User's Manual

1068152-YTG-L-0815
Johnson Controls Unitary Products 183
23 81 19.13.L. Filter Section
1. Filters access is specified in the unit cabinet section of this specification.
3. Shall consist of factory- installed, low velocity, throw- away 2” or 4” thick fiberglass filters.
3. Units can accept 2” or 4” filters and have a field convertible toolless
23 81 19.13.M. Evaporator Fan and Motor
1. Evaporator fan motor:
a. Shall have permanently lubricated bearings.
b. Shall have inherent automatic reset thermal protection (Only on single-phase, belt-drive motors, three -
phase, belt-drive motors have internal thermostat used for external line-break control.).
2. Electric Drive (Direct Drive) X13 – 5 Speed/Torque Evaporator Fan:
a. Multi- speed motor with easy quick adjustment settings.
b. Blower fan shall be double- inlet type with forward- curved blades.
c. Shall be constructed from steel with a corrosion resistant finish and dynamically balanced.
3. Belt- driven Evaporator Fan:
a. Belt drive shall include an adjustable- pitch motor pulley.
b. Shall use sealed, permanently lubricated ball- bearing type.
c. Blower fan shall be double- inlet type with forward- curved blades.
d. Shall be constructed from steel with a corrosion resistant finish and dynamically balanced.
23 81 19.13.N. Condenser Fans and Motors
The outdoor fans shall be of the direct drive type, discharge air vertically, have aluminum blades riveted to corrosion
resistant steel spider brackets and shall be dynamically balanced for smooth operation. The outdoor fan motors shall
have permanently lubricated 60°C ball bearings internally protected against overload conditions and staged
independently. A cleaning window shall be provided on two sides of the units for coil cleaning.
1. Condenser fan motors:
a. Shall be a totally enclosed motor.
b. Shall use permanently lubricated bearings.
c. Shall have inherent thermal overload protection with an automatic reset feature.
d. All models Shall use a shaft- down design except shaft- up on ZX14 & ZY12 size with rain shield.
2. Condenser Fans:
a. Shall be a direct- driven propeller type fan.
b. Shall have galvanized steel blades riveted to corrosion- resistant steel spiders and shall be dynamically
balanced.
23 81 19.13.O. Special Features Options and Accessories
1. IntelliSpeed - Staged Air Volume System (ZX12, ZX14, &ZY12)
a. Evaporator fan motor:
(1.) Shall have permanently lubricated bearings.
(2.) Shall have a maximum continuous bhp rating for continuous duty operation; no safety factors above
that rating.
(3.) Shall be Variable Frequency duty and 2- speed control.
2. Variable Frequency Drive (VFD). Only available on 2- speed indoor fan motor option (IntelliSpeed):
INSERT MITSUBISHI DRIVE SPECIFICATIONS
3. Standard Integrated Economizers:
a. Integrated, gear- driven opposing modulating blade design type capable of simultaneous economizer and
compressor operation.
b. Independent modules for vertical or horizontal return configurations shall be available. Vertical return
modules shall be available as a factory installed option.
48HC