Carrier 30HK - Installation Step 3: Compressor Mounting; Compressor Mounting and Connections; Installation Step 4: Piping Connections; Condenser Description and Piping

Table 2 — Physical Data
UNIT AND COMPRESSOR
UNIT 30HK,HL
015
020 025 j 030
APPROXIMATE
HK
1637
1787
1980 i 1985
OPERATING WT (lb)
HI
1016
1136
1310 1 1334
REFRi6ERANT(R-22)
“hkI 34
38 40 I 45
CHARGE (lb)
HL
Holding Charge
COMPRESSOR 06*
HK DC537
E2150 E7265 i E 7 1 7 5
hci DC53? E2250^ E7265 i E7275
No. Cylinders
6
4
6 I; 6
Oil Charge (pt)t
8.5 14
19 : 19
No. of Unioaders
2 1 2 i 2
Cap. Control Steps
3
3 3 ; 3
CONDENSER, 09RP (HK)
022
027
MAX DESIGN WORKING
PRESSURE (psig)
- , ( W ater Side
1 RefrIg Side
150
235
_ . f Water Side
Condenser 3 . ^^
250
385
COOLER
COOLER 10HA400
774 784
UNIT 30HK,HL 015,020 j
025,030
SHELL, Net Vol. (Gal.)i 6.8 j
9.9
TUBES (Copper) Internal Fins,
5/8-in. OD X 0.020 wail
Number 81 I
81
Length (in.) : 62.5 85.5
Eff. Outside Surface (sq ft) i
66.3 91.7
REFRIGERANT CIRCUITS
1 1
CONNECTIONS (m.)
,,, ( In and Out (MPT)
i Drain (MPTI
2 i 2
%
1 %
Refrig
«Suction
1 1.125 i 1.125
1.625 ODM
I 2.125 ODM
WEIGHTS (lb)
Cooler (Net)
354
446
Water
i 75
i 100
Refrigerant 8 1 12
Total
437 1 558
CONDENSER
09RP 022
027
TUBES
OD (in.)
Wall Thickness (in.)
Plain End
Finned Section
Length (in.)
Fins/in.
Number**
X « , X , ( Inside
Surface Area (sq ft) S _
( Outside
Copper, integral Fins
%
0.043
0.028
70M?
40
36 ’ 44
32.9 i 40.2
133.6 ! 163.4
NO. WATER PASSES 3
CONNECTIONS (in.)
... ^ ( In (IPS)
1 Out (IPS)
Relief Valve Outlet (SAE)
Water Regulating Valve
Liquid Outlet (ODF)
Hot Gas (ODF)
2 V 2 Sched 40
272 Sched 40
%
Vn
%
1%
‘Prefix; 2 = 1 electric unloader; C, 7 = 2 electric unloaders.
tSee Check Oil Charge for Carrier-approved oil.
^Includes nozzles.
**lncludes 5 subcooier tubes.
Only electrical power connections and water con¬
nections for condenser and cooler are required for
HK installation. Installation of HL units varies only
in field piping required for the remote condenser.
Step 3 — Check Compressor Mounting and
Connections
As shipped, compressor is held down by special
self-locking bolts and plain lock washers. After unit
is installed, remove self-locking bolts one at a time
and reassemble with flanged washers and neoprene
snubbers as shown in Fig. 2. Special flanged washers
and neoprene snubbers are shipped in a cloth bag
tied to one of the compressor feet. Tighten all 4
bolts. Then loosen each until flanged washer can be
moved sideways with finger pressure.
with any adjacent walls, and be sure unit capil-
M rubbing ngmmrmytMBg.
SERVICE ACCESS
Remove combination top and back cover over
compressor. Servicing can be performed from either
top or back. For rear access, allow approximately
3 ft of clear space behind unit.
Step 4 — Make Piping Connections
CONDENSER DESCRIPTION
The condenser is a sheli-and-tube type with
removable heads for easy tube servicing. Condenser
has an internal subcooler designed for 12- 15 F total
liquid subcooling at average tower water conditions.
For further condenser data refer to Table 2, Physi¬
cal Data.
CONDENSER PIPING
Provide a means for draining system in winter
and for maintenance.
Keep water supply lines as short as possible. Size
lines according to available head pressure, rather
than by connection size, especially on cooling
tower applications. Use flexible connections to
reduce vibration transmission. Refer to Carrier
System Design Manual, Part 3, Piping Design.
The 30HL units using air-cooled or evaporative
condenser should have adequate means for head
pressure control when operating below 60 F outdoor
ambient temperature.
A water regulating valve must be installed on
cooling tower application when any of the following
conditions exists:
1. Low outdoor ambient temperatures affect head
pressure.
2. Entering chilled water temperature is below 70 F.
3
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