Samsung | RC090MHXEA | Unit installation | Samsung RC090MHXEA Unit installation

RCMHXGA
RCMHXEA
Air to Water Heat Pump
Mono Outdoor Unit
installation manual
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E S F I P D G R DB98-00000A(1)
Contents
Safety Precautions....................................................................................................................................................................................................................2
Product Specifications . .........................................................................................................................................................................................................4
Application Examples .......................................................................................................................................................................................................... 7
Main Components ................................................................................................................................................................................................................. 9
Functional Diagram............................................................................................................................................................................................................. 13
Installing the Unit ............................................................................................................................................................................................................... 15
Piping Work.............................................................................................................................................................................................................................. 22
Wiring ....................................................................................................................................................................................................................................... 29
Testing operations . ............................................................................................................................................................................................................ 35
Trouble shooting . ............................................................................................................................................................................................................... 37
Maintenance .......................................................................................................................................................................................................................... 38
Safety precautions
Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.
WARNING
• Always disconnect a power supply of Air-Water Heat Pump before servicing it or accessing
components inside the unit.
• Verify that installation and testing operations shall be performed by qualified personnel.
• To prevent serious damage on the system and injuries to users, precautions and other notices
shall be observed.
Warning
 Carefully read the content of this manual before installing the air to water heat pump and store the manual in a safe place in order
to be able to use it as reference after installation.
For maximum safety, installers should always carefully read the following warnings.
Store the operation and installation manual in a safe location and remember to hand it over to the new owner if the air conditioner
is sold or transferred.
 Store the user and installation manual in a safe location and remember to hand it over to the new owner if the air to water heat
pump is sold or transferred.
This manual explains how to install Air-Water Heat Pump. The use of other types of units with different control systems may
damage the units and invalidate the warranty. The manufacturer shall not be responsible for damages arising from the use of non
compliant units.
 The air conditioner is compliant with the requirements of the Low Voltage Directive (72/23/EEC), the EMC Directive (89/336/EEC)
and the Directive on pressurized equipment (97/23/EEC).
 The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection of
electric and hydraulic lines. Failure to comply with these instructions or to comply with the requirements set forth in the “Operating
limits” table, included in the manual, shall immediately invalidate the warranty.
 Do not use the units if you see some damages on the units and recognize something bad such as loud noisy, smell of burning.
 In order to prevent electric shocks, fires or injuries, always stop the unit, disable the protection switch and contact SAMSUNG’s
technical support if the unit produces smoke, if the power cable is hot or damaged or if the unit is very noisy.
 Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations shall be
performed by qualified personnel only.
 The unit contains moving parts and electrical parts, which should always be kept out of the reach of children.


