Carrier 30H User Manual

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Carrier Parkway • Syracuse NY 13221
Reciprocating Heat Reclaim Units
60-Hertz
CONTENTS
Page
INSTALLATION ...................................................................1
Step 1 — Inspect the Shipment
........................................
1
Step 2 — Rig and Place the Unit......................................1
RIGGING......................................................................1
PLACEMENT...............................................................1
Step 3 — Check Compressor Mounting &
Connections
......................................................................
1,2
SERVICE ACCESS
......................................................
3
Step 4 — Make Piping Connections.................................3
CONDENSER DESCRIPTION
...................................
3
TOWER CONDENSER PIPING
................................
3
HEAT RECLAIM CONDENSER PIPING .. 3
COOLER DESCRIPTION...........................................4
COOLER PIPING
........................................................
4
Step 5 — Make Electrical Connections
...........................
4
ELECTRICAL BOX, CONTROL SECTION . 5
ELECTRICAL BOX, POWER SECTION ... 5
START-UP AND SERVICE.................................................5
INITIAL CHECK..................................................................5
Check Refrigerant Charge................................................6
LIQUID CHARGING METHOD
...............................
6
Check Oil Charge
..............................................................
6
TO ADD OIL.................................................................6
TO REMOVE OIL........................................................6
START-UP AND OPERATION CHECKS
.........................
6
Check Refrigerant Feed Components
.......................
THERMOSTATIC EXPANSION VALVE
FILTER-DRIER
.....................................................
MOISTURE-LIQUID INDICATOR
....................
LIQUID-LINE SERVICE VALVE
.......................
PRESSURE RELIEF DEVICES
...........................
Page
. .7
,.7
Check Compressor Protection Devices ....
CIRCUIT BREAKER
........................................
DISCHARGE TEMPERATURE
THERMOSTAT
................................................
CRANKCASE HEATER
...................................
TIME GUARD® CONTROL
............................
FOUR FUNCTION TIMER
..............................
OIL PRESSURE SAFETY SWITCH (OPS) .8
Check Unit Safety Devices
................................................
8
SAFETY THERMOSTAT
...........................................
8
HIGH-PRESSURE SWITCH
......................................
9
LOW-PRESSURE SWITCH
.......................................
9
Check Capacity Control System
......................................
9
DESCRIPTION .............................................................9
4-STEP TEMPERATURE CONTROLLER .. 9
DESIGN SETPOINT ADJUSTMENT
......................
10
CYLINDER UNLOADING SYSTEM
......................
10
UNIT OPERATION ............................................................. 11
Control Power.................................................................. 11
Control Sequence............................................................. 11
Stoppage and Restart...................................................... 11
SERVICING THE COOLER
............................................
11,12
Tube Plugging................................................................... 12
Retubing
...........................................................................
12
Tightening Cooler Head Bolts......................................... 12
GASKET PREPARATION
........................................
12
BOLT TORQUES
.......................................................
12
BOLT TIGHTENING SEQUENCE
.........................
13
TROUBLESHOOTING GUIDE
...................................
14,15
INSTALLATION
Step 1 — Inspect the Shipment
Inspect the unit for damage or missing parts. If
damage is detected, or if shipment is incomplete,
file a claim immediately with the shipping company.
Step 2 — Rig and Place the Unit
RIGGING
On each end of the cooler, a steel loop is pro
vided for the preferred method of lifting the unit.
Use spreader bars to keep cables away from the
compressor enclosure and control box. If unit is to
be moved by fork truck, use the following methods:
1. From the front or rear, lift under the cooler rails.
Unit can be either on or off the skid.
2. When moving from the ends, leave the unit on the
skid. Lift from under the skid.
If unit is to be dragged or rolled into final posi
tion, leave it on the skid; apply force only to the skid,
not the unit. When rolling, use a minimum of 3
rollers.
PLACEMENT
When the unit is in final position, remove the
skid, level the unit with a spirit level and bolt to
the floor or pad.
These units are not suitable for unprotected
outdoor use.
Carrier recommends that these units be located in
the basement or on the ground floor. However, if it
is necessary to locate the unit on an upper floor, be
sure the structure has been designed to support the
weight. If necessary, add structural support to the
floor. Also, be sure the surface for installation is
level. Refer to Fig. 1 for space requirements and
Table 1 for weight distribution.
Only electrical power connections and water con-„
nections for condensers and cooler are required for
installation.
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 the self-
© Carrier Corporation 1979
Form 30H-1S1
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1 2 3 4 5 6 ... 15 16

