
power supply and call your dealer for instructions.
Never replace a fuse with that of wrong rated current or
other wires when a fuse blows out.
Use of wire or copper wire may cause the unit to break down or
cause a fire.
Do not insert fingers, rods or other objects into the air inlet
or outlet.
When the fan is rotating at high speed, it will cause injury.
Never use a flammable spray such as hair spray, lacqueror
paint near the unit.
It may cause a fire.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons in
order to avoid a hazard.
CAUTION
Do not use the air conditioner for other purposes.
In order to avoid any quality deterioration, do not use the unit for
cooling precision instruments, food, plants, animals or works of
art.
Before cleaning, be sure to stop the operation, turn the
breaker off or pull out the supply cord.
Otherwise, an electric shock and injury may result.
In order to avoid electric shock or fire, make sure that an
earth leak detector is installed.
Be sure the air conditioner is grounded.
In order to avoid electric shock, make sure that the unit is
grounded and that the earth wire is not connected to gas or
water pipe, lightning conductor or telephone earth wire.
In order to avoid injury, do not remove the fan guard of the
outdoor unit.
Do not operate the air conditioner with a wet hand.
An electric shock may happen.
Do not touch the heat exchanger fins.
These fins are sharp and could result in cutting injuries.
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Never inspect or service the unit by yourself.
Ask a qualified service person to perform this work.
Do not dispose this product as unsorted municipal
waste.Collection of such waste separately for special
treatment is necessary.
Keep far away from high-frequency equipment.
Keep away from the following places:
a place where it is full of oil gas; places where salty air
surrounding(near the coast); a place where is caustic gas(the
sulfide in hotspring). Location in the folling places may cause
malfunction or shorten the life span of the manchine.
In the cace of extremely strong wind, please prevent the air
from flowing backwards into the outdoor unit.
Snow canopy is necessary in sonwfall places on the
outdoor unit. Please consult the local dealer for details.
In the frequent thunderstruck place, lightning proof actions
should be taken.
To prevent refrigerant leak, contact your dealer.
When the system is installed and runs in a small room, it is
required to keep the concentration of the refrigerant, if by any
chance coming out, below the limit. Otherwise, oxygen in the
room may be affected, resulting in a serious accident.
The refrigerant in the air conditioner is safe and normally
does not leak.
If the refrigerant leaks in the room, contact with a fire of a
burner, a heater or a cooker may result in a harmful gas.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer where you purchased the
unit.
Do not use the air conditioner until a service person confirms
that the portion where the refrigerant leaks is repaired.
This appliance can be used by children aged 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 shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
Failure to observe a warning may result in death.
CONTENTS PAGE
The safety precautions listed here are divided into two categories. In
either case, important safety information is listed which must be read
carefully.
Failure to observe a caution may result injury or damage
to the equipment.
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After a long use, check the unit stand and fitting for
damage.
If damaged, the unit may fall and result in injury.
To avoid oxygen deficiency, ventilate the room sufficiently if
equipment with burner is used together with the air
conditioner.
Arrange the drain hose to ensure smooth drainage.
Incomplete drainage may cause wetting of the building, furniture
etc.
Never expose little children, plants or animals directly to
the air flow.
Adverse influence to little children, animals and plants may
result.
Notice to avoid places where operation noise may easily be
spread away or be enhanced.
Noise can be amplified by anything blocking the air outlet
of outdoor unit.
Choose a proper place that the noise and hot or cold wind blown
out of the outdoor unit will not bring inconvenience to your
neighbors and not affect the growth or animal or plant.
Recommending locate and operate the equipment at the altitude
height not exceed than 1000m.
Endurable temperature during transportation is -25~55.
Such equipment could endure 70 of the maximum
temperature in 24hrs.
Do not allow a child to mount on the outdoor unit or avoid
placing any object on it.
Falling or tumbling may result in injury.
Do not operate the air conditioner when using a room fumigation
- type insecticide.
Failure to observe could cause the chemicals to become
deposited in the unit, which could endanger the health of those
who are hypersensitive to chemicals.
Do not place appliances which produce open fire in places
exposed to the air flow from the unit or under the indoor unit.
It may cause incomplete combustion or deformation of the unit
due to the heat.
Do not install the air conditioner at any place where flammable
gas may leak out.
If the gas leaks out and stays around the air conditioner, a fire
may break out.
The appliance is not intended for use by young children or infirm
persons without supervision.
Young children should be supervised to ensure that they do not
play with the appliance.
Stationary appliances not fitted with means for disconnection
from the supply mains having a contact separation in all poles
that provide full disconnection under overvoltage category III, the
instructions state that means for disconnection must be
incorporated in the fixed wiring in accordance with the wiring
rules.
Qty.
Shape.
Unit
1 Operation panel
2. ATTACHED FITTINGS
3. MAIN PARTS OF THE UNIT
2 Water manometer
3 Automatic discharge valve
2
4 Axial-flow fan
5 Differential pressure switch
6 Condenser
7 Accumulater
8 Security discharge
9 Electric expansive valve
10 Plate heat exchanger
11 Electrical panel
12 High pressure switch
13 4-ways valve
14 Expansion tank
15 Pump
16 Low pressure switch
17 Storage tank
18 Compressor
19 Water supply valve

