Carrier 06E User Manual

Compressors and Condensing Units

Hermetic, Water-Cooled

PRELIMINARY CHECKS

Inspect shipment for damage. File claim with the shipping company if shipment is damaged or parts are missing.

Local water conditions can cause excessive fouling or pitting of condenser tubes. If such conditions are anticipated, a water treatment analysis is recommended. Refer to Carrier System Design Manual, Part 5, for general water condi tioning information.

PLACING THE UNIT

Locate unit on floor in a well ventilated area. Install unit where it will be warmer than condi tioned area. Position it to allow sufficient space for refrigerant and water connections and to seiwice compressor. Allow space at one end of condenser

for tube cleaning or replacement. Place unit so suction and discharge valves can be easily reached and so oil level can be checked.

Make provision in piping layout to drain and vent condenser if system is to be shut down in

winter.

Level unit and bolt it firmly to foundation.

COMPRESSOR

Remove 4 self-locking bolts from compressor

mounting springs, and reassemble them with

flanged washers and neoprene snubbers as shown in Fig. 1. Flanged washers and neoprene snubbers are shipped in a cloth bag tied to compressor. Tighten

all 4 bolts. Then, loosen each until the flanged washer can be moved sidewise. Check compressor

to see that it floats freely on its mounting springs.»

PIPING CONNECTIONS

Attach water supply and return line to con nections indicated on condensing unit (Fig. 3). Water leaving condenser should not be connected

directly into sewer lines; check local codes.

Attach refrigerant liquid and suction lines to

condensing unit (Fig 3),suction and discharge lines

to compressor unit (Fig. 2) Discharge line muffler

and check valve are factory supplied with 06E com pressor units Install the muffler as close to shutoff valve as possible and install the check valve in the

discharge line close to the muffler, on the down

stream side. When soldering or brazing piping to valves, disassemble the valve or wrap it in wet cloth

to prevent damage by heat Allow flexibility in

Table 1 — Physical Data

COMPRESSOR UNIT 06E

1V022JW027

1 6ÔÔ i 640

CONDENSING UNIT 07E OPERATING WEIGHT (Tb) REFRIGERANT COMPRESSOR 66E (06EV,EW)

(07EA,EB,ED):Di50i N265 i N i /5 i N299

Oil Charge, PP33-2(pt) 14 | i9 1 19 I 19 Normal Oil Pressure* Oil Safety Switch Cut-in

High-Pressure Switch

Cutout Range

A022 :3027 ;B033Jp044_

l235{TM0'[T356JT56b '

D2.50 Ie265 Ie275 Ie?99^

Cutout

2 to 5 psi below cut-

300 to 400 psigt

W033

''650^^

R-22, R-502'

13 to 18 psig

9 to 13 psig

W044

320 pspt,

Differential (cutout,

Factory Settings!

cut-in)

Cutout

95 ± 1 5 psi ifixed)

335 ± 6 psig

260 i 6 psig

Cut-In

Low-Pressure Switch

Cutout Range Differential (cutout, cut-in) Factory Settings! Cutout

Low-Side Max Pressure

CONDENSER 69RE

Refrigerant 22

Max Storage Capacity (lb)** Min Operating Charge (lb)

Max Operating Pressure

Refrig erant Side Water Side

. 07E Condensing Unit Data

'Listed pressuies are above operating suction pressure (pressure

diffeieniial between suction and discharge pressures of oil pump)

fAdjustable, but only by authorized personnel and with special

tool

:j Listed settings for R-22 For other refrigerants, reset to

pressures corresponding to saturation temperatures indicated by the listed pressures

**Condenser 80% filled with liquid refrigerant at 104 F

Cut-in

240 t 7 ps:<3

175 3 7'ps>3‘ ■■■

5 to 1 00 psig (adj )

22 ± 8 psi (fixed)

24+4 psig

66 ± 4 psig 245 psig

022

027

139 f

“j'y i

385 PC.Î9

250 psig

043

Î95

Fig. 1 — Compressor Mounting

670

1276

Form 06E, 07E-5SI

L ODF SUCTION VALVE (MAY BE ROTATED 360° AT 90° INTERVALS)

*1 nstall pressure relief device in discharge line

Pressure relief setting is 465 psig

tOverall width includes projection of fuse

holders

M ODF* DISCHARGE VALVE (MAY BE ROTATED 180°

'A~

OVERALL LENGTH (INCLUDES CONTROL BOX OVERHANG)

DIAM KNOCKOUT

DIAM-4 HOLES

06E Hermetic Compressor Unit Dimensions

UNIT 06E mMENMONS A CONNECT Tons On ) u

V022

3-1 1 %

IV«

2-31| OVERALL HEIGHT

W027

3-1IV«

iVa“' IV,

4~VVu

2v; '

iVa

JW0j44_

" 2Va ”■

1 Vs

Fig. 2 —06E Hermetic Compressor Units

UNIT 07E DIMENSIONS (fi

Overall Width

Certified dimension drawings available on request.