2

Do not attempt to repair, move, alter or reinstall the unit by unauthorized personnel, these operations may cause
product damage, electric shocks and fires.
 Do not place containers with liquids or other objects on the unit.
 All the materials used for the manufacture and packaging of the air to water heat pump are recyclable.
The packing material and exhaust batteries of the remote controller(optional) must be disposed of in accordance with local
regulations.
 The air to water heat pump containing a refrigerant must be disposed in authorized center or returned to retailer as special wastes.
 Wear protective gloves to unpack, move, install, and service the unit to avoid your hands being injured by the edge of the parts.
 Do not touch the internal parts (water pipes, refrigerant pipes, heat exchangers, etc) while running the units.
And if you need to adjust and touch the units, have enough time for the unit can be cooled and be sure to wear protective
gloves.
 In case of refrigerant leakage, try to avoid getting in contact with the refrigerant because this could result in severe wounds.
 When you install the Air to water heat pump in a small room, you must consider a proper ventilation to prevent a leakage level
within the maximum permissible limit.
- In that case, you may die from suffocation by some possibility.
 Make sure to safely dispose of packing materials. Packing materials, such as nails and other metal or wooden pallets may cause
children get injured.
 Inspect the product shipped and check if damaged during transport. If the product has some damages,
DO NOT INSTALL and immediately discuss about the damages with the carrier or retailer (if the installer or the authorized
technician has collected the material from the retailer.)
 Our units shall be installed in compliance with the spaces described in the installation manual, to ensure accessibility from both
sides and allow repairs or maintenance operations to be carried out.
If the units installed without complying with procedures described in manual, additional expenses can be asked because special
harnesses, ladders, scaffolding or any other elevation system for repair service will NOT be considered part of the warranty and will
be charged to the end customer.
 Always make sure that the power supply is compliant with local safety standards.
 Verify that the voltage and frequency of the power supply comply with the specifications and input power is sufficient to ensure
the operation of any other domestic appliance connected to the same electric lines.
Always verify that the cut-off and protection switches are suitably selected.
 Always verify that electric connections (cable entry, section of leads, protections…) are compliant with the electric specifications
and with the instructions provided in the wiring scheme. Always verify that all connections comply with the standards applicable
to the installation of air to water heat pumps.
Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.
 Do not connect the earth wire to the gas pipe or water pipe, lighting rod, surge absorber, or telephone earth wire.
If earthing is not complete, it may cause an electric shock or fire.
 Be sure to install both an earth leakage detector and circuit breaker with specified capacity in accordance with relevant local
and national regulations.
- If it is not installed properly, it may cause electric shocks and fire.
 Make sure that the condensed water runs well out of the unit at low ambient temperature. Drain pipe and cond heater can frost/
ice can not grow. If drain work is not effective for releasing condensed water, it can make the units get damaged by massive ice and
system can be stop , covered by ice.
 Install the power cable and communication cable of the indoor and outdoor unit at least 1m away from the electric appliance.
 Protect the unit from rats or small animals. If an animal makes a contact with the electric parts, it can cause malfunctions,
smoke or fire. Please instruct the customer to keep the area around the unit clean.
ENGLISH
3
Product Specifications
Product Line-up
Line-up
Remark
Chassis
Heat
Pump Units
-
Model Name
RC120MHXEA
RC120MHXGA
RC140MHXEA
RC140MHXGA
RC160MHXEA
RC160MHXGA
RC090MHXEA
MIM-E03A
Auxiliary
Parts
Requisite
Control Kit
Standard models:
NH200CHXEA
NH300CHXEA
Option
Domestic Hot
Water tank
Solar connected
NH200CHXES
NH300CHXES
Accessories
 Keep supplied accessories until the installation is finished.
 Hand the installation manual over to the customer after finishing installation.
 The quantities are indicated in parentheses.
Installation manual (1)
4
Drain plug (1)
Fastener-nut(1)
Rubber-cover wire(2)
Drain cap (1)
Product Specifications
Unit
RC120MHXEA
RC120MHXGA
RC140MHXEA
RC140MHXGA
RC160MHXEA
RC160MHXGA
Power Source
-
1P, 220~240VAC 50Hz
3P, 380-415VAC 50Hz
1P, 220~240VAC 50Hz
3P, 380-415VAC 50Hz
1P, 220~240VAC 50Hz
3P, 380-415VAC 50Hz
7°C
kW
12.0
14.0
16.0
2°C
kW
10.0
13.0
15.0
-15°C
kW
12.5
12.5
12.5
COP (A7-W35)
-
4.70
4.50
4.30
Compressor
-
Rotary Inverter
Rotary Inverter
Rotary Inverter
Condenser
-
Brazing type
72 plates
Brazing type
72 plates
Brazing type
72 plates
Evaporator
-
Φ7, FP 1.7, L950
Φ7, FP 1.7, L950
Φ7, FP 1.7, L950
Fan & Motor
-
Propeller, Φ520,
3-blade
BLDC Inverter
Propeller, Φ520,
3-blade
BLDC Inverter
Propeller, Φ520,
3-blade
BLDC Inverter
Flow Switch
LPM
16 ± 1.5
Magnetic (decreasing)
16 ± 1.5
Magnetic (decreasing)
16 ± 1.5
Magnetic (decreasing)
Base Heater
W
150
150
150
Refrigerant
g
2,200 (R410A)
2,200 (R410A)
2,200 (R410A)
Noise
(Heat/Cool, Pressure)
dB
64/62
64 / 62
64 / 62
Water Connection
(In/Out)
Inch
1.0 / 1.0
1.0 / 1.0
1.0 / 1.0
Leaving Water
Temperature
°C
Cooling : 5 ~ 25
Heating : 25 ~ 55
Cooling : 5 ~ 25
Heating : 25 ~ 55
Cooling : 5 ~ 25
Heating : 25 ~ 55
Operating range
(Heat/Cool)
°C
-20~35 / 10~46
-20~35 / 10~46
-20~35 / 10~46
Weight (net)
Kg
112
112
112
Size (WxHxD, net)
mm
940 x 1,420 x 330
940 x 1,420 x 330
940 x 1,420 x 330
Nominal
Capacity
ENGLISH
Type
5
Product Specifications
Type
Unit
RC090MHXEA
Power Source
-
1P, 220~240VAC 50Hz
7°C
kW
9
2°C
kW
9
-15°C
kW
7
COP (A7-W35)
-
4.1
Compressor
-
Rotary Inverter
Condenser
-
Brazing type
48 plates
Evaporator
-
Φ7, FP 1.6, L850
Fan & Motor
-
Propeller, Φ520, 3-blade
BLDC Inverter
Flow Switch
LPM
16 ± 1.5
Magnetic (decreasing)
Base Heater
W
150
Refrigerant
g
1,850 (R410A)
Noise
(Heat/Cool, Pressure)
dB
63/ 60
Water Connection
(In/Out)
Inch
1.0 / 1.0
Leaving Water Temperature
°C
Cooling : 5 ~ 25
Heating : 25 ~ 55
Operating range
(Heat/Cool)
°C
-20~35 / 10~46
Weight (net)
Kg
83
Size (WxHxD, net)
mm
940 x 998 x 330
Nominal
Capacity
6
Application Examples
ENGLISH
• The application examples given below are for illustration purposes only.
•When the SAMSUNG Air-to-Water Heat Pump system is used in series with another heat source (e.g. gas boiler),
ensure that the return water temperature not exceed 55°C.
• The unit is only to be used in a closed water system. Application in an open water circuit can lead to excessive
corrosion of the water piping.
•SAMSUNG can not be put responsible for incorrect or unsafe situations in the water system. Make sure that the
boiler, radiators, convectors, solar collectors, UFHs, FCUs, additional pumps, pipings, and controls in the water
