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10 

It is essential that the sensors are correctly located to ensure efficient system performance. 

The 3

rd

 Party Dx-Coil should be supplied with a Gas Header and Liquid Capillary Distributor (see below).

Installer must procure the extension field wire compliant to NFPA/NEC for local cables to connect temperature sensor and to 
connect the terminal block as necessary. 

Install the temperature sensor wire in an orientation such that gravity will not cause moisture to accumulate on the sensor 

or penetrate the conductor insulation.

•Make 

good 

connection 

between temperature sensor and Dx-coil. Put the top of the thermistors 

on the Dx-Coil,

 

this is the most sensitive point of the sensor.

1.

Most sensitive part of the sensor

2.

Maximize the contact with pipe

TC1

 Sensor Ø4  

(Small Sensor Holder). 
Gas Header Pipe. 

Avoid positioning Sensor 
holders in the Drain Pan where 
they could be immersed in 
water. 

TCJ

 Sensor Ø6  

(Large Sensor Holder). 

This should be brazed to the 
capillary on the lowest circuit 
(2inch ± 1inch from end plate). 

TC2

 Sensor Ø6  

(Large Sensor Holder). 

This should be brazed to the 
pipe between PMV and 
distributor. 

Summary of Contents for Carrier RBM-A0121GUL

Page 1: ... RBM A0121GUL RBM A0301GUL RBM A0601GUL RBM A0961GUL RBM A1921GUL Dx PMV kit 012type Dx PMV kit 030type Dx PMV kit 060type Dx PMV kit 096type Dx PMV kit 192type Dx Interface Dx PMV kit Installation manual ENGLISH ...

Page 2: ... NEW REFRIGERANT This Air Conditioner is a new type which adopts a new refrigerant HFC R410A instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer This appliance is for commercial use only and should not be accessible to the general public This appliance is not intended for use by person including children with reduced physical sensory or mental capabilitie...

Page 3: ...wise it may cause imperfect combustion Installation Install the air conditioner securely in a location where the base can sustain the weight adequately If the strength is not enough the unit may fall down and result in injury Carry out the specified installation work to guard against the possibility of high winds and earthquake If the air conditioner is not installed appropriately a unit may toppl...

Page 4: ...of the installation work check for refrigerant leaks and check the insulation resistance and water drainage Then conduct a test run to check that the air conditioner is operating properly Explanations given to user Upon completion of the installation work tell the user where the circuit breaker is located If the user does not know where the circuit breaker is he or she will not be able to turn it ...

Page 5: ...Control wiring Field installed Temperature sensor wiring SPECIFICATION 1 Install in the place avoiding direct sunlight and rain Model name RBM A 0121UL 0301GUL 0601GUL 0961GUL 1921GUL Capacity Code 012 015 018 021 024 030 036 042 048 060 072 096 168 192 Ton 1 1 25 1 5 1 75 2 2 5 3 3 5 4 5 6 8 14 16 Maximum capacity kBtu h 12 15 4 18 21 24 30 36 42 48 60 72 96 168 192 Power supply requirements Powe...

Page 6: ...4 sizes Model Name Weight lbs Dimension inch Net Gross W1 W2 H D RBM A0121GUL RBM A0301GUL RBM A0601GUL RBM A0961GUL RBM A1921GUL 6 0 6 5 8 4 9 8 15 7 3 2 4 PART DESCRIPTION No Parts name Quantity 1 Cover box 1 2 Base box 1 3 Bracket 1 4 Terminal box 1 5 Cable Gland 3 6 Insulator tube 1 7 PMV Assembly PMV Strainer Pipe 1 8 Support tie wrap 1 9 Pipe cap 2 ...

Page 7: ...n Remove the pipe cap Prepare the inlet outlet field piping just in front of the connection Do not braze yet If connecting capacity is 015 or 018 type using RBM A301GUL be sure to use the reducer pipe for both brazing Connecting pipe size is 1 4 for 015 and 018 type Capacity Pipe size 012 018 1 4 021 060 3 8 072 096 1 2 168 192 5 8 Model name RBM A 0121UL 0301GUL 0601GUL 0961GUL 1921GUL Capacity C...

Page 8: ...rk to prevent internal oxidization C Prevent cooling water from getting inside the PMV valve and connector of the lead during brazing D Take care not to damage the PMV cables during brazing E The leakage test is executed by pressurizing nitrogen gas up to 601 psi 4 15MPa The test must be done with the service valve of the outdoor unit closed and the gas must be pressurized at the liquid pipe gas p...

Page 9: ...wiring RBM A1681GUL 5 wiring Use the screwdriver and follow indicated instructions for connecting cable wires into the terminal connector according to the circuit diagram Make sure that field wiring and insulation is not pinched when closing the Dx PMV kit cover box Close the Dx PMV kit cover box by 4 screw Terminal number Colour RBM A0121GUL A0301GUL A0601GUL A0961GUL RBM A1921GUL PMV1 PMV2 L01 L...

Page 10: ...ote Temperature sensor is packed in Dx Controller TCB IFDA1GUL TCB IFDD1GUL TC1 Ø4mm Sleeve colour Blue Install the temperature sensor at the outlet of the heat exchanger as close as possible to the heat exchanger TC2 Ø6mm Sleeve colour Black Install the temperature sensor between the distributor and PMV TCJ Ø6mm Sleeve colour Red Install the temperature sensor hehind of the distributor on the low...

Page 11: ...oisture to accumulate on the sensor or penetrate the conductor insulation Make a good connection between temperature sensor and Dx coil Put the top of the thermistors on the Dx Coil this is the most sensitive point of the sensor 1 Most sensitive part of the sensor 2 Maximize the contact with pipe TC1 Sensor Ø4 Small Sensor Holder Gas Header Pipe Avoid positioning Sensor holders in the Drain Pan wh...

Page 12: ...11 160003R04 UL Rev 2 Carrier Corporation Carrier Ductless and VRF Atlanta Georgia United States ...

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