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5.1 Installation place
There is combustible gas leakage.
There is much oil (including engine oil) ingredient.
Please keep away from the following place, or malfunction of the
machine may be caused:
There is salty air surrounding(near the coast)
There is caustic gas (the sulfide, for example) existing in the
air (near a hotspring)
A place the heat air expelled out from the outdoor unit can
reach your neighbor’s window.
A place that the noise interferes your neighbors every day
life.
A place that is too weak to bear the weight of the unit
Uneven place.
Insufficient ventilation place.
Near a private power station or high Frequency equipment.

LP
1 Compressor
2 4-Way Valve
3 Accumulatior
4 Air Side Heat Exchanger
5 Electronic Expansion Valve
6 Storage Tank
7 Strainer
8 Water Side Heat Exchanger
(Plate Heat Exchange)
HP
1 3
10
2
4
677
5
8
11
9
9 Differential Pressure Switch
10 High Pressure Switch
11 Low Pressure Switch
12 Discharge Gas thermistor
13 thermistor For Outdoor Temperature
14 Thermistor For Evaporation In Heating
(Thermistor For Condenser In Cooling)
15 Thermistor For Plate Heat Exchange 1
16 Thermistor For Plate Heat Exchange 2
12
13
14
15
16
17
18
Cooling
Heating
17 Thermistor For Water Outlet
18 Thermistor For Water Inlet
19 Automatic Discharge Valve
20 Expansion Tank
21 Circulating Pump
22 Pressure Gauge
23 Safety Valve
24 Auto-watet replenishing
19 20
21
22 23
24
A
Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 1 meter away from televisions
and radios. This is to prevent image interference and
noise in those electrical appliances. (Noise may be
generated depending on the conditions under which the
electric wave is generated, even if 1 meter is kept.)
CAUTION
The insulation of the metal parts of the building and the air
conditioner should comply with the regulation of National Electric
Standard.
Install indoor unit, outdoor unit, power cord and connecting
wire at least 1m away from TV set or radio to prevent noise or
picture interference.

5.2 Installation space (Unit:mm)
All the pictures in this manual are for explanation purpose only.
They may be slightly different from the air conditioner you
purchased(depend on model).The actual shape shall prevail.
NOTE
>300
>600
(Wall or obstacle)
Maintain
channel
Air outlet
Air inlet
Air inlet
Single unit installation
5.3 Moving and installation
Fix with bolt
>2000 >500 >3000 >3000 >300
>600
>2000
>300
Parallel connect the two units or above
Parallel connect the front with rear sides
Do not touch the fan with hands or other objects.
Do not lean it more than 45°, and do not lay it sidelong.
Make concrete foundation according to the sepecifications of
the outdoor units.(refer to Fig.5-6)
Fasten the feet of this unit with bolts firmly to prevent it from
collapsing in case of earthquake or strong wind.
(refer to Fig.5-6)
Since the gravity center of the unit is not at its physical center,
so please be careful when lifting it with a sling.
Never hold the inlet of the outdoor unit to prevent it from
deforming.
5.4 Water Outlet
Reserve water outlet
Reserve water outlet Water Outlet
Outlet for power and connecting pipes
(Need to knock open)
(With rubber stopper)
Four condensed water outlets on the chassis for selection
display as the follow figure:
While installing the outdoor unit, pay attention to the installation
place and the drainage pattern;
if it’s installed at the alpine zone, the frozen condensed water will
block up the water outlet, please pull out the rubber stopper of the
reserve water outlet. If that still fails to satisfy for the water draining,
please knock open the other two water outlets, and keep the water
can drain in time.
Pay attention to the knock the reserve water outlet from outside to
inside, and it will be beyond repair after knocking open, please pay
attention to the installation place, lest cause the inconvenience.
Please do the moth proofing for the knocked out hole, to avoid the
pest processing into and destroy the components.
CAUTION
9006003604001327
unit mm
348
AB E D GFC Fig
320Fig.5-2
table 5-1
H
970Fig.5-1
KBTUS/hr
36 / 60

