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PRODUCT DESCRIPTION Continued 

 

Specifications Condensing Unit 

 

 

Compressor 

Condenser Coil(s) 

Condenser Fan(s) 

Refrigerant Connections O.D.* 

Weight 

 

 

 

Face 

 

Fins 

 

 

 

 

 

 

Hot Gas 

 

 

 

 

Nom 

Area  Rows  Per 

 

 

Total 

 

 

Hot Gas 

Reheat 

Unit 

Unit 

Model 

Type 

Tons 

Sq.Ft.  Deep  Inch  No.

HP 

CFM 

Suction

Liquid 

Bypass 

Ea. of 2 

Oper 

Ship 

RCA051 

S 3 

1/2 15.4 4  12 1 

1/2  4,000 7/8 

3/8  3/8 

3/8  265 

315

RCA061 

S 4 

1/2 15.4 4  12 1 

1/2  4,000 1 

1/8  3/8 

1/2 

3/8 

290  340

RCA071 

S 5 15.4 

12 

1/2 

4,000 

1 1/8 

3/8 

1/2 

1/2 

310 

360

RCA101 

S 7 

1/2 15.4 4  12 1 

4,000 1 1/8 

1/2 

5/8 

1/2 

525 

600

RCA141 

S 10 23.1 

4 12 

1  4,000 

3/8 1/2 

5/8 

1/2 

600 675

RCA171 

S 14 30.8 

4 12 

1  8,000 

3/8 5/8 

3/4 

1/2 

850 925

RCA201 

S 15 30.8 

3 12 

1  8,000 

5/8 5/8 

3/4 

1/2 

975 

1,070

RCA271 

S 24 30.8 

4 12 

1  8,000 

5/8 5/8 

3/4 

5/8  1,100 

1,200

RCA361 

T 27 70.0 

12 

1 16,000 

1/8 3/4 

3/4 

5/8 1,470 

1,600

Notes:

 S = Scroll      T = Tandem Scroll 

   *Optional Hot Gas Reheat is connection size for each of two connections. 

For recommended line size, see page 16. 
Contact factory for additional models not listed above. 

Table 2 

 
THE AIR HANDLING UNIT CONSISTS OF THE FOLLOWING COMPONENTS: 
 
Evaporator:

 The evaporator coil is aluminum plate-finned 

formed on multiple rows of seamless copper tubing 
arranged in a staggered tube configuration.  

Blower: 

A forward curved, Double wheel double inlet 

centrifugal blower is used for the indoor air. The blower 
wheel is mounted on a solid steel shaft supported by 
sealed ball bearings. The shaft is driven by adjustable belt 
drive sheaves connected to a 1725 rpm motor. The blower 
has sealed ball bearings that do not require lubrication. 

Blower Motor:

 The blower motor operates at 1725 rpm. 

The motor has sealed ball bearings that do not require 
lubrication. Motors through 3 horsepower are inherently 
protected (auto reset) and motors 5 horsepower and larger 
are externally protected (manual reset).

 

Control Kit: 

Shipped loose for field mounting next to the 

air handler; the control kit includes the blower motor 
contactor or starter. 

REFRIGERANT CIRCUIT COMPONENTS 

Thermostatic Expansion Valve: The expansion valve is 
adjustable and factory installed. Distributor tubes from the 
expansion valve meter the refrigerant evenly to the 
evaporator refrigerant circuits. 

Hot Gas Bypass Tee:

 Provided to facilitate piping of this 

circuit to the condensing unit. The hot gas bypass circuit is 
provided for capacity control by maintaining a constant 
suction pressure at the compressor.

 

 

Specifications Air Handler 

 

 

Coil 

Blower 

Cond. 

Filters 1" 

Weight 

 

 

Face 

 

Fins 

 

Motor H.P. 

Drain 

Metal Mesh 

Pounds 

Vertical  Horizontal  Area  Rows 

Per 

DWDI 

Std. 

Opt. 

Opt. 

 

Size 

 

 

Unit 

Unit 

Model 

Model 

Sq.Ft.  Deep  Inch 

Size 

“S” 

“M” 

“L” 

No. 

F.P.T. 

No. 

Size 

Oper. 

Ship 

VCA015  HCA051 

2.8 

12 

10 x 4 

1/2 

NA 

NA 

3/4 

20 x 25 

140 

170 

VCA071  HCA071 

4.5 

12 

10 x 4 

1/2 

NA 

NA 

3/4 

16 x 22 

210 

240 

VCA101  HCA101 

8.0 3  12 12 

12  1/2  3/4  NA 2  3/4 

16 

25 

400 

440 

 

 

     

     

 

 1 

20 

25   

 

VCA141  HCA141 

8.0 

12 

12 x 12 

1/2 

3/4 

3/4 

16 x 25 

460 

500 

 

 

     

     

 

 1 

20 

25   

 

VCA201  HCA201 

14.6 

12 

15 x 15 

3/4 

1 1/2 

1 1/4 

16 x 25 

780 

840 

VCA271  HCA271 

14.6 

12 

15 x 15 

1 1/2 

 