system are in accordance with relevant local laws and regulations under the installer's responsibility.
•By-pass valve shall be installed for space heating loops. When one of loops or all loops are closed , water flow rate
could be low condition. To keep flow rate approximately and prevent flow stop, the by-pass valve shall be installed
between supply collector and return collector.
•SAMSUNG shall not be held liable for any damage resulting from not observing this rule.
Application #1
Mono Outdoor + Control Kit
Outdoor 
 Mechanical Room
 Indoor
TT
r
la
So
2) DHW Sensor Input
& Booster Heater Output
c
lle
Co
r
to
50~55℃
4) Zone Controller #1 (Radiators)
Booster Heater
45℃
Air-vent
Supply Header
Solar Pump
1) Solar Signal Input
Return Header
TT
EE
DHW tank
3) Back up Boiler
Operation Output
Radiators or Convectors
Wired Controller
[Application #2]
Thermostatic
& Balancing Valves
Secondary
Pump #1
5) Zone Controller #2 (UFHs)
Air-vent
Shut-Off &
Drain valve
Secondary
Pump #2
Control Kit
EE
40℃
T
B
T
Supply Header
Strainer
Outdoor unit
RR
Pressure
Relief valve
3.0 bar
Y
Air-vent
3-way Diverting valve
Primary EE
Pump Expansion
7) 3way operation
Tank
Drain 8) Circulator for heat pump
Air-vent
EE
Mixing Tank
6) 2way operation
Return Header
Under-Floor Heating Coils
[Application #1]
Zone Thermostat
& 2-way Valve
[Application #3]
Differential Pressure
bypass valve
Operation
E-7
7
Application Examples
Application #2
Mono Outdoor + Cylinder Unit
RF Receiver
Expansion Vessel
Supply Header
Wired Controller
Return Header
From City Water
Control Kit
(provided by SAMSUNG)
Radiators or Convectors
Hot water Supply
P
Room Thermostat
(Wireless)
T
B
T
F
T
Supply Header
Return Header
Under-Floor Heating Coils
Indoor 
Outdoor 
Outdoor unit
8
Cylinder Unit
Main Components
Dimensions(Overall)
ENGLISH
Heat Pump for R410A.
1-Fan Chassis: RC090MHX
384
330
360
620
528
537
998
973
940
2-Fan Chassis: RC120MHX/RC140MHX/RC160MHX
360
384
330
620
1420
1395
940
9
Main Components
Dimensions (Water pipe)
RC120MHX/RC140MHX/RC160MHX
RC090MHX
513.4
151.5
244.4
83.5
(Unit : mm)
10
(Unit : mm)
Components(RC090)
ENGLISH
③
①
②
NO.
1
2
3
Name
PHE
Base Heater
Water fitting
Note.
48P
SUS316L, 150W
BSPP 1" Male
11
Main Components
Components(RC120/140/160)
①
④
⑤
③
②
NO.
1
2
3
4
5
12
Name
PHE
Base Heater
Water Hose In
Water Hose Out
Water fitting
Note.
72P
SUS316L, 150W
Rubber Hose
Rubber Hose
BSPP 1" Male
Functional Diagram (RC090MHX)
ENGLISH
4WAY
v/v
T/S #7
T/S #1
T/S #3
S/V
S/V
PHE
T/S #5
T/S #2
T/S #4
Comp
Filter
Exp. v/v
Accum
T/S #6
Filter
Part
Description
PHE
Plate heat exchanger
T/S #1
For water outlet temp sensor
T/S #2
For water inlet temp sensor
T/S #3
For PHE In temp
T/S #4
For PHE Out temp
T/S #5
For discharge temp
T/S #6
For Cond temp
T/S #7
For Ambient temp sensor
S/V
Service valve ¼ inch
Accum
ACCUMULATOR
13
Functional Diagram (RC120MHX/RC140MHX/RC160MHX)
4WAY
v/v
T/S #7
HP s/w
T/S #1
T/S #3
S/V
S/V
PHE
T/S #5
T/S #2
T/S #4
Comp
Filter
14
Exp. v/v
Accum
T/S #6
Filter
Part
Description
PHE
Plate heat exchanger
T/S #1
For water outlet temp sensor
T/S #2
For water inlet temp sensor
T/S #3
For PHE In temp
T/S #4
For PHE Out temp
T/S #5
For discharge temp
T/S #6
For Cond temp
T/S #7
For Ambient temp sensor
S/V
Service valve ¼ inch
Accum
ACCUMULATOR
Installing the Unit
Moving the Outdoor Unit
Select the moving route in advance.
Be sure that moving route is safe from weight of the outdoor unit.
Do not slant the product more than 30˚when carrying it. (do not lay the product down sideways)
The surface of the heat exchanger is sharp. Be carefule not to be injured while moving and installing.
ENGLISH
•
•
•
•
Moving the Outdoor Unit by Wire Rope
Fasten the outdoor unit by two 8m or longer wire ropes as shown at the figure. To
prevent from damage or scratches, insert a piece of cloth between the outdoor
unit and rope, then move the unit.
Wire rope
Plate protection
cloth
Moving the outdoor unit with a fork lift
 The appearance of the unit may be differ
ent from the picture depending on the model.
Insert the fork into the wooden pallet at the bottom of the outdoor unit carefrully.
Be careful that the fork does not damage the outdoor unit.
Wooden pellet
Fork lift
Deciding on Where to Install the Outdoor Unit
Decide the installation location regarding the following condition and obtain the user’s approval.
 The outdoor unit must not be placed on its side or upside down, as the compressor lubrication oil will run into the cooling circuit and seriously damage the unit.
 Choose a location that is dry and sunny, but not exposed to direct sunlight or strong winds.
 Do not block any passageways or thoroughfares.
 Choose a location where the noise of the Air to Water Heat Pump when running and the discharged air do not disturb any neighbours.
 Choose a position that enables the pipes and cables to be easily connected to the other hydrauric system.
 Install the outdoor unit on a flat, stable surface that can support its weight and does not generate any unnecessary noise and vibration.
 Position the outdoor unit so that the air flow directly stream towards the open area.
 Place the outdoor unit where there are no plants and animals because they may cause malfunction of outdoor unit.
 Maintain sufficient clearance around the outdoor unit, especially from a radio, computer, stereo system, etc.
 When installing the outdoor unit near seashore, make sure it is not directly exposed to sea breeze.
If you can not find an adequate place without direct sea breeze, make sure to apply anti-corrosion coating on the heat exchanger.
15
Installing the Unit
- Install the outdoor unit in a place (such as near buildings etc.) where it can be prevented from sea breeze which can damage the
outdoor unit.
Outdoor
Sea
unit
breeze
Sea
breeze
Sea
Outdoor
unit
Sea
- If you cannot avoid installing the outdoor unit by the seashore, construct a protection wall around to block the sea breeze.
Protection wall
Outdoor
unit
 Protection wall should be constructed with a solid material
Sea
breeze
Sea
such as concrete to block the sea breeze and the height and
the width of the wall should be 1.5 times larger than the size
of the outdoor unit. Also, secure over 700mm between the
protection wall and the outdoor unit for exhausted air to
ventilate.
- Install the outdoor unit in a place where water can drain smoothly.
 If you cannot find a place satisfying above conditions, please contact manufacturer. Make sure to clean the sea water
and the dust on the outdoor unit heat exchanger.
 Do not install the Air to Water Heat Pump in following places.
- The place where there is mineral oil or arsenic acid.
There is a chance that parts may get damaged due to burned resin.
The capacity of the heat exchanger may reduce or the Air to Water Heat pump may be out of order.
- The place where corrosive gas such as sulfurous acid gas generates from the vent pipe or air outlet
The copper pipe or connection pipe may corrode and refrigerant may leak.
- The place where there is a danger of existing combustible gas, carbon fiber or flammable dust.
The place where thinner or gasoline is handled.
Do not install the outdoor unit in a snowy and cold area (low temperature and high humidity area - where the temperature is below -7°C and humidity is higher than 85%) because according to operation condition (defrost, etc.), ice may be formed in the drain route.
