Carrier 19DA - Manual

Carrier Start-Up instructions 19DA
OIL HEATER INDICATOR LIGHT
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MOTOR
ROTATION
SIGHT GLASS
LOW OIL PRESSURE
SWITCH
OIL LEVEL SIGHT GLASS
OIL TEMPERATURE GAGE
CONDENSER HIGH-PRESSURE
OIL PRESSURE
GAGE
OIL CHARGING
VALVE
eX
OIL PUMP
JL,
ASSEMBLY^ --------------------- a
f—?iii;
ANTIRECYCLE
TIMER (HIDDEN)
COOLER
CHARGING
VALVE
OIL THERMOSTAT
(HIDDEN)
REFRIGERANT
LOW TEMP CUTOUT
Fig. 1 - 19DA Hermetic Refrigeration Machine
INTRODUCTION
General - Use this booklet as a guide for initial
start-up of the 19DA Hermetic Centrifugal Re­
frigeration Machine. Read and fully understand
these instructions plus all necessary Job Data
before beginning initial start-up. Instructions are
given in the proper sequence for optimum ma­
chine performance.
Job Data Required
1. Machine assembly prints
2. Wiring diagrams
3. Starter details
4. 19DA Installation Instructions
5. 19DA Operation and Maintenance Instructions
Equipment and Materials Required
1. Mechanics' tools
2. Volt-ohmmeter
3. Carrier refrigerant drum charging valve
4. 5/8" SAE X 3/4" MPT cooler charging adapter
5. Five to ten ft of copper tubing or plastic hose
6. Halide or electronic leak detector
7. Low-pressure indicator
a. Absolute pressure manometer
b. Wet-bulb indicator
8. Clamp-on ammeter
9. Portable dehydration pump
INITIAL PREPARATIONS
CAUTION: Do not operate refri^rant pump
unless machine is charged with refrigerant.
Do nor start compressor or oil pump, even for
a rotation check, while machine is at vacuum.
Check rotation only after compressor has been
charged with oil and machine has been charged
with refrigerant.
Machine Tightness - A shipping vacuum was ap­
plied to the refrigerant side of the 19DA machine
before shipment from the factory. Over a period
of time, during shipment or storage, part of this
vacuum may be lost. The loss of a small amount
of vacuum may be acceptable and within Carrier's
machine tightness standards. To determine if the
vacuum loss is acceptable or not requires the
following steps:
© Carrier Corporation 1966 Form 19DA-1SS