16 x 25 

800 

860 

VCA361  HCA361 

19.5 

12 

15 x 15 

1 1/2 

1 1/4 

20 x 24 

935 

995 

 

 

  

   

 

   

   

2 20 

30 

 

 

Table 3 

 

Содержание RCA051

Страница 1: ...3 11 4 RCA101 V HCA101 110 5 12 1 RCA141 V HCA141 142 3 11 5 RCA171 V HCA201 187 9 14 7 RCA201 V HCA201 217 0 14 6 RCA271 V HCA271 263 2 13 9 RCA361 V HCA361 311 6 13 3 RCA421 V HCA421 395 5 12 5 95...

Страница 2: ...s of the colors used Operational failure of this unit for any reason including but not limited to mechanical or electrical failure of devices internal or external to the unit loss of fuel such as natu...

Страница 3: ...rator at the air handling unit as possible The liquid line solenoid is factory installed on units with hot gas reheat Hot Gas Bypass Circuit Provided for capacity control by maintaining a constant suc...

Страница 4: ...rive sheaves connected to a 1725 rpm motor The blower has sealed ball bearings that do not require lubrication Blower Motor The blower motor operates at 1725 rpm The motor has sealed ball bearings tha...

Страница 5: ...lectric heater may be required Air Handler Model Heater kW Available V HCA051 1 9 V HCA071 1 12 V HCA141 1 25 V HCA201 5 39 V HCA271 5 50 V HCA361 10 60 Minimum 80 CFM per kW Table 4 UNIT LOCATION Con...

Страница 6: ...unit support at mounting location Install proper electrical power service and disconnect switch Provide drainage as necessary Maintain minimum clearance for airflow into and out of unit Inspection of...

Страница 7: ...1 030 0 5 1 090 0 6 1 160 0 7 1 500 680 0 3 780 0 3 870 0 4 960 0 5 1 040 0 6 1 100 0 7 1 100 650 0 2 770 0 3 860 0 3 940 0 4 1 020 0 5 1 090 0 6 1 160 0 6 VCA HCA 1 400 700 0 3 800 0 3 880 0 4 960 0...

Страница 8: ...8 DIMENSIONS...

Страница 9: ...9 DIMENSIONS Continued...

Страница 10: ...10 DIMENSIONS...

Страница 11: ...11 DIMENSIONS Continued...

Страница 12: ...LA MCA Max Fuse Size 208 230 1 60 4 4 6 15 208 230 3 60 2 0 3 15 460 3 60 1 0 2 15 1 2 380 415 3 50 1 5 2 15 208 230 1 60 5 4 7 15 208 230 3 60 2 8 4 15 460 3 60 1 4 2 15 3 4 380 415 3 50 2 1 3 15 208...

Страница 13: ...conjunction with the control for Hot Gas Reheat A remote system switch such as a timeclock or interlock may be used to energized the controls Once it is established that supply voltage is within the u...

Страница 14: ...14 TYPICAL FIELD WIRING DIAGRAM...

Страница 15: ...r handler is installed at a higher elevation than the compressor provide a vertical loop in the suction line adjacent to the air handler to a point at least to the top of the evaporator coil Do not in...

Страница 16: ...ic acid also decomposes the compressor lubrication oil causing sludge Great care should be exercised in keeping moisture out of the refrigeration system when installing tubing because an extremely sma...

Страница 17: ...17 FIELD WIRING DIAGRAM...

Страница 18: ...ove 70 75 degrees F Reduce the evaporator load lower entering airflow until the suction pressure lowers to the point at which bypass is desired 115 PSIG If the hot gas bypass was de energized to stop...

Страница 19: ...er is applied to the high pressure control and the adjustable time delay The time delay begins when power is applied to the timer After the time delay closes the circuit continues through the low pres...

Страница 20: ...er in a commercial split system New system must be evacuated as outlined on page 14 to remove air and non condensables in the system The liquid line drier will trap any moisture left in the system Sys...

Страница 21: ...d inlet clearances and for possible air re circulation Check high side equalized pressure reading with equivalent outdoor temperature Check calibration of switch Check discharge and liquid line pressu...

Страница 22: ...on of low ambient head pressure control Suction Pressure Too Low Refrigerant undercharge Blower running backwards Loose blower pulley or belts Defective or improperly adjusted expansion valve Dirty fi...

Страница 23: ...ilter Check superheat and adjust TXV check bulb Check compressor for proper operation See above high discharge pressure Check external static pressure Supply Air Temperature Too Low Airflow is too low...

Страница 24: ......

Страница 25: ...__________ WB _________ Design CFM ________________ Outdoor Air Inlet Temperature _____________ DB__________ WB _________ Outdoor Fan Discharge Air Temperature__________ DB ________ Suction Pressure _...

Страница 26: ...26 NOTES...

Страница 27: ...27 NOTES...

Страница 28: ...28...

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