If the ice is accumulated, it may cause critical damage to the product.
ex) lakeside of cold area in winter time, seashore, alpine region and etc.
•This device must be installed according to the national electrical rules.
•With an outdoor unit having net weight upper than 60kg, we suggest do not install it
suspended on wall, but considering floor standing one.
 If the outdoor unit is installed at a height, ensure that its base is firmly fixed in position.
 Make sure that the water dripping from the drain hose runs away correctly and safely.
 When you install the outdoor unit at wayside, you should install it above 2m height or make sure that the heat from the
outdoor unit shouldn't be in direct contact with passersby. (The ground for application :The revision of regulation for facility in building by the law of the Ministry of Construction and Transportation.
16
Space Requirements for Outdoor Unit
When installing 1 outdoor unit
1500 or more
300 or more
 When the air outlet is towards the wall
2000 or more
600 or more
W
hen 3 sides of the outdoor unit are blocked
by the wall
300 or more
 T he upper part of the outdoor unit and the
air outlet is opposite the wall
 T he upper part of the outdoor unit and the air
outlet is towards the wall
1500 or more 300 or more
300 or more
600 or more
1500 or more
300 or more
ENGLISH
 When the air outlet is opposite the wall
W
hen front and rear side of the outdoor unit is
towards the wall
17
AA
Installing
the Unit
When installing more than 1 outdoor unit
1500 or more
(Unit : mm)
300 or more
 When the air outlet is towards the wall
600 or more
600 or more
300 or more
600 or more
1500 or more
600 or more
 When front and rear side of the outdoor unit is towards the wall
1500 or more
600 or more
3000 or more
3000 or more
500 or more
600 or more
 When 3 sides of the outdoor unit are blocked by the wall
500 or more
300 or more
300 or more
300 or more
 T he upper part of the outdoor unit and the
air outlet is opposite the wall
300 or more
 When front and rear side of the outdoor unit is towards the wall
•The units must be installed according to distances declared, in order to permit accessibility from each side,
either to guarantee correct operation of maintenance or repairing products.
The unit’s parts must be reachable and removable completely under safety condition (for people or things).
18
Outdoor unit installation
Fix the outdoor unit with anchor bolts.
(Unit : mm)
Anchor bolt hole
328
•When tightening the anchor bolt
Tighten the rubber washer to prevent the outdoor unit bolt
connection part from corroding
• Make a drain outlet around the base for outdoor unit drainage.
• If the outdoor unit is installed on the roof, you have to check the ceiling strength and waterproof the unit.
384
330
•The anchor bolt must be 20mm or higher from the base
surface.
620
940
Outdoor unit support
Outdoor
Unit
Outdoor Unit
Support
20mm
Anchor bolt
OUTDOOR UNIT INSTALLED ON THE WALL BY RACK
- Ensure the wall will be able to suspend the weight of rack and outdoor unit ;
- Install the rack close to the column as much as possible ;
- Install proper grommet in order to reduce noise and residual vibration
transferred by outdoor unit towards wall.
When installing air guide duct
•Check and make sure that screws do not damage the copper pipe.
• Secure air guide duct on guard fan.
Base Surface
Designed to cut off
residual vibration
from outdoor unit to
rack. (not supplied
with product)
Soft rubber designed to
cut off vibration from rack
to wall. (not supplied with
product)
19
ENGLISH
The outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration, particularly
if the outdoor unit is to be installed in a location exposed to strong winds or at a height, the unit must be fixed to an appropriate
support(wall or ground).
Installing the Unit
Drain work
While Air-Water Heat Pump is running in heating mode, Ice can begin accumulate on the surface of condenser.
To prevent Ice growing, system go into De-frost mode and then Ice on the surface changes to water.
Dropped water from condenser shall be eliminated through running drain holes to prevent Ice growing at low temperature.
≥100mm
In case there is not enough space for drainage out of the unit, additional drain works are required.
Follow the description as below
 Make space more than 100mm between the bottom of the outdoor unit
and the ground for installation of the drain hose.
 Insert the drain plug into the hole on the bottom of the outdoor unit.
 Connect the drain hose to the drain plug.
 Make sure dusts or small branches should not go into the drain hose.
• If drain work is not enough, it can lead to system performance degration and system damages.
Drain Hole Φ20 x 4ea
Air discharge side
30 mm
Drain Plug x 1ea
Drain Cap x 3ea
1. Prepare a water drainage channel around the foundation, to drain waste water
from around the unit.
2. If the water drainage of the unit is not easy, please build up the unit on a foundation
of concrete blocks, etc. (the height of the foundation should be maximum 150mm).
3. If you install the unit on a frame, please install a waterproof plate within 150mm of the underside of the unit in order to prevent the invasion of water from the lower direction.
4. When installing the unit in a place frequently exposed to snow, pay special attention
to elevate the foundation as high as possible.
5. If you install the unit on a building frame, please install a waterproof plate (field supply) (within 150mm of the underside of the unit) in order to avoid the drain water dripping. (See figure)
20
Selecting a location in cold climates
ENGLISH
• When operating the unit in a low outdoor ambient temperature,
be sure to follow the instructions described below.
 To prevent exposure to wind, install the unit with its suction side facing the wall.
 Never install the unit at a site where the suction side may be exposed directly to wind.
 To prevent exposure to wind, install a baffle plate on the air discharge side of the unit.
 In heavy snowfall areas it is very important to select an installation site where the snow will not affect the unit. If lateral snowfall is possible, make sure that the heat exchanger coil is not affected by the snow (If necessary construct a lateral canopy).
1. Construct a large canopy.
2 . Construct a pedestal.
Install the unit high enough off the
ground to prevent it being buried under snow.
 Considering the direction of strong wind, the outdoor unit shall be installed. Strong wind can make the unit turned over so
need to set side of the unit face the direction of wind, not front.
Strong wind
Strong wind
blown air
21
Piping Work
Water connections must be made in accordance with the outlook diagram delivered with the unit, respecting the water in- and
outlet. If air, moisture or dust gets in the water circuit, problems may occur. Therefore, always take into account the following
when connecting the water circuit:
 Use clean pipes only.
 Hold the pipe end downwards when removing burrs.
 Cover the pipe end when inserting it through a wall so that no
dust and dirt enter.
 Use a good thread sealant for the sealing of the connections