CAUTION
CAUTION
5
The choice and installation of components is the responsibility of the
installer who should follow good working practice and current
legislation. Before connecting the pipes, make sure they do not
contain stones, sand, rust, dross or other foreign bodies which might
damage the unit.Construction of a bypass is recommended to enable
the pipes to be washed through without having to disconnect the unit
(see drain valves). The connection piping should be supported in
such a way as to avoid it weighing on the unit.It is recommended
that the following devices are installed in the water circuit of the
evaporator.
A hydraulic safety valve shall be mounted in water system, which
should open constantly.
If the installation requires a useful head higher than that obtained by
installing a pump assembly and storage tank, it is recommended that
an additional pump is installed on the unit. Provided the additional
pump installed inside of unit, the pump must connected close to
plate heat exchanger. Provided the pump installed outside of unit,
the pump shall be connected at water pipe’s outlet.The pump can be
easily installed on the unit y removing the pump connection pipe.
Connect to terminal PL, PN on the electrical panel.
The chillers must be provided with a filling/top-up system
connected to the return line and a drain cock in the lowest part
of the installation.Installations containinganti-freeze or covered
by specific legislation must be fitted with hydraulic
disconnectors.
The manufactureris not liable for obstruction, breakage or noise
resulting from the failure to install filters or vibration dampers.
Particular types of water used for fillingor topping up must be
treated with appropriate treatment systems. For reference values,
see the table.
6
6. WATER PIPE INSTALLATION
.1 Connection drawing of pipeline system
1
Factory Connections Installer Connections
A
F
WATER INLET
WATER OUTLET
3
4
7
2
5
6
8
9
10
10
11
12
14
13
11
6
9
9
1 Plate Heat Exchange
2 Differential Pressure Switch
3 Automatic DischargeValve
4 ExpansionTank
5 Auto-watet replenishing
6 Circulating Pump
7 PressureGauge
8 Safety Valve
9 Drain/Chemical WashingValve
10 FlexibleJoint
11 Thermometer
12 Calibrating Valve
13 Y-shaped Filter
14 Water FlowSwitch
7
7
In certain occasion (especially in manufacture cooling
process), for conforming the system water content requirement,
it’s necessary to mount a tank equipping with a cut-off baffle at the
system to avoid water short-circuit, Please see the following
schemes:
kW is the unit for cooling capacity and L is the unit for G
water flow in the formula counting the minimum water flow.
Comfortable type air conditioner
G= cooling capacity×2.6L
6.2 Design of the tank in the system
The minimum chilled water flow is shown in the table 6-1
If the system flow is less than the minimum unit flow rate,
the evaporator flow can be recirculated, as shown in the
diagram.
6.3 Minimum chilled water flow
Evaporator
Recirculation
For minimum chilled water flow rate

CAUTION
CAUTION
CAUTION
6
6.9 Size and position of connections
Model 36/60 Btus
6.8 Emptying the installation
A (mm) 300
B (mm) 195
C (mm) 155
D (mm)
E (mm)
F (mm)
Water inlet/outlet (Ø)
Auto-water replenishing (Ø)
Security discharge (Ø)
F
water outlet
auto-water
replenishing orifice
security discharge
water inlet
105
68
105
R5/4
G1/2
G1/2
An all-pole disconnection device which has at least 3mm
separation distance in all pole and a residual current device
(RCD) with the rating of above 10mA shall be incorporated in the
fixed wiring according to the national rule the appliance shall be
installed in accordance with national wiring regulations.
6.7 Filling the installation
-Before filling,check that the installation drain cock is closed.
-Open all installation and terminal air vents.
-Open the gate valves.
-Begin filling,slowly opening the water filling cock outside the unit.
-When water begins to leak out of the terminal air vent valves,
close them and continue filling until the pressure gauge indicates
a pressure of 1.5 bars.
-Before emptying,place the mains switch in the “off ” position.
-Make sure the installation fill/top-up water cock is closed.
-Open the drain cock outside the unit and all the installation and
terminal air vent valves.
The installation must be filled to a pressure of between 1 and
2 bars.
It is recommended that this operation be repeated after the unit
has been operating for a number of hours.The pressure of the
installation should be checked regularly and if it drops below
1 bar,the water content should be topped-up.
Check the hydraulic tightness of joints.
If the fluid in the circuit contains anti-freeze,it should not be
allowed to drain freely as it is pollutant.It should be collected
for possible reuse.When draining after heat pump operation,
take care as the water may be hot (up to 50°).
6.4 Maximum chilled water flow
The maximum chilled water flow is limited by the permitted
pressure drop in the evaporator. It is provided in the table 6-1
If the system flow is more than the maximum unit flow rate,
bypass the evaporator as shown in the diagram to obtain a lower
evaporator flow rate.
For maximum chilled water flow rate
6.5 Minimum and Maximum water flow rates
Evaporator
Recirculation
Table 6-1
Water flow rate(m
3
/h)
MaximumMinimum
Item
Model
IMCH-036KC-3
IMCH-060KC-3 2.63 3.22
1.891.54
6.6 Water quality control
When industrial water is used as chilled water, little furring may
occur; however, well water or river water, used as chilled water,
may cause much sediment, such as furring, sand, and so on.
Therefore, well water or river water must be filtered and softened
in softening water equipment before flowing into chilled water
system. If sand and clay settle in the evaporator, circulation of
chilled water may be blocked, and thus leading to freezing
accidents; if hardness of chilled water is too high, furring may
occur easily, and the devices may be corroded. Therefore, the
quality of chilled water should be analyzed before being used,
such as PH value, conductivity, concentration of chloride ion,
concentration of sulfide ion, and so on.
<50ppm
<50ppm
<30ppm
<200V/cm(25ºC)
<0.3ppm
<50ppm
<50ppm
6.6.2 Applicable standard of water quality for the unit
PH value
Total hardness
Conductivity
Sulfide ion
Chloride ion
Ammonia ion
Sulfate ion
Silicon
Iron content
Sodium ion
Calcium ion
No
No
No requirement
Table 6-2
6∫8
6.6.1 Water quality control
Table 6-3