A022

6- 5 6- 5 6- 5

C 2-1 IV 3- 0

l-nVs

§027

1 -1 1V 1-1IV

07E Water-Cooled Condensing Unit Dimensions

§033

0044 _UNJT 07E^

6-7V CONNECTIONS (ii

2-1 1V2

3-2 Vs 2-3 Vs

Fig. 3 — 07E Water-Cooled Condensing Units

A022

K iVs IVs L iVs IV« U

B027 B033

2V 2V

0044

2Vs

IVs iVs

Table 2 — Electrical Data (60-Hertz, 3-Phase)

(Circuit Breakers Selected for Units Using R-22)

VOLTS

UNIT

Compr

06 E W033

Cond

07 E B033

VOLTS

UNIT

Compr

06 E

Cond B027

07 E

KW — Maximum Power Input

LRA — Locked Rotor Amps MTA — Must Trip Amps MWA — Minimum Wire Amps Complies with NEC Section

RLA — Rated Load Amps Supply Range — Units are suitable for use on electrical systems

NOTES: 1 Control voltage is 115 v for all units

Nomina 1

Supply Range

V022 W027

W044

A022 B027

D044 Nominal Supply Range

V022 24.8 36 W027 W033 W044

A022 22.6 32

B033 34.0 48 205 66

D044

24.8

33.6 103

37.6

55.1

22.6

31.4

34.0

50.4

KW RLA LRA

33.6

37.6

55.1 76

31.4 43 205

50.4

430-22

where voltage supplied to the unit terminals is not below or above the listed range limits

RLA

1 14

164

72 283

96 107 471 150 159 690 222

70 300

LRA

345 471 144 129 506 160 690

471 134 120 200

150 205 63 56 100 220 71 300

123 45

200

180-229

MTA

114

230 100

460 575 (See Note 5)

414-528

MTA

106

MWA FUSE

102 143

206 350

134 198 350 140

MWA

60 98 88

45 64

95 40 70 27

54 90 60 100 39 164 54

MÀX

AMPS

175 225 250

150 225 96

MAX MAX FUSE

AMPS

150 60 240

150 60 240 84

2 Part-winding start all 200-, 230-volt 06E and 07E units; 460-,

575-volt 06EW044 and 07ED044 units Across-the-line start: all 460-, 575-volt units except 06EW044

and 07ED044.

3. Factory wiring is in compliance with National Electrical Code (NEC) Field wiring must comply with NEC and applicable local codes Maximum incoming wire size to control center terminal block is 250 MCM

4 The 06E compressor unit electrical data shown in the table

does not apply to 06E compressors used as an integral part of other Carrier equipment Refer to the electrical data for the particular application

-> 5 Units for use on 575 volts are available on special order

RLA

92 103 440 144 150 600

85 410 118 106

RLA

29 120 40 37 60 36 164 50 45 80 42

LRA MTA MWA

300 410

r 246

410 600

LRA MTA MWA

176

164

230

207-264

104

128 115 210

134 196

518-660

58 53 90 84 75

37 34 45

129 225 188

120 175

MAX FUSE AMPS

79 125

48 75

150 200

300

175 200 300

FUSE AMPS

125

60 70 80

125

(Continued from page 1.)

suction line so compressor suction valve may be moved aside for access to suction strainer.

A solenoid valve is necessary for single pump

out control used on 06E and 07E units. Install the

valve (field supplied) in the liquid line, just before

the expansion valve. A filter-drier of adequate size should be installed in liquid line between con denser and solenoid valve.

Pressure relief valve located on side of con denser will open to relieve excessive pressure, allowing refrigerant to escape. Most local codes require piping from valve to outdoors.

Refer to Carrier System Design Manual for

standard piping techniques.

ELECTRICAL REQUIREMENTS

Eield wiring must comply with local and

national codes. See Table 2.

