FORM 150.63-EG4 (1012)
47JOHNSON CONTROLS
Guide Specications
PART 1 – GENERAL
1.01 SCOPE
A. The requirements of the General Conditions, Supple-
mentary Conditions, Division 1, and Drawings apply
to all Work herein.
B. Provide Microprocessor controlled, multiple-scroll
compressor, air-cooled, condensing units of the
scheduled capacities as shown and indicated on the
Drawings, including but not limited to:
1. Condensing Unit package
2. Electrical power and control connections
3. DX Central Station Air Handling connections
1.02 QUALITY ASSURANCE
A. Products shall be Designed, Tested, and installed in
compliance with applicable sections of the following
Standards and Codes:
1. ANSI/ASHRAE Standard 15 – Safety Code for
Mechanical Refrigeration
2. ASHRAE 90.1 - Energy efciency compliance.
3. ANSI/NFPA Standard 70 – National Electrical
Code (N.E.C.).
4. Conform to Intertek Testing Services, formerly
ETL, for construction of condensing units and
provide E.T.L./c E.T.L. Listing label.
5. Manufactured in facility registered to ISO 9002.
B. Factory Test: Condensing Unit shall be pressure
tested, evacuated and given a nitrogen holding
charge and an initial oil charge, and shall be factory
operational run tested to assure each control device
operates properly.
C. Warranty: Manufacturer shall Warrant all equipment
and material of its manufacture against defects in
workmanship and material for a period of one year
from date of initial start-up or eighteen (18) months
from date of shipment, whichever occurs rst.
1.03 DELIVERY AND HANDLING
A. Unit shall be delivered to job site fully assembled, and
given nitrogen holding charge and a full oil charge
by the Manufacturer. (R-410A refrigerant supplied by
others).
B. Unit shall be stored and handled per Manufacturer’s
instructions.
PART 2 - PRODUCTS
2.01 CONDENSING UNITS MATERIALS AND COM-
PONENTS
A. General: Install and commission, as shown on the
schedules and plans, factory assembled, charged,
and tested air cooled scroll compressor condensing
unit as specied herein. Condensing Unit shall be de-
signed, selected, and constructed using a refrigerant
with Flammability rating of “1”, as dened by ANSI/
ASHRAE STANDARD - 34 Number Designation and
Safety Classication of Refrigerants. Condensing Unit
shall include, but is not limited to: not less than two
refrigerant circuits, scroll compressors, air-cooled
condenser, refrigerant, lubrication system, intercon-
necting wiring, safety and operating controls includ-
ing capacity controller, control center, motor starting
components, and special features as specied herein
or required for safe, automatic operation.
B. Cabinet: External structural members shall be con-
structed of heavy gauge, galvanized steel coated with
baked on powder paint which, when subject to ASTM
B117, 1000 hour, 5% salt spray test, yields minimum
ASTM 1654 rating of “6”.
2.02 COMPRESSORS
Compressors: Shall be hermetic, scroll-type, including:
1. Compliant design for axial and radial sealing.
2. Refrigerant ow through the compressor with
100% suction cooled motor.
3. Large suction side free volume and oil sump to
provide liquid handling capability.
4. Compressor crankcase heaters to provide extra
liquid migration protection.
5. Annular discharge check valve and reverse vent
assembly to provide low pressure drop, silent
shutdown and reverse rotation protection.
6. Initial Oil charge.
7. Oil Level sightglass.
8. Vibration isolator mounts for compressors.
9. Brazed-type connections for fully hermetic re-
frigerant circuits.
2.03 REFRIGERANT CIRCUIT
Two independent refrigerant circuits will be furnished on
each unit. All unit piping will be copper, with brazed joints.
The liquid line will include a eld connection shutoff valve
with charging port located on each condenser circuit. Suc-
tion line connections are provided on each refrigeration
circuit. Filter drier and sight glass are shipped loose for
eld installation on each refrigerant circuit. All expansion
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