6.10 Basic requirements of connection of chilled
water pipes
CAUTION
Aftertheunitisinplace,chilledwaterpipescanbelaid.
Therelevantinstallationregulationsshouldbeabidedwith
when conducting connection of water pipes.
Thepipelinesshouldbefreeofanyimpurity,andallchilled
water pipes must conform to local rules and regulations of
pipeline engineering.
For the water pipeline network including filters and heat
exchangers, dreg or dirt may seriously damages the heat
exchangers and water pipes.
The installation persons or the users must ensure the quality
of chilled water, and de-icing salt mixtures and air should be
excluded from the water system, since they may oxidize and
corrode steel parts inside the heat exchanger.

otherwise the performance of the unit will decline.
c. The pump installed in the water pipeline system should be
equipped with starter. The pump will directly press water into the
heat exchanger of the water system.
d. The pipes and their ports must be independently supported but
should not be supported on the unit.
e. The pipes and their ports of the heat exchanger should be
easy to disassemble for operation and cleaning, as well as
inspection of port pipes of the evaporator.
f. The evaporator should be provided with a filter with more than
40 meshes per inch at site. The filter should be installed near to
the inlet port as much as possible, and be under heat preserva-
tion.
g. The flexible ports should be adopted between the interface of
the heat exchanger and on-site pipeline, to reduce transfer of
vibration to the building.
h. To facilitate maintenance, the inlet and outlet pipes should be
provided with thermometer or manometer. The unit is not
equipped with pressure and temperature instruments, so they
need to be purchased by the user.
i. All low positions of the water system should be provided with
drainage ports, to drain water in the evaporator and the system
completely; and all high positions should be supplied with
discharge valves, to facilitate expelling air from the pipeline. The
discharge valves and drainage ports should not be under heat
preservation, to facilitate maintenance.
j. All possible water pipes in the system to be chilled should be
under heat preservation, including inlet pipes and flanges of the
heat exchanger.
k. The outdoor chilled water pipelines should be wrapped with an
auxiliary heating belt for heat preservation, and the material of
the auxiliary heat belt should be PE, EDPM, etc., with thickness
of 20mm, to prevent the pipelines from freezing and thus
cracking under low temperature. The power supply of the heating
belt should be equipped with an independent fuse.
l. When the ambient temperature is lower than 2, and the unit
will be not used for a long time, water inside the unit should be
drained. If the unit is not drained in winter, its power supply
should not be cut off, and the fan coils in the water system must
be provided with three-way valves, to ensure smooth circulation
of the water system when the anti-freezing pump is started up in
winter.
m. The common outlet pipelines of combined units should be
provided with mixing water temperature sensor.
Connection requirements of chilled water pipes
a. All chilled water pipelines should be thoroughly flushed, to be
free of any impurity, before the unit is operated. Any impurity
should not be flushed to or into the heat exchanger.
b. Water must enter the heat exchanger through the inlet,

t( )
COOLING
DELIVERY WATER TEMPERATURE
HEATING
DELIVERY WATER TEMPERATURE
Recommended
operating area
-
-10 4 5 7 15 20
-5
20
35
46
30 45 55
-15
-3
7
27
35
20
t( ) t( )
t( )

cPf
cQ
cdp
0
1
1
1
12%
0.98
1.02
1.07
20%
0.97
1.04
1.11
28%
0.965
1.075
1.18
35%
0.96
1.11
1.22
40%
0.955
1.14
1.24
Thermal head min.- max. 4-6
Water circuit pressure (bars) 1-3
Max.storage temperature 55
7.1 Ethylene glycol solutions
Water and ethylene glycol solutions used as a thermal vector in the
place of water reduce the performance vector in the place of water
reduce the performance values given in the following table.
CAUTION
During winter leaving the unit unused, please drain water out
completely from unit if no antifreeze were charged into pipeline,
or keep power on(at standby or off status) and ensure that water
is contained inside of unit.
When ambient temperature lower 5running cooling mode
must be charged antifreeze. Refer to upper parameters for the
charged volume.
0 -5 -10 -15 -20 -25
Freezing point (°C)
Percentage of ethylene glycol in weight
cPf: correction factor refrigerating capacity
cQ: correction factor flow rate
cdp: correction factor pressure drop
7.2 Fouling factors
The performance data given refer to conditions with clean evaporator
plates (fouling factor=1).For different fouling factors,multiply the
figures in the performance tables by the coefficient given in the
following table.
f1: capacity correction factor
fk1: compressor power input correction factor
fx1: total power input correction factor
4.4 x 10-5
0.86 x 10-4
1.72 x10-4
-
0.96
0.93
-
0.99
0.98
-
0.99
0.98
Fouling factors
(m2°C/W) f1
Evaporator
fk1 fx1
8. HYDRAULIC DATA
8
8.1 Useful pump head curves (36/60 BTUS/h)
 







