Carrier 07E - Manual

Carrier
installation, Start-Up ncsc H7F
and Service Instructions WOC,u/C
Compressors and Condensing Units
Hermetic, Water-Cooled
PRELIMINARY SURVEY
Inspect shipment for damage. File claim with
the shipping company if shipment is damaged or
incomplete.
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 service
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.
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.
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.
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.
SMUBBER FLATBED
WASHER
MEOPRENE
SNUBBER
^COMPRESSOR FOOT
, tSOtATtON SPRiNO
Fig. 1 — Compressor Mounting
PIPING CONNECTIONS
Attach water supply and return line to connec­
tions 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 supplied with 06EV,W compressor units is
installed in discharge line as close to shutoff valve
as possible. When soldering or brazing piping to
valves, disassemble the valve or wrap it in wet cloth
to prevent damage by heat. Allow flexibility in
suction line so compressor suction valve may be
moved aside for access to suction strainer.
Install a solenoid valve (field supplied) in liquid
hne directly before expansion valve. Solenoid valve
is necessary for single pumpout control used on
06E,07E units (refer to Start-Up and Service
Instructions). A filter-drier of adequate size should
be installed in liquid line between condenser 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.
Table 1 — Physical Data
COMPRESSOR UNIT 06E
d P E R A fjNjG W E (G H T (fb)
CONDENSING UNIT 07E
OPERATING WEIGHT (lb)
refrige Y nt
COMPRESSOR 06E
Oil Charge (pt) (PP33-2)
Normal Oil Pressure*
Oil Safety Switch Cut-In
Cutout
High-Pressure Switch
Cutout Range
V022 W027 1 W033 W044
6Ô0 650 ' 670
BO 22 B027^
.
1
,
B033 D044
1275 1340 1 1350 1560
R-22, R-502^
D250 0265 I F 275 E299
D150 N265 ; N175 N599
14 16 i Î9
12-18 psig
8-10 psig
4- 5 psig
Differential (cutout, cut-in) f
Factory Settings f Cutout '
Cut-in i
230 to 400 psiq (adj)
23G to 340 p'ji ;g (ccj)
, 80 ± 10 psi (fi xed)
370 ± 7 Dsig
28C i
290 +
7 psig
200 ± 7 psic
Low-Pressure Switch
Cutout Range
Differential (cutout, cut-in)
Factory Settings! Cutout
Cut-in
Low Side Max Pressure
CONDENSER DATA
Max Refrigerant (R-22)
Storage Capacity (lb) t
Min Refrigerant (R-22)
Operating Charge (Ib)
Max Operating Pressure
Refrigerant Side
Water Side
20 in Hg vac to 60 psig (adj)
20 in Hg vac to 70 psig (adj)
31 psi (adj 13 to 50)
36 + 4 psig
67 + 4 psig
245 psig
135
' 33
335 psig
250 psig
193
37
J 07E Conidensing Unit data
* Pressures noted are above operating suction pressure; i.e , pressure
differential between suction pressure and discharge pressure of oil
pump.
Î Pressure switch settings shown are for R-22. When using other
refrigerants, reset high- and low-pressure switch settings to
pressures corresponding to satuialion temperatures indicated by
the above pressures.
\ Condenser 80% filled with liquid refrigerant at 104 F,
© Carrier Corporation 1972 Form 06E,07E-4SI