York ERJC 36 User manual

by johnson controls
ERJC 36, 42 R
Heat pump Multisplit Inverter Condensing units
Installation Instructions
Johnson Controls Manufacturing España, S.L. is participating in the EUROVENT Certication Programme.
Products are as listed in the EUROVENT Directory of Certied Products, in the program AC1, AC2,
AC3, LCP and FC.
The LCP program covers air condensed water chillers and heat pumps of up to 600 kW
Ref:
GB

User Notice
The total capacity of the indoor units which runs at the same time can not exceed 150% of
that of the outdoor units; otherwise, the cooling (heating) effect of each indoor unit would be poor.
Switch the main power on 8 hours before start the unit, helpful for a successful startup.
It is a normal phenomenon that the indoor unit fan will still run for 20~70 seconds after the
indoor unit receives the “stop” signal so as to make full use of after-heat for the next operation.

they can back to the normal condition by harmonizing their running modes: the cooling mode is
compatible with the dehumidifying mode and the fan mode can go with any other mode. If the
supply power fails when the unit is running, then the indoor unit will send the “start” signal to the
outdoor unit three minutes later after power recovery.
During installation, the communication cable and the power cord must not be twisted
together but instead separated with an interval of at least 2cm; otherwise the unit is likely to run
abnormally.
Cautions for the Debugging and Maintenance Personnel:
During debugging and maintenance, prior to the startup of the compress make sure the heating
belt of the compressor has been energized for at least eight hours! Once the compressor is started,
it must be guaranteed that it works continuously for at least 30 minutes, otherwise it would be
damaged!
This series outdoor units are matched with the free macth series R410A GMV multi VRF
indoor units under the same working conditons exported to European Union.
This product must not be disposed together with the domestic waste. This product
has to be disposed at an authorized place for recycling of electrical and electronic
appliances.
Thank you for purchasing YORK air conditioners. Before use, please read this manual
carefully and keep it properly for further reference.

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Contents
Safety Precautions....................................................................................... 4
Installation Instructions............................................................................... 5
1 Installation Location and Matters Needing Attention.......................................... 5
2 Installation of the Outdoor Unit........................................................................... 7
3 Connection between Indoor and Outdoor Units .................................................. 9
4 Refrigerant Charging and Trial Running.................................................................. 11
Working Principles of the Unit ................................................................. 14
Parts and Components of the Unit ............................................................ 15
Maintenance.............................................................................................. 16
1 Check before the Seasonal Use ......................................................................... 16
2 Check after the Seasonal Use ............................................................................ 16
Troubleshooting ........................................................................................ 17
1 Please check the following items before contact the maintenance serviceman. 17
................................. 18
3 Error description ................................................................................................ 18
4 After-Sales Service ............................................................................................ 24
Function Description................................................................................. 25
Performance Parameters ........................................................................... 26

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Safety Precautions
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ⅠSafety Precautions
Please read this manual carefully before use and operate correctly as instructed in this manual.
Please especially take notice of the following two symbols：
Warning! It indicates improper operation which will lead to human casualty or sever injury.
Cuation! It indicates improper operation which will lead to injury or property damage.
Warning!
◆The installation should be committed to the appointed service center; otherwise it all cause water
leakage, electric shock or re etc.
◆Please install the unit where is strong enough to withstand the weight of the unit; otherwise, the unit
would fall down and cause injury or death.
◆The drain pipe should be installed as instructed in the manual to guarantee the proper drainage;
meanwhile it should be insulated to prevent condensing; otherwise the improper installation would cause
water leakage and then wet the household wares in the room.
◆ Do not use or place any inammable or explosive substance near the unit.
◆Under the occurrence of an error (like burning smell etc.), please cut off the main power supply of the
unit.
◆ Keep good ventilation in the room to avoid oxygen decit.
◆ Never insert your nger or any other object into the air outlet/inlet grille.
◆Please take notice of the supporting frame of the unit to see if it is damaged over the long time period
of use.
◆ Never ret the unit and contact the sales agent or the professional installation personnel for the repair
or relocation of the unit.
◆Non-professional personnel are prohibited to dismantle the electric box owing to the high voltage of
the outdoor unit.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be
connected in xed wiring.
Cuation!
◆ Before installation, please check if the power supply corresponds with the requirement specied on the
nameplate and also check its security.
◆Before use, please check if the piping and wiring are correct to avoid water leakage, refrigerant
leakage, electric shock, re etc.
◆The main power supply must be earthed to avoid the hazard of electric shock and never connect this
earth wire to the gas pipe, running water pipe, lightening rod or phone cable’s earth lead.
◆ Turn off the unit after it runs at least ve minutes; otherwise its service life will be shortened.
◆Do not allow children operate this unit.
◆Do not operate this unit with wet hands.
◆ Cut off the main power supply prior to the cleaning of the unit or the replacement of the air lter.
◆When the unit is not to be used for a long time, please cut off the main power supply of the unit.
◆Do not expose the unit to the moist or corrosive circumstances.
◆Never step on the unit or place any object on it.
◆It is suggested to have a power-on test annually.