    




The unitary minichillers leave the factory already wired,
and require the installation of an omnipolar thermal
overload switch,a lockable mains disconnecting switch for
the connection to the mains power supply,and the connec-
tion of the flow switch to the corresponding terminals.All
the above operations must be carried out by qualified per-
sonnel in compliance with the legislation in force.
For all electrical work,refer to the electrical wiring diagrams
in this manual.You are also recommended to check:
-that the characteristics of the mains electricity supply are
adequate for the absorptions indicated in the electrical
characteristics table below,also bearing in mind the pos-
sible use of other equipment at the same time.
Power to the unit must be turned on only after
installation work (hydraulic and electrical) has been
completed.
All electrical connections must be carried out by
qualified personnel in accordance with legislation in
force in the country concerned.
Respect instructions for connecting phase, neutral
and earth conductors.The power line should be fitted
upstream with a suitable device to protect against
short-circuits and leakage to earth, isolating the
installation from other equipment.
Voltage must be within a tolerance of ±10% of the
rated power supply voltage for the unit (for three
phase units,the unbalance between the phases
must not exceed 3%).If these parameters are not
respected,contact the electricity supply company.
For electrical connections,use double insulation
cable in conformity with current legislation in the
country concerned.
An omnipolar thermal overload switch and a lock-
able mains disconnecting switch,in compliance with
the CEI-EN standards (contact opening of at least
3mm),with adequate switching and residual current
protection capacity based on the electrical data
table shown below,must be installed as near as
possible to the appliance.
The devices on the unit must be lockable.
An efficient earth connection is obligatory.Failure to
earth the appliance absolves the manufacturer of
all liability for damage.
Do not use water pipes to earth the unit.
MODEL
POWER
GROUND WIRING(mm2)
CIRCUIT BREAKER/FUSE (A)
POWER WIRING(mm2)
PHASE
FREQUENCY AND VOLT
40/35
IMCH-036KC-3 IMCH-060KC-3
208/230V~, 60Hz 208/230V~, 60Hz
1-PHASE
3x4.0
4.0
40/35
1-PHASE
3x6.0
4.0
9.1 The Specification of Power
The power cord type designation is H07RN-F.
Connecting cable between indoor unit and outdoor unit
shall be approved polychloroprene sheathed flexible
cord, type designation H07RN-F or heavier cord.
The means for disconnection from a power supply shall
be incorporated in the fixed wiring and have an air gap.
9. ELECTRICAL CONNETIONS
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
Table 9-1
9


9.2 Electrical connections
NOTE:
The outdoor units must be installed with an Residual Current
Circuit-breaker near the power supply and must be effectively
earthed.
Additi onal pump
L
N208/230V
208/230V
L
NA1
A2
“PUMP2” terminal only provides passive switching signal.
Additional water pump must be controlled by the AC contactor.
“Remote alarm” terminal only provides passive switching signal.
Current passing through the terminal interface should less than 1.5A,
otherwise please use AC contactor to control load indirectly.
AC contactor
SWITCH
Main control board
Main control board
If switch is closed, the unit will be stopped forcibly.
Under this circumstance, anti-frozen protection and other
protection functions are still effective.
If switch breaks, unit can run normally according settings.
PUMP2 Remo te a la r m Remo te s hu td own wi r e c on tr ol l e r
9.2.1 To complete the electrical connections
Remove the inspection panel by unscrewing the five screws.
Use grommet A for the electrical power cable and grommet B for
the other external wires.
9.2.2 Costomer connection terminal
9.2.3 Electrical power connections
9.2.4 Auxiliary function connections
Additional pump
Remote alarm
Remote shutdown
AC 208/230V 60Hz
LN
Residual Current
Circuit-breaker
GND


NOTE
The front panel of the device functions as the user interface and is used to perform all operations relating to the device.
10.2.1 Icon Description
10.2 Activating and deactivating the unit




    
7.1
12 13 14 15 16
17
18
11
19
20
24
23
21
22


Remote shutdown and Remote cooling/heating is optional
function.
Factory default has no remote cooling/heating.
When the remote control and wire controller used at the same
time, the unit will carry out the last command of arbitrary
terminal.
Remote shutdown has the highest priority. In the status of
remote shutdown, other controllers can’t start the unit.
SWITCH 2
If switch2 is closed, the unit will shift to heating mode forcibly;
If switch2 breaks the unit will shift to cooling mode forcibly.
The wire controller is optional.
Pleaseuse3-coreshieldedwiretoconnectthewirecontrollerand
the shielding layer must be grounded.
Whenconnectingwirecontroller,hostunitcontrolpanelis
mainly used for display which can carry out parameter inquiry
such as inquiry and checking, and can’t be used to set mode and
temperature.
10.1 To access the control panel,open the door
-remove the screw 1 and screw 2;
-lift the door 3.
Wire controller
Remote cooling/heating