Install a branch circuit fused disconnect of adequate size to handle starting current. The disconnect must be within sight of the unit and readily accessible, in compliance with National Electrical Code (NEC), Section 440—14.

Line power is brought into control center thru indicated opening. Connect line power supply to

terminal block TB1; connect power leads to terminals LI, L2 and L3. Connect control circuit power supply (115 volts) to terminals 1 and 15 on terminal block TB2. Refer to Eig. 4.

Wiring connections for field-supplied equip ment are shown on diagram attached to unit (or in wiring diagram booklet).

Discharge line limit thermostat supplied with

06EV,W compressor units is installed on discharge

line as close to compressor as possible.

1. Place mounting plate on discharge line and solder in place.

Easten the thermostat to plate with screws

supplied. Cover switch with insulation and secure insula

3. tion at each end with straps.

Connect thermostat in series with Ml and M2

4. overloads, between terminals 2 and 4 on termi nal block TB2.

ACCESSORIES

PACKAGE NUMBER

07EA900021 07EA900061

DESCRIPTION

Control Circuit Transformer Gage Panel

1276

REFRIGERANT CHARGING

Evacuate, Dehydrate and Leak Test the entire

refrigerant system by methods described in Carrier Standard Service Techniques Manual, Chapter 1, Sections 1-6 and 1-7. Use sight glass method to charge system. See Section 1-8 of Service Tech niques Manual for details.

CHARGE THE SYSTEM to a clear sight glass while holding saturated condensing pressure constant at

125 F (air-cooled systems) or 105 F (water-cooled systems) Add additional refrigerant to fill con denser subcooler coils.

07E Condensing Units - After clear sight glass is obtained, add charge until liquid refrigerant reaches condenser liquid level test cock.

06E Compressor Units — See condenser data for additional charge required to fill subcooler.

All Units — Stamp type of refrigerant and amount

of charge on unit informative plate

INITIAL START-UP

Crankcase heater should be energized a mini

mum of 24 hours before starting unit.

Check to see that oil level is approximately 1/3

up on the compressor sight glass.

Open water supply valve and allow water to reach condenser. (Turn condenser fan on when the compressor unit is applied with air-cooled con denser.)

Backseat the compressor suction and discharge shutoff valves, open liquid line valve at receiver.

Start evaporator fan or chilled water pump.

Start Compressor — Push the control circuit

START-STOP-RESET switch to “Start.” The timer motor starts immediately. Depending on the posi tion of the timer, the compressor start is delayed for 12 seconds to approximately 8 minutes. Check oil pressure after compressor has run a few minutes, the pressure should be 12—18 psi above the suction pressure After about 20 minutes of operation, stop the compressor. Allow it to be idle for about 5 minutes, then observe the oil level in the sight glass. If the oil level is below the bottom of the sight glass, refer to the Carrier Standard Service Techniques Manual, Chapter 1, Section

1-11, for adding oil. The proper oil level for the 06E compressor is approximately 1/3 up on sight glass.

là

CONTROL POWER TERMINAL STRIP (TBg)

GROUND SCREW

START-STOP-RESET SWITCH

CONTROL CIRCUIT FUSE(S)

(2 ON 50-Hz UNITS)

CONTROL RELAYS SENSOR MODULE

(SOLID STATE COMPRESSOR MOTOR

PROTECTION)

HIGH PRESSURE SWITCH

LOW PRESSURE SWITCH

TIMER MOTOR (4-FUNCTION TIMER)

MAIN POWER INLET,

MAIN POWER TERMINAL BLOCK (TB|)

EQUIPMENT GROUND

'connection

COMPRESSOR CONTACTOR

OUTLET FOR WIRING TO COMPRESSOR 06E

07E

OIL PRESSURE SAFETY SWITCH

1276

ACCESSORY TRANSFORMER (60-Hz UNITS ONLY)

MAIN POWER CIRCUIT BREAKER

Fig. 4 — Control Center — 06E and 07E

COMPRESSOR CONTACTOR (PART-WIND)

Timer Functions (See Fig. 5 — Tinier Cycle)

1. Switch A (contacts A-Al and A-A2) provides Time Guard® function. Start of compressor is

delayed approximately 5.5 minutes after shut off. The minimum time between starts of compressor is 8 minutes.

2. Switch B (contacts B1 and B—B2) starts compressor and de-energizes the crankcase

heater. These contacts also provide one-second

time delay for part-winding start.

3. Switch E (contacts E—El) provides approxi

mately 40-second bypass of oil-pressure switch (OPS) at start-up. Compressor will shut off if sufficient oil pressure does not build up.

