Mitsubishi Electronics PUHY-YMC Wiring transmission cables, Connecting a transmission booster

Page 27

11.3. Wiring transmission cables

Wiring method, address setting method and permissible wiring length differ according to and whether or not you are using transmission booster. Check permissible wiring length before wiring.

A may be required depending on the number of indoor units. Item 4 “Wiring examples” gives typical wiring examples (a-c).

a.System using remote controller (1 outdoor unit)

b.System using remote controller (system operated as a group among multiple refrigerant systems)

c.System using power supply extension unit for transmission booster (combination of systems a-b)

1Connecting a transmission booster

A transmission booster (RP) is required when the number of connected indoor unit models in a cooling system exceeds the number of models specified in the chart below.

* The maximum number of units that can be controlled is determined by the indoor unit model, the type of remote controller and their capabilities.

 

Remote controller type

Remote controller PAR-F 25MA

(*1)

 

 

 

Capability of the

Number of connected indoor units that can be

Prior to Ver. E

After Ver. F

connected indoor units

connected without a RP.

 

 

 

200 or lower

16 (32)

20 (40)

 

200 or higher

16 (32)

16 (32)

The number of indoor units and the total number of remote controllers is displayed within the parenthesis ( ).

*1 If even one unit that is higher than 200 exists in the cooling system, the maximum capacity will be “200 or higher”.

2Name, code and possible unit connections

 

Name

Code

Possible unit connections

Outdoor unit

Variable capacity unit controller

OC

–

Constant capacity unit controller

OS

1 unit per 1 OC.

 

Indoor unit

Indoor unit controller

IC

2 to 32 units per 1 OC (*1).

Remote controller

Remote controller (*1)

RC

2 units maximum per group.

Other

Transmission booster unit

RP

0 to 1 unit per 1 OC (*1).

*1 A transmission booster (RP) may be required depending on the number of connected indoor unit controllers.

3Types of control cables

(1) Wiring transmission cables

•Types of transmission cables Shielding wire CVVS or CPEVS

•Cable diameter More than 1.25 mm2

•Maximum wiring length within 200 m

(2) Remote control cables

Kind of remote control cable

2-core cable (unshielded)

Cable diameter

0.5 to 0.75 mm2

Remarks

When 10 m is exceeded, use cable with the same

specifications as (1) Transmission line wiring.

 

4Wiring examples

Typical wiring examples are shown on pages 28 to 32. (Wiring examples A ~ C)

ENGLISH

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Contents PUHY-YMC Contents Safety precautions Before installation and electric workBefore getting installed Before starting the test run Before getting installed moved electrical workConfirmation of parts attached Combination with indoor unitsVariable capacity unit Constant capacity unit Outdoor unit configurationSelection of installation site Model Name Connecting pipe Elbow ShapeSpace required around unit Individual installationWhen inlet air enters from right and left sides of unit When there is an obstruction above the unitLifting method and weight of product Collective installation and continu- ous installationBe very careful to carry product Location of anchor bolt Installation of unitInstallation Example of collective installationNoise level Connecting direction for refrigerant pipingDown piping and down wiring precautions 60/61 dB A-weightedPUHN-200/250YMC Snow and seasonal windCountermeasure to seasonal wind PUHY-400/500YMCRefrigerant piping installation Areas of cautionNever perform a pump down. This will damage the compressor + α Refrigerant piping systemMultiple line/header For variable capacity unit Precautions concerning piping connection and valve operationFigure shows valve fully open Gas side Liquid side Oil balance side60 to 50 to 57.5 / 500 to75 to 750 to 100 to 1000 to Tightening angle standard Pipe diameter mmOil balance pipe connection method Part could be damaged if not cooled sufficiently Distributor gas connection methodGram below How to install branch pipeJoint Restrictions on the posture for attaching jointsAirtight test and evacuation Airtight testEvacuation Thermal insulation of refrigerant piping No heat insulation must be provided for electric wiresInner wall concealed Floor fireproofing PenetrationsElectrical work Control box and connecting posi- tion of wiring Variable capacity unitConstant capacity unit Transmission booster optional For details, see item 11.3. Wiring transmission cablesPlate HoleName, code and possible unit connections Wiring transmission cablesConnecting a transmission booster Wiring examplesWithin Address Unit Remote control operation Same as above Wiring method, address settingRemote control RC terminal block TB6 One remote control unit for each indoor unitFor details, see wire connection example C Main remote controller Wiring LineSame group to the remote control RC terminal block TB6 Unit Range Setting methodExtended length and the length to the most remote unit Wiring Booster RPCapability Number of connected indoor units that can be Wiring of main power supply and equipment capacity Test run method Operation procedureTest run Checking before getting test runAbnormality How to cope with test run abnormalityFlag 8 always lights 6603 Transmission error Transmission route Busy ErrorPower on Display at LED lighting blinking Remarks Flag Relay outputCoping with remote controller abnormality Following phenomena do not represent abnormality emergency NMK Nkok NknkNkqk NKPK#$%&*+#$%&*+#,%&- ./0123145&6789#$%&=?@. !# Sknk #$% +,-.Ü SkokUknk TK=Ukok Ukpk Ukqk Vkok Nmknk = NMK=$%&*+,-./01 NMKOK=#$%&*+QMã NMKPK=L Ãã ! k·ãLâÖJÅã NMKQK=#$%&#*#%+, -. !*# NMKRK= NMKSK= #$%& *+& 012345678 .#$%&*+,-./0 1$%#234 NNKNK= NNK=NNKOK= Rsrv NNKPK=#$% +,-./012 NRO #$% +,-./0/12`kQN =EqRF= !# $%&*+ Vwt NNKQK=NOKOK= NOKNK=NOKPK= EptNF EibaF NOKQK= `ççäáåÖ EÉ~íáåÖ NokrkNMK Nknk Nkqk #$%&!*+ Sknk Skok TK= Ukok Ukpk Ukqk Vkok NMK= NMKOK= #$%&*+QMã NMKPK=L NMKQK= #$%&#*#%+, -. !*# NMKRK= NMKSK= #$%& *+& 012345678 .#$%&*+,-./0 1$%#234 NNK= NNKOK= NNKPK= #$% +,-./012 NRO #$#%&* +,-./0123456 =EqRF= !# $%&*+ NNKQK= NOK= NOKPK= EptNF EibaF NOKQK= Nokrk WT02922X02
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