Clock icon
It will display when finish setting the clock and be extinguished when the clock setting work is done.
Timing on function icon
will flicker when setting timing on. The icon will be constantly light when finish setting.
Breakdown light icon
When the unit is broken down or under protection, this icon will flicker and will be extinguished when malfunction and
protection are eliminated.
Compressor booting indicator icon
When booting the compressor, this icon will be constantly light. It will be extinguished when the compressor is shut down
E-heater booting indicator iconReserved
When booting the external E-heater, this icon will be constantly light. It will be extinguished when the external E-heater is
shut down.
Fan booting indicator icon
When booting the fan, this icon will be constantly light. It will be extinguished when the fan is shut down.
Water pump booting indicator icon
When booting the water pump, this icon will be constantly light. It will be extinguished when the water pump is shut down.
Key freezing icon
When freezing the keys, this icon will be constantly light. It will be extinguished when unfreezing keys.
Temperature unit icon
When the control panel displays temperature, this icon will be constantly light.
Current unit icon
When the control panel displays current, this icon will be constantly light.
Time format icon
The unit is 12-hour format. “ ”will be constantly light when it is forenoon.
“ ” will be constantly light when it is afternoon
Frequency unit icon
It will be constantly light when the control panel displays frequency of the compressor.
ON/OFF and OK button
1.Press “ ” to confirm the former operation when finishing the setting work.
2.Long press “ ” for 3S will recovers to factory default mode.
Mode choice function/Function choice/Back function button
1.Mode choice function. Choose operation mode.
2.Function choice. Long press it for 3s to enter function setting in the main interface.(Clock setting, Timing on and timing off
setting)
3.Back to the previous menu. Long press it for 3s to back to previous menu in the function setting interface. Top menu is the
main interface.
NO. Icon Description
Outside heat source running icon(Reserved)

Cooling mode icon
This icon will be constantly light when customers choose cooling mode.
Heating mode icon
This icon will be constantly light when customers choose heating mode.
Water pump mode icon
This icon will be constantly light when customers choose water pump mode.
Force cooling icon
This icon will be constantly light when customers choose force cooling mode.
Power off icon
This icon will be constantly light when customers choose Power off mode.
Clock icon, the middle “” flicker once every 1s. It will display time when customers set the timer.
The last 2 digits of the nixie tube “ ” icon.
If “ ” is constantly light, it will display the current inlet water temperature. Its unit is .
When customers do water temperature set, icon will display the set water temperature.
When checking, “ ” will display the result of checking.
When water heating is broken down or in protection, “ ” display the error code and protection code.







Up
1.(Value increase)
2.Forward to the previous interface.
Down
1.(Value decrease)
2.Backward to the next interface.
Timing off function icon
will flicker when setting timing off. The icon will be constantly light when finish setting.

