Carrier 30H - Manual

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