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Installation Instructions
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Installation Instructions
1 Installation Location and Matters Needing Attention
The installation of the unit must comply with the national and local safety regulations. The
installation quality directly affects the normal use, so the user should not carry out the installation
personally. Instead, the installation and debugging should be done by the professional personnel.
Only after that, can the unit be energized.
a. How to select the installation location for the indoor unit
1) Where there is no direct sunlight.
2) Where the top hanger, ceiling and the building structure are strong enough to withstand the weight of
the unit.
3) Where the drain pipe can be easily connected to outside.
5) Where the refrigerant pipe of the indoor unit can be easily led to outside.
7) Where there is no corrosive gas, heavy dust, salt mist, smog or moisture.
b. How to select the installation location for the outdoor unit
1) The outdoor unit must be installed where the bearing surface is stable and secure enough.
2) The outdoor unit and indoor unit should be placed as close as possible to minimize the length and
bends of the refrigerant pipe.
3) Do not install the outdoor unit under the window or between the buildings to prevent the normal
running noise entering the room.
5) The outdoor unit should be installed where ventilation is in good condition so that the unit can take in
and discharge enough air.
dust, salt fog and other severely polluted air.
No air guiding pipe is allowed to be installed at the air inlet/outlet of the outdoor unit. Under
the heating mode, the condensate water would drip down from the base frame and would be frozen
when the outdoor ambient temperature is lower than 0ºC（32 ºC）. Besides, the installation of the
outdoor unit should not affect the heat radiation of the unit.
CUATION ！
The unit installed in the following places is likely to run abnormally. If unavoidable, please contact the
professional personnel at the YORK appointed service center. ①where is full of oil; ②alkaline soil off the
sea; ③where there is sulfur gas（like sulfur hot spring）; ④where there are devices with high frequency
(like wireless devices, electric welding devices, or medical equipments); ⑤special circumstances.
c. Electric Wiring
1) The installation must be done in accordance with the national wiring regulations.
2) Only the power cord with the rated voltage and exclusive circuit for the air conditioning can be used.
3) Do not pull the power cord by force.
4) The electric installation should be carried out by the professional personnel as instructed by the local
laws, regulations and also this manual.
5) The diameter of the power cord should be large enough and once it is damaged it must be replaced by

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Installation Instructions
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the dedicated one.
6) The earthing should be reliable and the earth wire should be connected to the dedicated device of the
building by the professional personnel. Besides, the air switch coupled with the leakage current protection
switch must be equipped, which is of enough capacity and of both magnetic and thermal tripping functions in
case of the short circuit and overload.
Table 1
Models Power Supply Capacity of the Air Switch Recommended Cord
（pieces× sectional area）
ERJC(36)R 220-240V~ 50Hz 32A 6mm2×3
ERJC(42)R 220-240V~ 50Hz 32A 6mm2×3
d. Earthing Requirements
2) The yellow-green line of the air conditioner is the earth line and can not be used for other purpose, cut
3) The reliable earth terminal should be provided and the earth wire can not be connected to any of the
following places.
①. Running water pipe;
②. Coal gas pipe;
③. Sewage pipe;
④. Other places where the professional personnel think unreliable.
ERJC(42)R
Fig.1
POWER
INDOOR UNIT AINDOOR UNIT BINDOOR UNIT CINDOOR UNIT D
OUTDOOR UNIT
INDOOR UNIT E
XT2
XT1
XT3
XT4
XT5
XT6
N
L

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Installation Instructions
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ERJC(36)R
Fig.2
e. Noise Precautions
1) The air conditioning unit should be installed where ventilation is in good condition, otherwise the
working capability of the unit would be reduced or working noise would be increased.
2) The air conditioning unit should be installed on the base frame which is stable and secure uncouth to
withstand the weight of the unit; otherwise it would incur vibration and noise.
3) During the installation, a consideration should be taken that the produced hot air or noise should not
affect neighbors and surroundings.
4) Do not stack obstacles near the air outlet of the outdoor unit; otherwise it would reduce the working
capability of the unit or increase the working noise.
5) In the event of the occurrence of abnormal noise, please contact the sales agent as soon as possible.
f. Accessories for Installation
Refer to the packing list for the accessories of the indoor and outdoor units respectively.
2 Installation of the Outdoor Unit
a. Precautions for the Installation of the Outdoor Unit
The following rules should be followed when the installation location is being considered so as to let the
unit run well enough.
1) The discharged air from the outdoor unit won’t return back and enough space should be left for
maintenance around the unit.
2) The installation location should be in good condition so that the unit is able to take in and discharge
enough air. Besides, make sure there is no obstacle at the air inlet/outlet of the unit. If there is, remove it.
3) The unit must be installed where it is secure enough to support the weight of the unit and capable of
reducing to some extent noise and vibration to make sure they do not bother your neighbors.
4) The designated lifting hole must be used for lifting the unit and protect the unit carefully during lifting
to prevent damaging the mental sheet which would result in rusting in future.
5) The unit should be installed where there is as little as direct sunlight.
6) The unit must be installed where the rain water and defrosting water can be drained.
7) The unit must be installed where the unit won’t be covered by the snow and won’t be affected by
rubbish and oil fog.
8) Rubber or spring shock absorbers should be used during the installation of the outdoor unit to meet the
noise and vibration requirements.
9) The installation dimensions should meet the requirement covered in this manual and the outdoor unit
10) The installation should be carried out by the professionally skilled personnel.
b. Installation of the Outdoor Unit
1) Outline Dimension of the Outdoor Unit.
POWER
INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT D
XT5X T4 XT3X T2 XT1
OUTDOOR UNIT
NL