11


10.2.2 Control panel operation description
1. ON/OFF
The first time to powered on the unit,
Operation panel displays “OFF”. Long press “ ” for 3s,
to unlock “OFF” status and enter into standby status.
Power on: In the standby status, press “ ” to enter mode
choice functionn. Press “ ” circularly to choose one kind
of “power on” mode, the mode icon will flicker at the moment.
Press “ ” to confirm the power on mode. The unit will run
as the chosen mode when the mode icon will be constantly light.
Power off: Press “ ” in the main interface to enter mode
choice function and the icon which indicate the current mode will
flicker. Press “ ” circularly to choose power off mode,
“ ” will flicker at this moment. Press “ ” button to
confirm the power off mode. By this time, “ ” will be constantly
light and the unit stops.
2. Mode choice and temperature settings
Press “ ” in the main interface to enter mode choice
function. The “Mode” icon will flicker. Click “ ” circularly to
choose a mode. The circulating order is “Cooling mode”→
“Heating mode”→“Water pump mode” →“Power off mode” →
2Timing off setting
Long press “ ” for 3s in the main interface to enter
function interface. Press “ ” circularly to enter timing off
function. “ ” will flicker and press “ ” to enter timing
off setting.
At this moment, the last 2 digits of the nixie tube display “01”
which means the first group setting begins. Press “ ” to the
next step.
By this time, the first 2 digits of the nixie tube will flicker and
press “ ” or “ ” to adjust time of timing off. Press “ ”
to confirm and switch to minute setting automatically. The last 2
digits of the nixie tube will flicker and press “ ” or “ ” to
adjust minute setting of timing off. Press “ ” to confirm. The
first group setting is finished and “ ” will be constantly light.
When processing timing setting of group 2, repeat the 1-2
operation above. When the nixie tube displays “01” and flicker,
press “ ” or “ ” to choose the timing off group. When the
nixie tube displays “02” which means setting timing off function of
the second group.
Refers the timing off setting operation of group 1 to set that of
group 2.
3Cancel all timing on/off settings
Long press “ ” for 3s to enter function interface. “ ”
clock icon will flicker and press “ ” to choose the timing
function. “ ” and “ ” flicker simultaneously means
choosing to cancel all timing functions.
Press “ ” to cancel timing settings. “ ” and “ ”
both will be extinguished.
10.2.3 Functions of combination key
1. Force cooling
Press “ ” and “ ” simultaneously for 3s in the main
interface to enter into force cooling mode. The force cooling mode
icon will be constantly light.
Press “ ” button and “ ” button simultaneously for 3s to
quit force cooling mode. The unit will enter power off mode
automatically when quitting force cooling mode.
2. Parameter query function
To enter parameter query function.
Press “ ” and “ ” simultaneously for 3s to enter into the
interface of parameter query function. At this moment, first 2 digits
of the nixie tube will display sequence number and the
last 2 digits is specific parameters.
Press “ ” or “ ” to query the relative parameters.
See query orders in Table 10-1.
Quit parameter query function If there’s no operation in 20s
when enter the parameter query, it will quit automatically and
return to the main interface.
Press “ ” and “ ” simultaneously to quit parameter query
manually.
Long press “ ” for 3s to return to the previous interface to
reset the parameter during setting clock timing.
and go to the next step.
By this time, the last 2 digits of the nixie tube will flicker and
press “ ” or “ ” to adjust temperature and set the
temperature of the inlet water. Press “ ” to confirm and
move to the next step.
By this time, the first 2 digits of the nixie tube will flicker and
press “ ” or “ ” to adjust time of timing on. Press “ ”
to confirm and switch to minute setting automatically. The last 2
digits of the nixie tube will flicker and press “ ” or “ ” to
adjust minute setting of timing on.(minimal unit of minute
adjustment: 15 minutes) .
Press “ ” to confirm. The first group setting is finished and
“ ” will be constantly light. When processing the second
timing setting, repeat the 1-2 operation above. When the nixie
tube displays “01” and flicker, press “ ” or “ ” to choose
the timing on group. When the nixie tube displays “ 02 ” which
means setting timing on function of the second group.
Refers the timing on setting operation of group 1 to set that of
group 2.
“Cooling mode”. The chosen mode will flicker.
Press “ ”or “ ”to increase/decrease the temperature in
the chosen mode.
Press “ ” to confirm power off mode and the set
temperature. Mode icon will be constantly light and the unit will
run as the chosen mode.
Press “ ” or “ ” in the main interface to increase/decrease
the temperature in the chosen mode.
3. Clock setting
Long press “ ” for 3s to enter function interface. “ ”
clock icon will flicker. Press “ ” to enter clock setting
function. “ ” icon will be constantly light and the first 2 digits
on nixie tube will flicker. Press “ ” or “ ” to set minute.
Press “ ” when finish setting and “ ” will be
extinguished.
4. Timing setting
1Timing on setting
Long press “ ” for 3s to enter function interface. “ ”
clock icon will flicker. Press “ ” again to enter timing on
function. “ ” will flicker and press “ ” to enter timing
on setting.
At this moment, last 2 digits of the nixie tube display “01” which
means the first group setting begins. Press “ ” to the next
step.
By this time, mode icon will flicker and press “ ” to
choose timing on mode. Press “ ” to confirm your choice


Frequency
Mode
Display operating frequency when the unit is in cooling mode and heating mode.
0-Power off1-water pump2-cooling3-heating4-force cooling5-force heating
No.
1
2
3
Content Remark
Wind speed level 0-Power off (1-7)
4Total capacity requirements Capacity before revised(Force cooling displays 5)
6Temp. set Cooling/heating temp. set
7T3 Condenser temperature sensor
8T4 Outdoor ambient temperature sensor
9Tp Comp. Discharge temperature sensor
10 Tin Inlet water temperature sensor of plate heat exchanger
11 Tout Outlet water temperature sensor of plate heat exchanger
12 Tb1 Plate heat exchanger anti-freezing temperature sensor 1
13 Tb2 Plate heat exchanger anti-freezing temperature sensor 2
14 T6 Radiator surface temperature(reserved)
15 Unit operation current Unit operation current
16 Power supply voltage AD value Power supply voltage AD value
17 Opening of EXV
Model
Version number
Step number *8
18
Err1
19
Err2
20
Err3
21
22
5Capacity requirements after revised Capacity after revised (Force cooling displays 5)
Table.10-1 Query orders
3.Auto-lock(unlock) function
If don’t operate the controller in 60s, the keyboard will lock
automatically. Press “ ”and “ ” simultaneously for 3s
to unlock.
4.Factory Reset:
In main interface, long press “ENTER” for 3s, the unit will close and
recovers to factory default mode.
Display panel will display“OFF”
5.Error code and protection code shooting table:
IPM mode protection
Typhoon protection
Outdoor units anti-freezing protection
Flow switch malfunction
High temperature protection in heating mode
Defrosting
Oil return of compressor
Remote control
P4
P5
P6
P8
Pb
C8
CH
dF
d0
d8
Compressor discharge temperature protection
Condenser high temperature protection
Low pressure protection
Outdoor units current protection
E9
CP
CL
H0
E4
E5
E6
EA
Eb
C0
C1
F7
F8
PL
P1
EEPROM malfunction
Anti-idling protection of water pump
Low temperature protection in heating mode
Communication malfunction between the main controlling
chip and IPDU
T3T4 temperature sensor malfunction
Voltage protection
DC fan motor malfunction
5-minute error for heating mode fan in area A
Two times of E6 protection in 10 minutes(Recover when
powering off)
Tin temperature sensor malfunction
Tout temperature sensor malfunction
Tb1 temperature sensor malfunction
Tb2 temperature sensor malfunction
Radiator high temperature protection
High pressure protection
P2
P3
10.3 Operating characteristics
Set point in cooling
(factory set) = 12°C,Hysteresis = 3°C.
The compressor starts with water temperatures above 12°C.
The compressor shuts down with water temperatures of less
than 9°C.
Set point in heating
(factory set) = 40°C,hysteresis = 4°C.
The compressor starts with water temperatures below 38°C.
The compressor shuts down with water temperatures above 42°C.
In the event of a temporary power failure,when power returns, the
mode set previously will be retained in the memory.
Compressor start up delay
Two functions prevent the compressor from starting up too
frequently.
-Minimum time since last start-up 300 seconds.
(PCB has no such function)
(PCB has no such function)
(Operation panel has no such function)
(Operation panel has no such function)

