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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. 04-53500238-01
Printed in U.S.A.
Form 50HC-4-6-03SI
Pg 1
12-19
Replaces: 50HC-4-6-02SI
Installation Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
MODEL NUMBER NOMENCLATURE AND
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . . 9
Step 2 — Plan for Sequence of Unit Installation . . . 9
• SLAB MOUNT (HORIZONTAL UNITS ONLY)
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . . 11
• UNITS WITH ACCESSORY OR OPTIONAL ELECTRIC
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 AND TWO-POSITION DAMPER HOOD
PACKAGE REMOVAL AND SETUP (FACTORY
• ECONOMIZER AND TWO-POSITION HOOD
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 11 — Make Electrical Connections . . . . . . . . . 14
• UNITS WITH FACTORY-INSTALLED NON-FUSED
• UNITS WITHOUT FACTORY-INSTALLED NON-
• FACTORY OPTION THRU-BASE CONNECTIONS
• UNITS WITHOUT THRU-BASE CONNECTIONS
• HUMIDI-MIZER® CONTROL CONNECTIONS
• CONTROL AND POWER WIRING DIAGRAMS
Economi$er® X (Factory Option) . . . . . . . . . . . . . . . 35
• ECONOMIZER MODULE WIRING DETAILS
Step 12 — Adjust Factory-Installed Options . . . . . .47
• ECONOMI$ER IV OCCUPANCY SWITCH
• BELT FORCE — DEFLECTION METHOD
Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . .48
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 litera-
ture, tags and labels attached to the unit, and other safety precau-
tions that may apply.
Follow all safety codes, including ANSI (American National Stan-
dards 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 in-
structions 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
suggestions which
will
result in enhanced installation, reliability,
or operation.
WeatherMaster
®
50HC**04-06 Single Package Rooftop
Cooling Only/Electric Heat Unit
with Puron
®
(R-410A) Refrigerant
Содержание 50HC Series
Страница 4: ...4 Fig 2 50HC 04 06 Units Built On and After 4 15 2019...
Страница 5: ...5 Fig 3 50HC 04 06 Units Built Prior to 4 15 2019...
Страница 6: ...6 Fig 4 50HC 04 06 Corner Weights and Clearances...
Страница 7: ...7 Fig 5 50HC 04 06 Base Rail Details...
Страница 8: ...8 Fig 6 50HC 04 06 Thru the Base Charts...
Страница 25: ...25 Fig 47 Electro Mechanical Control Wiring Diagram...
Страница 26: ...26 Fig 48 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...
Страница 27: ...27 Fig 49 Electro Mechanical Control Power Wiring Diagram...
Страница 29: ...29 Fig 51 50HC ComfortLink Control with Humidistat Power Wiring Diagram 208 230V 460V 575V 3 Phase...
Страница 30: ...30 Fig 52 50HC ComfortLink Control with Humidi MiZer System Power Wiring Diagram 208 230V 460V 575V 3 Phase...
Страница 31: ...31 Fig 53 PremierLink Wiring Schematic...
Страница 32: ...32 Fig 54 PremierLink Wiring Schematic with Humidi MiZer System...
Страница 33: ...33 Fig 55 RTU Open System Control Wiring Diagram...
Страница 34: ...34 Fig 56 RTU Open System Control Wiring Diagram with Humidi MiZer System...
Страница 49: ......