4. Switch D (contacts D—Dl) bypasses the lowpressure switch (EPS) for 2.5 minutes at start up for winter start control.

(BLACK DENOTES CLOSED CONTACTS)

0 MIN OR

8 MIN

»TT?*

-'E-El-

-xA-

High-Pressure Switch — Check by throttling con

40 SEC +5

2-6 SEC

---

150 SEC

Fig. 5 — Timer Cycle

PROTECTION DEVICES

TIMER POSITION DURING

UNIT OPERATION-

denser water or blocking air flow on air-cooled units, allowing head pressure to rise gradually. Check discharge pressure constantly throughout procedure. Compressor should shut off within 10 psi of values shown in Table 1.

Low-Pressure Switch — Check by slowly closing

suction shutoff valve or by completely closing liquid line shutoff valve. A decrease of suction pressure will follow. Compressor should shut off within 4 psi of values shown in Table 1.

Oil Pressure Switch (OPS) protects against damage

from loss of oil and failure of pressure buildup during start-up. Switch time delay (approximately 35 seconds) is derived from being properly wired to the ambient and voltage insensitive Time Guard timer. If OPS locks out unit, det e rm ine an d c o r r e c t

th e c a u s e (such as loss of compressor oil or flooded

compressor) be f o r e r e s ta r t in g uni t Restart by pushing the control circuit switch on unit control box to “Stop” then to “Reset.” Failure to correct

the cause of the OPS lockout will constitute abuse.

Eq ui p m e n t f a il u r e d u e to a b u s e i s n o t c o v e re d by th e Warr a n t y .

Time Guard Control protects compressor against

short cycling. See Start Compressor.

Crankcase Heater prevents absorption of liquid

refrigerant by oil in crankcase during brief or extended shutdown periods. Source of 115-volt power is the auxiliary control power, independent of the main unit power. This assures compressor protection even when main unit power disconnect switch is off.

N ev e r o p e n any s w it c h o r d i sc o n ne c t t h a t w i ll de - e n e rg i z e th e c r a n k c a s e h e a te r u n l e ss u n i t i s be i n g se r v ic e d or is to be s h u t d o w n fo r a

pr o lo ng e d pe r io d Af te r a p r o l o n g e d s h u t d o w n or a se r vi c e jo b , en e r g iz e th e cr a n k c a se he a t e r f o r 2 4 ho u r s b e f o r e s ta r t ing th e co m pre s s o r .

Compressor Motor Protection consists of 3 tem

perature sensors embedded in motor windings and connected to a solid state module in unit control box.

When an overtemperature condition causes module to shut compressor off, push control circuit STOP switch. Investigate cause of compressor shut down and correct. After compressor cools, push control circuit START-RESET switch. Compressor will restart after Time Guard delay period.

SOLID STATE MODULE is checked by applying unit control voltage to terminals T1 and T2 (see label diagram), then checking for continuity across terminals Ml and M2. If no continuity between Ml and M2, check temperature sensor resistance using a volt-ohmmeter. If all sensors check below 95 ohms (180 F) and there is no continuity between module terminals Ml and M2, replace module.

CAUTI O N: D o no t u s e a ba t te r y p o w e r ed t e s t la m p t o ch e c k s e n so r s E x c e s si v e cu r r e n t ca n ca u s e d a ma g e

If one sensor fails, it can be jumpered out of the circuit with a 75 ohm, or higher, resistor (rated at 2 watts or higher) across the proper sensor terminal and common terminal. If a short to ground in sensor circuit is indicated, replace

compressor motor.

CAPACITY CONTROL SYSTEM

Capacity Control Valve(s) is controlled by suction

pressure and actuated by discharge pressure. Each

valve controls 2 cylinders. On start-up, controlled

cylinders do not load up until differential between suction and discharge pressure is 10 psi (see Fig. 6).

D o no t us e au t o m a t i c p u m p d o wn c o n tr o l on

06 E , 0 7 E u n i ts e q u i p p ed wi th u n l o a d e r va l v e s . U s e

sing l e p u m p o u t o r s o le n o i d d r o p (mi n im um p r o 

te ct i o n ) c o n tr o l

Capacity Control Valve Adjustments

CONTROL SET POINT (cylinder load point) is

adjustable from 0 psig to 85 psig. Pressure differ ential between cylinder load-up point and cylinder

unload point is adjustable from 6 psi to 22 psi.

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