15
Capacity (kW) 17.0(3.8~18.0)
Rated input (W) 5850
25.4
5780
25.6
R410A
Cooling: 5°C~46°C; Heating: -15°C-27°C
Cooling: 10°C~20°C; Heating mode: 35°C~50°C
1.0MPa
3.4
(mm)
(kg) 112
W×H×D
Model
Cooling
Power supply
Refrigerant
Type
Chargeing volume kg)
Outline dimension
N.W. of the unit
Packing dimension
Rated current (A)
Heating
18.0(4.0~19.0)
Notes: the above data is measured base on the following working condition.
Refrigeration mode under nominal working condition: Condenser air in 35. Evaporator water in/out 12/7 .
Heating mode under nominal working condition: Evaporator air in 785% R.H., Condenser water in/out 40/45.
IMCH-036KC-3 IMCH-060KC-3
10.0(2.9~10.5)
2950
11.0(3.2~12.0)
3140
2.8
110
13.6
1082×1456×435
12.8
208/230V~ 60Hz
10.4 Shutting down for long periods
11. MAIN PARAMETERS
Pump
The electronic board includes a pump control output.The pump
starts when the assembly is powered up and at least 285 seconds
before the compressor starts up and stops 120 seconds after the
assembly shuts down.
After the first 120 seconds of pump operation when the water flow
is at full speed,the water flow alarm functions are activated
(differential pressure switch and flow switch).
With a pump connected to terminals PL and PN on the installer
terminal board.
Fan speed control
For correct operation of the unit with different outside temperatures,
the microprocessor controls the fan speed based on the pressure
reading from the pressure probe, thus enabling heat exchange to
be increased and/or decreased,maintaining the condensing or
evaporation temperature practically constant.
The fan functions independently of the compressor.
Frost prevention alarm
To prevent the water freezing and damaging the plate heat
exchanger, the microprocessor shuts down the compressor if the
temperature measured by the heat exchanger outlet temperature
sensor is less than 3°C.
The frost prevention temperature set point can be modified by an
authorised service centre only and only after verifying that the water
circuit contains antifreeze.
Tripping of this alarm shuts down the compressor but not the pump,
which remains active.
To reset normal functions,the outlet water temperature must rise to
more than +15°C.Reset is manual.
If it is previewed not to use the machine for long periods After
deactivating the chiller:
-Make sure the model is in the Power off model " ", or
alternatively disconnect the unit from the power supply.
-Make sure the remote control switch is closed (if present) .
-Close the water valves.
If there is a possibility that the outside temperature may drop
below zero,there is the risk of freezing.
The water circuit MUST BE EMPTIED AND SHUT OFF
POWER (when draining after heat pump operation take care
as the water may be hot) or antifreeze must be added in the
proportion recommended by the manufacturer.
CAUTION
Capacity (kW)
Rated input (W)
Rated current (A)
6700
4800
Max. input consumption (W)
30
25.0
Max. input current (A)
(mm)
W×H×D 970×1327×400
Water flow alarm
The microprocessor provides for management of a water flow
alarm controlled by a water flow switch fitted as standard on the
appliance and a flow switch to be installed on the water delivery
piping.
This safety device may trip after the first 120 seconds of pump
operation when the water flow is up to speed.
Tripping of this alarm shuts down the compressor but not the
pump,which remains active.
To reset normal functions,the alarm contact must be deactivated
for at least 15 seconds.
When condenser temperature over than 62°C, system will shut
down,but not returns to normal operation until the condenser
temperature decreased less than 52°C.
Ambient temp(°C)
Water inlet setting temp. range(°C)
MAX. WATER PRESSURE