The sealing must be able to withstand the pressures and
temperatures of the system.
 When using non-brass metallic piping, make sure to insulate
both materials from each other to prevent galvanic corrosion.
 Because brass is a soft material, use appropriate tooling for
connecting the water circuit. Inappropriate tooling will cause
damage to the pipes.
•
•
•
Be careful not to deform the unit piping by using excessive force when connecting the piping.
Deformation of the piping can cause the unit to malfunction.
Always use two wrenches (spanners) for tightening or loosening the water connections,
and tighten connections with a torque wrench as specified in below table. If not, connections
and parts can be damaged and leaks.
The unit is only to be used in a closed water system. If applications are in open water circuit,
it will generate Heat exchangers fouling, Corrosion, Leak.
Name
22
Tightening Torque
1
BSPP1"
350~380 kgf•cm
34 ~ 37 N•m
2
Flow switch
72~82 kgf•cm
7 ~ 8 N•m
Flushing and air-purging
6. Circulate for long enough to ensure that all air has been bled from the complete water piping system.
• After installations, commissioning should be performed by qualified representatives.
Unless flushing and air-purging works are performed adequately, it might result in malfunctions.
Flushing unit
(or purging cart)
23
ENGLISH
When filling water, the following start-up procedure should be followed.
1. All system components and pipes must be tested for the presence of leaks.
2. Preparation of a make-up water assembly or flushing unit is recommended for installation and service.
3. Before connecting pipes to the hydro unit, flush water pipes clean to remove contaminants during hours using a flushing
unit or tap water pressure if it is adequate (at 2 to 3 bar)
4. Fill water into the hydro unit by opening service valves.
5. Purge the air. (Fill with a flushing unit with sufficient capacity: avoid aerating the water)
Piping Work
 Before installing/commissioning the unit, make sure to check the following points;
- The maximum water pressure of the unit is 2.8 bar static pressure.
- The operating range of water temperature is 15~55˚C at heating conditions and 5~25˚C at cooling conditions.
- The minimum required water flow for operation is 12~16 liters/min.
At all times the required water flow-rates should remain. Otherwise, the unit can stop due to a lack of water.
- Water quality must be according to EN directive 98/83 EC.
- If the unit and the pipes are exposed to freezing temperature, It can cause damage to the hydraulic system.
Special care must be taken to prevent freezing of the total water system.
- The unit is designed to be used in a closed-loop system. Do not use any other components which are designed only for a open-loop system.
- Never use Zn-coated parts in the water circuit.
- All hydraulic parts including field piping must be insulated to reduce heat loss and condensation.
- It is recommended to install the make-up water assembly to feed small quantities of water to the system automatically,
replacing the minor water losses and maintaining the system pressure.
- Drain taps must be provided at all low points of the system to permit complete drainage of the circuit for maintenance use.
- Make sure that the check valves are correctly installed in the system (field supply).
- Flush pipes out with clean water to remove contaminants in pipes during installation.
- The strainer(water filter) must be cleaned after flushing the pipes, and it should be cleaned periodically.
Replace strainer when necessary.
- Charging; Charge the water until a pressure of 1.5~2.0bar by using make-up water assembly(Field supply).
(The water pressure indicated on the manometer will vary depending on the water temperature)
The nominal water pressure in the system should remain about 1.0 bar at all times to avoid air entering the water system.
- Air purging; Make sure that air should be vented from the system at start-up or after installing/ servicing.
The air vent valve must be opened during charging the water (at least 2 turns) in order to remove
all air in the circuit, and a make-up water assembly allows water into the system continuosly.
- In case that the water piping would be located in a higher position than the air vent of the unit, it is necessary to add an additional ones in the highest position of water circuit. The air vent should be located both where water temperatures are the highest and where the height of pipes are the highest.
- Always use materials which are compatible with water used in the system and with the materials used on the indoor unit.
- Select piping diameter in relation to required water flow and available ESP of the pump.
- Use chemical cleaning agents(Begin with acid , finish with alkali).
- Do not operate the system with closed valves because it results in damaging the heat pump.
Freeze Protection
Frost can make some damage on the hydraulic system. It is because it is installed outside house nomally. To avoid taking risks of
freezing problem, special cares such as Anti-freezing fluid are required as below.
Ethylene glycol concentration can vary depeding on outdoor temperature where our system is installed, fill in Ethylene glycol
by mixing as below.
Ethylene Glycol Is Toxic
Ethylene glycol is toxic if swallowed, and therefore is a hazard to animals and small children.
Ethylene glycol must be handled in accordance with relevant local laws and regulations.
24
Outdoor temperature
Ethylene Glycol(%)
23°F (–5°C)
10
14°F (–10°C)
20
5°F (–15°C)
25
–10°F (–20°C)
35
Setting capacity and pre-pressure of the expansion vessel
ENGLISH
When it is required to change the default pre-pressure of the expansion vessel(1 bar), keep in mind the following guidelines:
 Use only dry nitrogen to set the expansion vessel pre-pressure.
 Inappropriate setting of the expansion vessel pre-pressure will lead to malfunction of the system.
Therefore, the pre-pressure should only be adjusted by a licensed installer.
Pre-pressure(bar)
2.5
2.0
1.5
Operation range
1.0
0.5
0.0
150
200
250
300
350
Total water volume(ℓ)
Installation height
difference
(a)
<7m
>7m
Water volume
< 220 Litres
No pre-pressure adjustment required.
Actions required:
•P
re-pressure must be increased, calculate the
appropriate value following by “Calculating
the pre-pressure of the expansion vessel”.
•C
heck if the water volume is lower than
maximum allowed water volume
> 220 Litres
Actions required:
•P
re-pressure must be decreased, calculate
according to
“Calculating the pre-pressure of the expansion
vessel”.
•C
heck if the water volume is lower than
maximum allowed water volume
Expansion vessel of the unit too small
for the installation.
(a) Installation height difference: height difference(m) between the highest point of the water circuit and the indoor unit.
If the unit is located at the highest point of the installation, the installation height is considered 0m.
Calculating the pre-pressure of the expansion vessel
The pre-pressure(Pg) to be set depends on the maximum installation height difference(H) and is calculated as below:
Pg=(H/10+0.3) bar
25
Piping Work
Unit Resistance and PHE resistance by Glycol concentrate
The unit is composed of water pipes and PHE basically.
