Specifications

ManualsBrandsCarrier ManualsAir Compressor30HR

Installation, Start- Up 30HR-HS

And Service Instruction 040, 050, 060

Reciprocating Liquid Chillers

30HR-HS 040 Model C and 30HR-HS 050,060 Model B

INSTALLATION

LOCATION

Units should not be stored where exposed to the weather

because of the sensitive control mechanisms and electrical

devices. Locate unit indoors.

See Fig. 1 and Table 1 for door clearances and space

requirements. Provide clearances at one end for removal of

tubes (Fig. 1, callouts 7 and 8).

Floor must be strong enough to support to operating

weight. If necessary, add supporting structure (steel beams or

reinforced concrete slab) to floor to transfer weight to nearest

beam(s).

All units have spring vibration isolators and mufflers.

Interconnecting piping must be flexible enough to prevent

vibration transmission. If vibration still exists, use isolators on

unit itself. If unit is installed on upper floor where vibration

cannot be transmitted to ground, use field-purchased vibration

mountings under each mounting hole. Back off mounting lock

bolts to allow compressor to float freely: otherwise, excessive

vibration will result.

Move unit on its skid to final location. If using chain hoist,

use a spreader bar so that control boxes will not be damaged

by sling. Place sling under skid. Do not attach sling to piping

or component. Move unit in upright position: lower gently

from truck or rollers. Use enough pipes to support skid when

rolling.

Figure 1 shows location mounting holes. Areas where

corners will be located must be level before unit is placed.

Level unit with spirit level on frame channels. Bolt unit to

floor (recommended for basement or ground floor installations

that transmit vibration to ground without affecting building

structure).

See Table 2 for weight distribution.

CONDENSER

Run water supply lines as short as possible. Size lines

according to head pressure available (not necessarily

connection size), especially on cooling tower application. See

system Design Manual, Part 3, Piping Design.

For installation requiring a water regulating valve, a

separate valve is required (not supplied by carrier) for each

refrigerant circuit. Water regulating valve must be installed on

cooling tower application where low outdoor ambient affect

head pressure.

The 30HS unit using air-cooled or evaporative condensers

should have adequate means for head pressure control when

operating below 60 F outdoors ambient.

Accessory steel manifold packages for inlet and outlet

condenser water are available for 30HR units. Each manifold

is furnished in two sections, to be field welded as shown in

Fig. 1 Manifolds should not be used where regulating valves

are required because separate valves must be used on each

condenser circuit.

Set water-regulating valve to maintain design head

pressure. Do not adjust to compensate for high head pressures

caused by fouled condenser tubes, excess refrigerant or the

presence of non-condensable. Due to changes in water

temperature, it may be necessary to adjust the valve

seasonally, After adjusting for design head pressure, shut unit

down. Water regulating valve should shut off flow of water in

a few minutes. If it does not, it will be necessary to raise the

head pressure setting. Make sure that capillary tube from each

water-regulating valve is connected to the proper condenser

purge valve.

Condenser water must enter at bottom for proper operation

of the internal sub cooler in the bottom of the condenser (Fig. 1).

CAUTION: Retighten all condenser head bolts before filling

system with water.

Discharge pipe from high side pressure relief valve (HR units)

must not be smaller than valve size. HS units require field-

installed high side pressure relief valve near condenser in each

refrigerant circuit. Most local codes require piping from valve

to outdoors.

Water leaving condenser is under pressure and should not

be connected directly into sewer lines. Check local codes. A

3/8-in. drain plug is located at each end of each condenser.

NOTE: provide means for draining system in winter and for

repairs.

Two check valves and two pressure relief valves are

shipped loose with each condenser less (HS) unit as

standard equipment, Install one of each in the discharge

line of each refrigerant circuit, downstream of the hot gas

muffler. Locate the relief valve close to remote condenser.

There must be no shutoff device between relief valve and

condenser; Installation of these valves must be in

compliance with all applicable codes

Summary of content (12 pages)