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Installation Instructions
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ERJC(36)R ERJC(42)R
Fig.3 Fig. 4
2) During the transportation of the outdoor unit, two lifting ropes long enough must be used in four
directions and the separation angle must be less than 40°prevent the center of unit deviating.
he support leg and base frame of the unit.
4) The unit should be installed on a concrete base frame with a height of 10cm.
5) The installation space of the unit should be as required in Fig.5.
Installation Space Requirements of the Outdoor Unit: ERJC(36)R 、ERJC(42)R
Fig.5
3 Connection between Indoor and Outdoor Units
a. Wiring of the Power Cord
CAUTION ！
A breaker must be installed, capable of cutting off the power supply for the whole system.
1) Open the side plate.
2) Let the power cord go through the rubber ring.
3) Connect the power card to the terminals “L”, “N” and also the earthing bolt, and then connect the
wiring terminals “N(1),2,3” of the indoor unit to those of the outdoor unit correspondingly.
4) Fix the power cord with wire clips.
572
378
1022
950
840
96 350
76
110
412
340
192
76
45099
1015
1103
1087
191631
440
401
362
121
＞500
＞500
＞500
＞500
＞2000
＞1000
＞2000

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Installation Instructions
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b. Capacity Level and Capacity Code of the Indoor and Outdoor Units
Table 2
Capacity Level Capacity Code
Indoor Unit
09 25
12 35
18 50
21 60
24 71
Outdoor Unit
36 100
42 120
1) The outdoor unit with capacity level 36 can drive up to four sets of indoor units, while the outdoor unit
42 can drive up to ve.
2) The sum of the capacity codes of the indoor units should be among 50%-150% of that of the outdoor
unit.
c. Allowable Length and Height Fall of the Refrigerant Pipe
Table 3
Allowable Length Refrigerant Pipe
36 42 36 42
Total Length(m) 70 80 L1+L2+L3+ L4L1+L2+L3+ L4+ L5
Max. Length for Single Unit(m) 20 25 LX
Max.
installation
altitude
Outdoor unit
and indoor unit 15 15 H1
Indoor unit and
indoor unit 7.5 7.5 H2
Table 4: Dimension of the Refrigerant Pipe of the Indoor Unit unit：mm
Capacity Level of the Indoor Unit Gas Pipe Liquid Pipe
09,12 φ9.52 φ6.35
18 φ12.7 φ6.35
21,24 φ15.9 φ9.52
d. Piping between the Indoor and Outdoor Units
1) Refer to Fig.6 for the moments of torque for tightening screws.
2) Let the are end of the copper pipe point at the screw and then tighten the screw by hand.
3) After that, tighten the screw by the torque wrench unit it clatters (as shown in Fig.6).
4) The bending degree of the pipe can not be too small; otherwise it will crack. And please use a pipe
bender to bend the pipe.
5) Wrap the exposed refrigerant pipe and the joints by sponge and then tighten them with the plastic tape.

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Installation Instructions
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Fig. 6
Table 5：Moments of Torque for Tightening Screws
Diameter Wall Thickness（mm）Moment of Torque
φ6.35mm ≥0.5 15-30(N·m)
φ9.52mm ≥0.71 30-40(N·m)
φ12.7mm ≥1 45-50(N·m)
φ15.9mm ≥1 60-65(N·m)
CUATION ！
① .
During the connection of the indoor unit and the refrigerant pipe, never pull any joints of the indoor
unit by force; otherwise the capillary pipe or other pipe may crack, which then would result in leakage.
② .
The refrigerant pipe should be supported by brackets, that is, don’t let the unit withstand the weight of
it.
CUATION ！
For the GMV multi VRF system, each pipe should be labeled to tell which system it belongs to avoid
mistaken inaccurate piping.
e. Installation of the Protection Layer of the Refrigerant Pipe
1) The refrigerant pipe should be insulated by the insulating material and plastic tape in order to prevent
condensing and leaking.
2) The joints of the indoor unit should be wrapped with the insulating material and no gas is allowed on
the joint of the indoor unit, as shown in Fig.7.
No gap
Fig.7
CUATION ！
After the pipe is protected well enough, never bend it to form a small angle; otherwise it would crack or
break.
f. Wrapping the pipe with tape
Pipe Flare Nut Pipe
Torque Wrench
Ordinary