To ensure correct operation and predict the expected performance, Flow and Resistance table can be used.
And Flow and Resistance characteristic is dependent on on Glyco concentrate.
RC090**
200
180
160
140
kPa
120
WATER
100
EG 10%
EG 20%
80
WG 40%
EG 45%
60
40
20
0
0
10
20
30
40
50
60
70
80
90
LPM
RC160/140/120**
200
180
160
140
kPa
120
WATER
100
EG 10%
EG 20%
80
WG 40%
EG 45%
60
40
20
0
0
10
20
30
40
50
60
70
80
90
LPM
Changing Glycon concentration can cause the pressure drop of the system and it can leads to make flow rate rather slow.
Just in case performance degration, installer shall be careful of flow rate changes.
26
Charging Water
ENGLISH
After installation is completed, the following procedures shall be
used to charge water into the hydro unit.
 Connect water lines to water connections of Air-Water Heat Pump.
 Air vent valve shall be open at least 2turns so that air can be
eliminated in the system.
 Open the service valve in the water supply connection.
 Water pressure of supply line shall be over 2.0 bar for good
charging work.
 Stop water supply when the pressure gauge of hydro unit
indicates around 2.0 bar.
Water Oulet
Water Inlet
RC160
RC090
• There shall be enough space for Service works.
• Water pipe and connections shall be cleaned by using water or cleaner before operating the unit at first time.
• Considering E.S.P and water pump performance, select water plumbing specification and under floor loofs.
•Make sure to calculate the total resistance of piping system and determine the size of pipes before selecting the
required head of pumps. If the pressure loss of total water system is over than designed pressure, an external water pump shall be installed on piping system in series.
• Do not connect power supply while water is charging.
• When initial installation or re-installation is required, remove air by air vent valve in water plumbings which are
installed by local installers to prevent air trap in the system while charging water.
• Make sure that back flow preventer (check valves) shall be installed on main supply line to prevent from
contaminating the city water.
- It is recommended to install the make-up water assembly to prevent from contaminating the city water.
- Check valves in the make-up water assembly can prevent running water inside hydro unit from contaminating
water supplies during installation or maintenance works.
27
Piping Work
Pressure relief valve
MONO Unit does not have a pressure relief valve. The valve shall prevents abnomal water pressure from damaging the the system by
opening at 3.0 bar .
•Make certain that the discharged water out of drain pan does not affect other elements.
Filter / Strainer
Installation of Filter / Strainer is mandatory for water system. The Filter or Strainer shall be located in front of inlet pipe of PHE.
While operating the system, some dust and foreign materials can circulate the system and can make the whole system not work
well due to blockage of heat exchangers and corrosion in some components.
Filter mesh : #30
Piping insulation
The complete water circuit, inclusive all piping, must be insulated to prevent condensation during cooling operation and
reduction of the heating and cooling capacity as well as prevention of freezing of the outside water piping during winter time.
The thickness of the sealing materials must be at least 9 mm with (0.035 W/mK) in order to prevent freezing on the outside
water piping.
If the temperature is higher than 86°F (30°C) and the humidity is higher than RH 80%, then the thickness of the sealing materials
should be at least 20 mm in order to avoid condensation on the surface of the sealing.
28
AA
Wiring
•During the unit installation make first refrigerant connections and then electrical connections. If unit is uninstalled
first disconnect electrical cables, then refrigerant connections.
•Connect the air conditioner to grounding system before performing the electrical connection.
• When installing the unit, you shouldn't use inter connection wire.
Example of EHS System
When using ELB for 1 phase
Power cable
Communication cable
Outdoor Unit
Communication cable
ELCB
1
Grounding
Control kit
ELCB
1
Grounding
When using ELB for 3 phase 4 wires
Power cable
Communication cable
MCCB
3
Outdoor Unit
Communication cable
ELCB
3
Grounding
Control kit
Power cable (1¢)
ELCB
1
Grounding
 If an outdoor unit is installed in a place in danger of an electric leak or submergence, you must install the ELB.
 Installation of control kit must be followed its Installation manual.
29
ENGLISH
Two electronic cables must be connected to the outdoor unit.
 The connection cord between indoor unit and outdoor unit.
 The power cable between outdoor unit and auxiliary circuit breaker.
 Specially for Russian and European market, before installation, the supply authority should be consulted to determine the
supply system impendance to ensure compliance.
AA
Wiring
Power Cable Specifications
Single Phase
Type of outdoor unit
Outdoor
Power supply
A
RC090MHXEA
1Φ, 220-240V, 50Hz
B
RC120MHXEA
1Φ, 220-240V, 50Hz
C
RC140MHXEA
RC160MHXEA
1Φ, 220-240V, 50Hz
Power cable
MAX. LENGTH
mm²,wires
m
4.0/3
<10m
6.0/3
10m<L<20m
4.0/3
< 10m
6.0/3
10m<L<20m
Type GL
A
30
30
4.0/3
< 10m
6.0/3
10m<L<20m
Power cable
MAX. LENGTH
mm²,wires
m
A
1.5 / 3
<10m
10
2.5 / 3
10m<L<20m
10
4.0 / 3
<10m
20
6.0 / 3
10m<L<20m
20
6.0 / 3
<10m
40
8.0 / 3
10m<L<20m
40
40
 The power cable is not supplied with air conditioner.
 For power cable, use the grade H05RN-F materials in 1Φ system.
 This equipment complies with "IEC 61000-3-12".
Indoor Unit
Load
Power supply
No Heater
(Water Pump, Valve, Wired RMC)
MIM-E03A
1Φ, 220-240V, 50Hz
Booster Heater (3kw)
Booster Heater (~3kw)
+ Backup Heater (~3kw)
Type GL
 The Power cable is not supplied with the heat pump.
 For power cable, use the grade H07RN-F materials in 1Φ system.
 If you connect Backup Heater at separated power cable, you can reduce wire size. (Please refer to indoor unit installation manual)
3 Phase
Type of outdoor unit
Outdoor
A
Power supply
3Φ, 380~415V, 50Hz
B
RC120MHXGA
3Φ, 380~415V, 50Hz
C
RC140MHXGA
RC160MHXGA
3Φ, 380~415V, 50Hz
power cable
mm²,wires
m
1.5/4
<10m
2.5/4
10m<L<20m
1.5/4
<10m
2.5/4
10m<L<20m
1.5/4
<10m
2.5/4
10m<L<20m
 The power cable is not supplied with air conditioner.
 For power cable, use the grade H07RN-F materials in 3Φ system.
 Ssc(MVA) : 3.5(Type of outdoor unit A), Ssc(MVA) : 3.8(Type of outdoor unit B and C)
30
MAX. LENGTH
Type GL
A
20
20
20
Between Indoor unit and Outdoor unit Connection Cable Specifications(Common in use)
Home Server
0.75mm², 2wires
0.75mm², 2wires
ENGLISH
Communication Cable
 For Indoor Power Cable, use the grade H07RN-F or H05RN-F materials.
When installing the indoor unit in a computer room or network room,
use the double shielded (Tape aluminum / polyester braid + copper )
cable of FROHH2R type.
1-phase terminal block spec
AC power : M5 screw
L
Communication : M3 screw
N
6.7
12
9.7
15
3-phase terminal block spec
AC power : M4 screw
L1(R) L2(S) L3(T)
Communication : M3 screw
N
6.7
9.95
11.55
9.7
31
AA
Wiring
Wiring Diagram of Power Cable
When using ELB for 1 phase and 3 phase
 1 phase
L
N
Cable tie
Power Supply
Electrical component box
Cable clamp
MCCB
ELB
Main power cable
MCCB
Communication
cable
3 phase