Summary of Contents

Page 1 - INSTALLATION

Carrier Parkway • Syracuse NY 13221Reciprocating Heat Reclaim Units60-HertzCONTENTSPageINSTALLATION ...

Page 2 - Fig. 2 — Compressor Mounting

Example;Design setpoint is at 44 F. On a reduction in load, the capacity of the unit will be reduced to zero when return water t

Page 3 - 2 are Tower

UNIT OPERATIONControl Power (115 volts) can be from a separate source, thru a 15-amp fused disconnect or can be taken from the main

Page 4 - ±2 MUST BE

Tube Plugging — A leaky tube(s) can be plugged until retubing can be done. The number of plugged tubes determines how soon the co

Page 5 - START-UP AND SERVICE

BOLT TIGHTENING SEQUENCE (Fig. 13)The following is a recommended bolt tightening sequence:Step 1 — Tighten moderately (without torquing) all th

Page 6 - START-UP AND OPERATION CHECKS

TROUBLESHOOTING GUIDESYMPTOMS Compressor does not runCompressor cycles on low- pressure controlCompressor loses oilFrosted or sweating suction fine

Page 7

TROUBLESHOOTING GUIDE (Coni)SYMPTOM System noisesChattering unloader Freeze-upHot liquid line Frosted liquid lineCompressor will not unloadCompressor

Page 8 - LOW LIMIT STOP TAB

For replacement items use Carrier Specified Parts.Manufacturer reserves the right to discontinue, or change at any time, specifications or designs wit

Page 9

UNIT DIMENSIONSDIMENSION30H1 DIMENSION040 050,060 040LENGTH 1 toe. CHILLED WATER CONN.8«stc UnitA8 - 1-7/16 871 InletG 1 - 6With Cond. ManifoldsA’ 9 1

Page 10 - Fig. 9 — Cylinder Bank Loaded

COMPLETE UNITTabie 2 — Physical DataUNIT ЗОН040 050 060APPROX OPER WT (lb):39304310 4440REFRIG CHG, R-22 (lb) Ckt 152 62 62Ckt 252 : 5262COMPRESSOR 0

Page 11 - I stops and timer

CAUTION; Retìghten all condenser head boltsbefore filling system with water. Torque boltsto 150-170 Ib-ft.Water leaving condenser is under pressu

Page 12 - Fig. 12 — Elliott Tube Plug

COMPLETE UNITTable 4 — Electrical Data; 3-Phase, 60-HertzNameplateVOLTS200 230 46057506E COMPRSupply Range"180-229207-264 414-528518-660USAGEtMax

Page 13

Check Refrigerant Charge1MP(.)R'1 \N T; Do not t>pi;n liquid \al\t' or «-•omprcssor ciisdniiiie \al\o uinil it is determin

Page 14

5. Check leaving chilled water temperature to see that it remains well above freezing.6. Recheck compressor oil level (see Check Oil Charge).7. Be

Page 15

FOUR FUNCTION TIMERRefer to Fig. 4 — Timer Cycle. The functions are as follows:Switch A (Contacts A-Al, A-A2) runs the timer motor. This prov

Page 16

HIGH-PRESSURE SWITCH (HPS)The HPS settings are nonadjustable. Table 5 shows the factory settings for this switch.If the HPS cuts out while

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