PAGE 1
Installation, Start- Up And Service Instruction 30HR-HS 040, 050, 060 Reciprocating Liquid Chillers 30HR-HS 040 Model C and 30HR-HS 050,060 Model B INSTALLATION LOCATION Accessory steel manifold packages for inlet and outlet condenser water are available for 30HR units. Each manifold is furnished in two sections, to be field welded as shown in Fig. 1 Manifolds should not be used where regulating valves are required because separate valves must be used on each condenser circuit.
PAGE 2
Do not attempt to repair or recondition any safety devices when corrosion or build-up of foreign material (rust, dirt, scale, etc.) is found within the valve body or mechanism. If necessary, replace the device. Do not install safety valves in series or backwards. Repair safety consideration The personnel in charge must maintain all installation parts, in order to avoid material deterioration and injuries to people. Faults and leaks must be repaired immediately.
PAGE 3
15 N M L MTG HOLE C L P REFRIG INLET REFRIG DISCHARGE 17 K 1'-6 1 4 " CL 1'-7" CL 2'-1 5 8" MTG HOLES 16 30HS TOP VIEW 30 30HS END VIEW MTG HOLE 8 3 1'-3 4 " BOTH ENDS 27 28 29 6'-5 3 4 " 5 J 9 10 3 4 " DIAM 18 CL CONDENSER 10" 2'-6 3 4 " 1'-5" H 1'-0 3 16 " CL 3'-0" MTG HOLES 1'-1 1 4 " 10 F 13 12 7 30HR TOP VIEW 11 30 4'-1 1 2 " START BUTTON STOP BUTTON 21 G 1'-1 3 8" 30HR END VIEW 9'-0 3 8" 23 22 26 25 6 WATER OUT WATER IN CONTROL PANEL 20 FIELD WELDED 2'
PAGE 4
Table 1-PHYSICAL DATA HR040 Table 2-WEIGHT DISTRIBUTION HS040 HR050 HS050 HR060 HS060 UNIT 30 UNIT 30 DIM. (Ft-in)* (Refer A 7– 6 To B 1– 5 Fig.
PAGE 5
Recharging liquid refrigerant NOTE: Use only oils, which have been approved for the compressors. Never use oils, which have been exposed to air. CAUTION:HR units are charged with liquid R22 refrigerant. NOTE: Regularly carry out leak checks and immediately repair any leak found.
PAGE 6
START-UP AND SERVICE INITIAL CHECK Crankcase heaters should be energized at all times when unit is not in operation. On 50-Hz units. Each heater is 180 watts, 240 volts. Never open any switch that will de-energize crankcase heaters unless unit is being serviced or shut down for a prolonged period. These switches include the unit field power supply switch (unless control circuit power is from separate source) and the control circuit switch or breaker.
PAGE 7
Table 5-PRESSURE SWITCH SPECIFICATIONS CUTOUT CUTIN UNIT30 Psig Kpa Psig Kpa 42±3 290±21 57±5 393±34 Low Pressure CUTOUT CUTIN High Pressure Psig Kpa Psig Kpa 280±10 1931±69 180±20 1241±138 HR 375±10 2585±69 275±20 1896±138 HS MOISTURE-LIQUID INDICATOR Clear flow of liquid refrigerant indicates sufficient charge in system. Bubbles indicate under-charged system or presence of non-condensable. Moisture, measured in parts per million (PPM), in system will change color of indicator.
PAGE 8
Table 6-CAPACITY CONTROL CONTR STEPS UNIT 30HR 30HS 1 2 3 4 1 2 3 4 1 2 3 4 040 050 060 LLSV (= Open) OPERATION TRANS SW* POS1 Oper Cyl % Ck t Cap Total 1 2 TRANS SW* POS2 Oper Cyl % Ck t Cap 1 2 40 60 80 100 33 66 83 100 - 20 60 80 100 33 66 83 100 - 4 6 8 10 4 8 10 12 - 4 4 6 6 4 4 6 6     Sequence of Control-Power is supplied to Control circuit either from a separate source or thru a field-installed transformer (accessory package) with primary connected to unit power terminal block (ins
PAGE 9
CAPACITY CONTROL SYSTEM Capacity Control Electric – Electrically operated control valve is actuated by remote signal to the electric solenoid coil, which has the same voltage as the unit control voltage, No manual adjustments to the electric unloaded valve are necessary. When the solenoid is "de-energized", the passageways in the valve are aligned for "loaded" Conditions. When the solenoid is " energized" the valve passageways are aligned for unloading.
PAGE 10
Servicing 30HR Units-If it is necessary to open both main power circuit breakers, first turn the control circuit STARTSTOP switch to "Stop". MOTOR WINDING THERMAL PROTECTOR OR HIGH-PRESSURE SWITCH – Turn START-STOP Switch to "Stop", then to "Start". Entire unit stops; restart is under timer control. LOW-PRESSURE SWITCH-Automatic restart when pressure rises to cut-in point. OIL PRESSURE SAFETY SWITCH-Manually depresses reset button devices and turn START-STOP switch to "Stop" and then to "Start".
PAGE 11
TROUBLESHOOTING (Cont) PROBABLE CAUSE Symptoms Compressor Loses oil Leak in system Plugged or stuck compressor snifter valve Oil trapped in line Frosted or sweating suction line Hot liquid line Frosted liquid line Compressor will Not unload Compressor not load High suction will Crankcase heaters not energized during shutdown Expansion valve admitting excess refrigerant Shortage of refrigerant due to leak Expansion valve opens too wide Receiver shut off valve partially closed or restricted Restrict
PAGE 12
‫‪Sanaye Sarma Afarin Iran‬‬ ‫ﺷﺮﮐﺖ ﺻﻨﺎﯾﻊ ﺳﺮﻣﺎ آﻓﺮﯾﻦ اﯾﺮان‬ ‫)ﮐﺮﯾﺮﺗﺮﻣﻮﻓﺮﯾﮏ(‬ ‫‪NO.194, W.Khorramshahr(Apadana)Ave.,TEHRAN-15337,P.O.