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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500239-01
Printed in U.S.A.
Form 50KC-4-6-03SI
Pg 1
3-2020
Replaces: 50KC-4-6-02SI
Installation Instructions
NOTE: Read the entire instruction manual before starting the
installation.
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
Model Number Nomenclature and Dimensions . . . . 2
Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . 10
Step 2 — Plan for Sequence of Unit Installation . . 10
• SLAB MOUNT (HORIZONTAL UNITS ONLY)
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . . 11
• FOR UNITS WITH ACCESSORY ELECTRIC HEATERS
Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . 11
Step 7 — Convert to Horizontal and Connect
Ductwork (when required) . . . . . . . . . . . . . . . . . . 12
Step 8 — Install Outside Air Hood . . . . . . . . . . . . . . 13
• ECONOMIZER HOOD PACKAGE REMOVAL AND
Step 9 — Units with Hinged Panels Only . . . . . . . . 14
Step 10 — Install External Condensate Trap
and Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 11 — Make Electrical Connections . . . . . . . . . 15
• UNITS WITH FACTORY-INSTALLED NON-FUSED
• UNITS WITHOUT FACTORY-INSTALLED NON-
• FACTORY OPTION THRU-BASE CONNECTIONS
• UNITS WITHOUT THRU-BASE CONNECTIONS
• UNIT WITHOUT THRU-BASE CONNECTION KIT
Electric Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
• SINGLE POINT BOXES AND SUPPLEMENTARY
• SINGLE POINT BOXES WITHOUT FUSES
• LOW-VOLTAGE CONTROL CONNECTIONS
Humidi-MiZer® Control Connections . . . . . . . . . . . 21
• HUMIDI-MIZER – SPACE RH CONTROLLER
Economi$er® X (Factory Option) . . . . . . . . . . . . . . .23
• ECONOMIZER MODULE WIRING DETAILS
Control and Power Wiring Diagrams . . . . . . . . . . . .34
Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Step 12 — Adjust Factory-Installed Options . . . . . .43
• ECONOMI$ER IV OCCUPANCY SWITCH
• BELT FORCE — DEFLECTION METHOD
Evaporator Coil Metering Devices . . . . . . . . . . . . . .44
Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . .44
UNIT START-UP CHECKLIST. . . . . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified service personnel should install, repair, or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of
cleaning coils and filters and replacing filters. All other operations
should be performed by trained service personnel. When working
on air-conditioning equipment, observe precautions in the
literature, tags and labels attached to the unit, and other safety
precautions that may apply.
Follow all safety codes, including ANSI (American National
Standards Institute) Z223.1. Wear safety glasses and work gloves.
Use quenching cloth for unbrazing operations. Have fire
extinguisher available for all brazing operations.
It is important to recognize safety information. This is the safety-
alert symbol
. When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which
will
result in
severe personal injury or death. WARNING signifies hazards
which
could
result in personal injury or death. CAUTION is used
to identify unsafe practices, which
may
result in minor personal
injury or product and property damage. NOTE is used to highlight
50KC04-06
Single Package Rooftop Cooling Only
with Puron
®
(R-410A) Refrigerant
Содержание 50KC04
Страница 4: ...4 Fig 2 Unit Dimensional Drawing of Units Built On and After 4 15 19...
Страница 5: ...5 Fig 3 Unit Dimensional Drawing of Units Built on and Prior to 4 15 19...
Страница 6: ...6 Fig 4 Unit Corner Weights and Clearances...
Страница 7: ...7 Fig 5 Base Rail Details...
Страница 8: ...8 Fig 6 Thru the Base Charts...
Страница 35: ...35 Fig 49 Electro Mechanical Control Wiring Diagram...
Страница 36: ...36 Fig 50 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...
Страница 37: ...37 Fig 51 Electro Mechanical Power Wiring...
Страница 38: ...38 Fig 52 PremierLink Wiring Schematic...
Страница 39: ...39 Fig 53 PremierLink Wiring Schematic with Humidi MiZer System...
Страница 40: ...40 Fig 54 RTU Open System Control Wiring Diagram...
Страница 41: ...41 Fig 55 RTU Open System Control Wiring Diagram with Humidi MiZer System...
Страница 47: ...47 Fig 63 TXV Metering Device Position in Reheat Coil Typical Diagram for Sizes 04 06 TXV...
Страница 48: ......
Страница 49: ......