L1(R) L2(S) L3(T)
N
Indoor Unit
Cable tie
 The appearance of the unit may be different from the picture depending on the model.
Cable clamp
3 Phase 4 Wires power
cable (AC 380V)
Communication
cable
• You should connect the power cable into the power cable terminal and fasten it with a clamp.
•The unbalanced power must be maintained within 2% of supply rating.
- If the power is unbalanced greatly, it may shorten the life of the condenser. If the unbalanced power is exceeded over 4%
of supply rating, the indoor unit is protected, stopped and the error mode indicates.
•To protect the product from water and possible shock, you should keep the power cable and the connection cord of the
indoor and outdoor units within ducts. (with appropriate IP rating and material selection for your application)
•Ensure that main supply connection is made through a switch that disconnects all poles, with contact gap of a least 3 mm.
•Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.
•Keep distances of 50mm or more between power cable and communication cable.
32
Wiring Diagram of Connection Cord
1 phase
3 phase
L
N
F2
F1
L
Control kit
F2
F1
L1(R) L2(S) L3(T)
N
ENGLISH
Control kit
L
N
N
F1
F2
Cable tie
Cable tie
Cable clamp
Communication cable
3 Phase 4 Wires power cable (AC 380V)
Main power cable
Communication cable
Cable clamp
• Lay the electrical wiring so that the front cover does not rise up when doing wiring work and attach the front cover securely.
• Ground wire for the indoor unit and outdoor unit connection cable must be clamped to a soft copper tin-plated eyelet terminal with M4 screw hole(NOT SUPPLIED WITH UNIT ACCESSORIES).
Connecting the Power Terminal
C
onnect the cables to the terminal board using the compressed ring terminal.
 Cover a solderless ring terminal and a connector part of the power cable and then connect it.
Silver solder
B
D
Nominal
Nominal
dimensions dimensions Standard
Standard Allowance
Allowance
for cable
for screw dimension
dimension
[mm2(inch2)] [mm(inch)] [mm(inch)] [mm(inch)] [mm(inch)] [mm(inch)]
4(3/8)
9.5(3/8)
4/6
(0.006/
0.009)
8(3/16)
15(9/16)
10(0.01)
8(3/16)
15(9/16)
16(0.02)
8(3/16)
16(10/16)
8(3/16)
12(1/2)
8(3/16)
16.5(10/16)
8(3/16)
16(10/16)
25(0.03)
35(0.05)
8(3/16)
22(7/8)
50(0.07)
8(3/16)
22(7/8)
70(0.10)
8(3/16)
24(1)
d1
Standard
dimension
[mm(inch)]
E
F
L
d2
Min. Min. Max. Standard Allowance
Allowance [mm
[mm [mm dimension [mm(inch)]
[mm(inch)] (inch)] (inch)]
(inch)] [mm(inch)]
±0.2
(±0.007)
5.6(1/4)
+0.3(+0.011)
-0.2(-0.007)
3.4(1/8)
±0.2
(±0.007)
±0.2
(±0.007)
±0.2
(±0.007)
7.1(1/4)
4.5(3/16)
9(3/8)
+0.3(+0.011)
-0.2(-0.007)
+0.3(+0.011)
-0.2(-0.007)
5.8(1/4)
±0.2
(±0.007)
±0.2
(±0.007)
±0.3
(±0.011)
11.5(7/16)
+0.5(+0.019)
-0.2(-0.007)
7.7(5/16)
±0.2
(±0.007)
±0.3
(±0.011)
13.3(1/2)
+0.5(+0.019)
-0.2(-0.007)
9.4(3/8)
±0.2
(±0.007)
±0.3
(±0.011)
±0.4
(±0.015)
13.5(1/2)
+0.5(+0.019)
-0.2(-0.007)
+0.5(+0.019)
-0.4(-0.015)
11.4(7/16)
±0.3
(±0.011)
±0.4
(±0.015)
17.5(11/16)
13.3(1/2)
5
6 (3/16)
(1/4)
9
(3/8)
7.9
9
(5/16) (3/8)
9.5
13
(5/16) (1/2)
15
11 (5/8)
(3/8) 13
(1/2)
13
12.5 (1/2)
(1/2) 13
(1/2)
17.5 14
(11/16) (9/16)
18.5 20
(3/4) (3/4)
20
(3/4)
28.5
(1-1/8)
30
(1-3/16)
33
(1-5/16)
34
(1-3/8)
38
(1-1/2)
43
(1- 11/16)
50
(2)
51
(2)
4.3
(3/16)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
8.4
(1-3/16)
+ 0.2(+0.007)
0(0)
+ 0.4(+0.015)
0(0)
+ 0.4(+0.015)
0(0)
+ 0.4(+0.015)
0(0)
t
Min.
[mm
(inch)]
0.9
(0.03)
1.15
(0.04)
1.45
(0.05)
+ 0.4(+0.015)
0(0)
1.7
(0.06)
+ 0.4(+0.015)
0(0)
1.8
(0.07)
+ 0.4(+0.015)
0(0)
+ 0.4(+0.015)
0(0)
1.8
(0.07)
2.0
(0.078)
33
AA
Wiring
C
onnect the rated cables only.
 Connect using a driver which is able to apply the rated torque to the screws.
 If the terminal is loose, fire may occur caused by arc. If the terminal is connected too firmly, the terminal may be damaged.
M3
M4
M5
5.0~6.0
12.0~15.0
20.0~25.0
Tightening Torque (kgf • cm)
Communication : F1, F2
3phase AC power : L1(R), L2(S), L3(T), N
1phase AC power : L, N
•When connecting cables, you can connect the cables to the electrical part or connect them through the holes
below depending on the spot.
•Run transmission wiring between the indoor and outdoor units through a conduit to protect against external
forces, and feed the conduit through the wall together with refirgerant piping.
•Remove all burrs at the edge of the knock-out hole and secure the cable to the outdoor knock-out using lining and
bushing with an electrical insulation such as rubber and so on.
•Must keep the cable in a protection tube.
•Keep distances of 50mm or more between power cable and communication cable.
•When the cables are connected through the hole, remove the Plate bottom.
34
Testing operations
AA
1. Check the power supply between the outdoor unit and the auxiliary circuit breaker.
 1 phase power supply : L, N
 3 phases power supply : R,S,T,N
2. Check the indoor unit.
1) C
heck that you have connected the power and communication cables correctly. (If the power cable and communication
cables one mixed up or connected incorrectly, the PCB will be damaged.)
2) C heck the thermistor sensor, drain pump/hose, and display are connected correctly.
3. Press K1 or K2 on the outdoor unit PCB to run the test mode and stop.
 Press K1 button  Start Heating test mode  Press K1 button  Stop  Heating test mode 7-seg display :
 Press K2 button  Start Cooling test mode  Press K2 button  Stop  Cooling test mode 7-seg display :
 Press K1 button twice Start Defrost test mode  Press K1 button  Stop  Defrost test mode 7-seg display :
Condition 1 : The outdoor temperature is under 10°C
Condition 2 : All the temperature conditions should meet the defrost conditions
ON
1 2 3 4
5 6
7 8
4. After 12 minutes of stationary condition check each indoor unit air treatment :
 Cooling mode(indoor unit check)  Inlet air temp. - Outlet air temp. : From 10°C to 12°C
 Heating mode(indoor unit check)  Outlet air temp. - Inlet air temp. : From 11°C to 14°C
 In heating mode, the indoor fan motor can remain off to avoid cold air blown into conditioned space.
5. How to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode) :
Outdoor unit type A, B, and C :
Press [K3] button to reset the power supply of the outdoor unit and deactivate the eco mode (standby mode) 
Only for RC090, RC100, RC110, RC125, RC140 series model.
35
ENGLISH
Testing
AA
operations
6. View Mode : When the K4 switch is pressed, you can see information about our system state as below.
Short push
Display contents
SEG1
SEG2
SEG3
Unit
Order frequency
1
Hundreds' digit
Tens' digit
Unit digit
Hz
2
Current frequency
2
Hundreds' digit
Tens' digit
Unit digit
Hz
3
The number of current indoor units
3
Hundreds' digit
Tens' digit
Unit digit
Hz
4
The sensor for outdoor air intake
4
+/-
Tens' digit
Unit digit
°C
5
Discharge sensor
5
Hundreds' digit
Tens' digit
Unit digit
°C
6
Eva-Mid sensor
6
+/-
Tens' digit
Unit digit
°C
7
Cond sensor
7
+/-
Tens' digit
Unit digit
°C
8
Current
8
Tens' digit
Unit digit
The first place of decimals
9
Fan RPM
9
Thousands' digit Hundreds' digit
Tens' digit
10
Target discharge temperature
A
Hundreds' digit
Tens' digit
Unit digit
°C
11
EEV
B
Hundreds' digit
Tens' digit
Unit digit
step
12
The capacity sum of indoor units
C
Tens' digit
Protective control
D
0: Cooling
1: Heating
The first place of decimals
Frequency status
0: Normal
1: Hold
2: Down
3: Up_limit
4: Down_limit
kW
13
Unit digit
Protective control
0: No Protective control
1: Freezing
2: Non-stop defrosting
3: Over-load
4: Discharge
5: Total electric current
14
The temperature of heat radiating plate
E
Hundreds' digit
Tens' digit
Unit digit
15
S/W check
F
-
-
°C
rpm
-
-
-
Long push 1
Main micom version
Year (Hex)
Month (Hex)
Date (Tens' digit)
Date (Unit digit)
After short push 1
Inverter micom version
Year (Hex)
Month (Hex)
Date (Tens' digit)
Date (Unit digit)
After short push 1
E2P version
Year (Hex)
Month (Hex)
Date (Tens' digit)
Date (Unit digit)
※ Long push K4(Main micom ver.)  short push 1 more(Inv. micom ver.)  short push 1 more(E2P. ver.)
7. DIP switch option
On (default)
Off
switch 1
Auto address
Manual address
switch 2
Base heater operating time = 15 Min.
Base heater operating time = 20 Min.
switch 3
Disable snow prevention control
Enable snow prevention control
switch 4
Enable base heater
Disable base heater
※ When snow prevention mode is in use, eco mode(standby mode)will not be functional.
36
SEG4
1
Trouble shooting
The table below give indication about self diagnostic routine. Some of error code requires activities exclusively for Authorized
Service Center.
ENGLISH
Outdoor unit
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.
No.
LED Display
Red Green Yellow
Displayed
PCB Assy
Meaning
Remarks
Normal operation
MAIN/INVERTER (MAIN : IndoorOutdoor : Green ON)
(INVERTER : MAIN PCBINVERTER PCB : Green ON)
Unit quantity miss matching between indoor and
Check indoor quantity setting in
MAIN
outdoor.
outdoor.
Error Code
-



1









3



4



MAIN
Outdoor temp sensor error
Check Outdoor sensor Open/Short
E221
5



MAIN
Cond. temp sensor error
Check Cond. sensor Open/Short
E231
E251
2
MAIN/INVERTER
Abnormal state, no communication between Indoor
and Outdoor Main PCB
E201
Check electrical connection and setting
E202
MAIN/INVERTER 1min. Time out of communcation error(MainInverter) Check electrical connection and setting
E203
6



MAIN
Discharge temp sensor error
Check Discharge sensor Open/
Short
7



MAIN
OLP Sensor Error
Check OLP sensor Open/Short
E320
8



MAIN
Detection of Outdoor Freezing when Comp. Stop
Check Outdoor Cond.
E403
9



MAIN
Protection of Outdoor Overload when Comp. Stop Check Comp. when it start
10



MAIN
11



MAIN
Discharge temperature of a compressor in an
outdoor unit is overheated.
Heating operation is not available since the outdoor
Heating
air temperature is over 35°C.
Cooling operation is not available since the outdoor
Cooling
air temperature is lower than -5°C.
E404
E416
E440
E441
FAN1 error
E458
FAN2 error
E475
12



MAIN/INVERTER Outdoor unit BLDC Fan 1 or Fan 2 error
13



MAIN/INVERTER Comp. Starting error
14



MAIN
Primary Current Trip error
15



MAIN
Over current trip / PFC over current error
16



MAIN/INVERTER IPM(IGBT Module) Over Current(O.C)
17



MAIN/INVERTER Comp. Over load error
18



MAIN/INVERTER DC-Link voltage under/over error
Check AC Power or DC_Link voltage
E466
19



MAIN/INVERTER Comp. wire missing error
Check Comp. wire
E467
20



MAIN/INVERTER Current sensor error
Check Outdoor Inverter PBA
E468
21



Check Outdoor EEPROM date
E471
22



MAIN/INVERTER IPM(IGBT Module) or PFCM Temperature sensor Error Check Outdoor Inverter PBA
E474
23



MAIN/INVERTER PFC Overload Error
Check Outdoor Inverter PBA
E484
24



MAIN/INVERTER IPM is over heated.
Check Outdoor Inverter PBA
E500
25



MAIN
GAS Leak error
Check indoor and outdoor unit model
E554
26



MAIN
Capacity miss match between indoor and outdoor Check indoor and outdoor unit model
E556
 Blink
 On
 Off
MAIN
Outdoor EEPROM error
E461
E462
Check OLP sensor
E463
E464
E465
37
Maintenance
Listed checks and inspections shall be implemented regularly so that the unit can operate as design intention in production
site.
Always switch off the unit and remove power cable from the electric source before carrying out any maintenance or repair
works.
Mentioned actions shall be carried out at least once a year by qualified personnel.
1. Water pressure
- Check if the water pressure is above 0.3 bar. If necessary, supplement water.
2. Water filter
- Use water filter which is available for cleaning and clean it regularly.
3. Water pressure relief valve
- Check for correct operation of the pressure relief valve.
• The valve will work over the designated pressure.
• If there is leakage of water or water splashed in normal condition, please contact your local installer.
4. Glycol
- Record and check the glycol concentration and the pH-value in the system at least once a year.
• A
Ph-valve below 8.0 indicates that a significant portion of the inhibitor has been depleted and that more inhibitor needs
to be added.
• When the Ph-value is below 7.0 then oxidation of the glycol occurred, the system should be drained and flushed
thoroughly before severe damage occurs.
• Make sure that the disposal of the glycol solution is done in accordance with relevant local and national regulation.
Using Service valve
To Open the Service Valve
1. Open the cap and turn the stop valve counterclockwise by using a
hexagonal wrench.
2. Turn it until the axis is stopped.
•Do not apply excessive force to the stop valve and always use special
instruments. Otherwise, the stopping box can be damaged and the
back sheet can leaks.
•If the watertight sheet leaks, turn the axis back by half, tighten the
stopping box, then check the leakage again. If there is no leakage any
more, tighten the axis entirely.
3. Tighten the cap securely.
To Close the Service Valve
1.
2.
3.
4.
Remove the cap.
Turn the stop valve clockwise by using a hexagonal wrench.
Tighten the axis until the valve reached the sealing point.
Tighten the cap securely.
•When you use the service port, always use a charging hose, too.
•Check the leakage of refrigerant gas after tightening the cap.
•Must use a spanner and wrench when you open/tighten the service valve.
38
Body Cap
O-RING
SPINDLE
Adding refrigerant
Procedures as below is describing how to adding the amount of refrigerant.
•R410A Shall be added as liquid phase.
•Adding and recharging works shall be by Service valves.
1. Connect the manifold gauge and purge the manifold gauge.
2. Open the manifold gauge valve of the liquid side service valve and add the liquid refrigerant.
3. If you cannot fully recharge the additional refrigerant while the outdoor unit is stopped,
use the key on PCB in the Heat Pump to run for recharging the remaining refrigerant.
Adding refrigerants in running condition
1) Press the function key for adding refrigerant.
2) After 30 minutes of operation, open the service valve on low pressure side in Heat Pump.
3) Open the valve for low pressure side in the manifold gauge to recharge the remaining refrigerant.
4) After completing, close the valves in manifold gauge and eliminate the hoses from service valves.
Manifold gauge
Low pressure
side
High pressure
side
High pressure side Low pressure side
Service valve
Scale
39
ENGLISH
The Heat Pump unit is provided to users with basic amounts of refrigerants as initial setting values.
While using the unit or doing refrigerant piping works, there can be some loss of refrigerants compared to initial amounts.
To run the units properly, keep the amount of refrigerant which SAMSUNG designated.
Maintenance
Important information regulation regarding the refrigerant used
This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere.
•Inform user if system contains 3 kg or more of fluorinated greenhouse gases. In this case, it has to be checked for leakage at
least once every 12 months, according to regulation n°842/2006. This activity has to be covered by qualified personnel only.
In case situation above (3 kg or more of R-410A), installer (or recognised person which has responsability for final check)
has to provide a maintenance book, with all the information recorded according to REGULATION(EC) N° 842/2006 OF THE
EUROPEAN PARLIAMENT AND OF THE COUNCIL of 17 May 2006 on certain fluorinated greenhouse gases.
Please fill in with indelible ink,
-  the factory refrigerant charge of the product,
-  the additional refrigerant amount charged in the field and
-
+ the total refrigerant charge.
on the refrigerant charge label supplied with the product.
a. Factory refrigerant charge of the product: see unit name plate
b. Additional refrigerant amount charged in the field(Refer to the
above information for the quantity of refrigerant replenishment.)
c. Total refrigerant charge
d. Refrigerant cylinder and manifold for charging
>> The filled-out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop valve cover).
40
Refrigerant type
GWP value
R410A
1975
 GWP=Global Warming Potential
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol.
Indoor unit

d
a
 = (
 = (
b
) kg
) kg

Outdoor unit
+ = (
) kg
c
Memo
41
Memo
42
Memo
AA
43
"EEE Yönetmeliğine Uygundur"
"This EEE is compliant with RoHS"
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