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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. 04-53500269-01
Printed in U.S.A.
Form 50GC-4-6-03SI
Pg 1
12-19
Replaces: 50GC-4-6-02SI
Installation Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
MODEL NUMBER NOMENCLATURE AND
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . . 7
Step 2 — Plan for Sequence of Unit Installation . . . 7
• SLAB MOUNT (HORIZONTAL UNITS ONLY)
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . . . 9
• UNITS WITH ACCESSORY OR OPTIONAL ELECTRIC
Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . 9
Step 7 — Convert to Horizontal and Connect
Ductwork (When Required) . . . . . . . . . . . . . . . . . 10
Step 8 — Install Outside Air Hood . . . . . . . . . . . . . . 11
• ECONOMIZER HOOD PACKAGE REMOVAL AND
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Step 11 — Make Electrical Connections . . . . . . . . . 12
• 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
• TYPICAL UNIT WIRING DIAGRAMS
EconoMi$er® X (Factory Option) . . . . . . . . . . . . . . . 24
• ECONOMIZER MODULE WIRING DETAILS
• STANDARD OR SINGLE SPEED FAN OPERATION
• 2SP H/C AND 3 SPEED FAN OPERATION
• CHECKOUT
Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Step 12 — Adjust Factory-Installed Options . . . . . .37
• ECONOMI$ER® IV OCCUPANCY SWITCH
Step 13 — Install Accessories . . . . . . . . . . . . . . . . .37
Step 14 — Fan Speed Set Up . . . . . . . . . . . . . . . . . .38
• UNITS WITH ELECTRO-MECHANICAL CONTROLS
• UNITS WITH SYSTEMVU™ CONTROLS
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
®
50GC**04-06
Single Package Rooftop Cooling Only/Electric Heat Unit
with Puron
®
(R-410A) Refrigerant
Содержание WeatherMaster 50GC 04-06 Series
Страница 4: ...4 Fig 2 50GC 04 06 Unit Dimensional Drawing...
Страница 5: ...5 Fig 2 50GC 04 06 Unit Dimensional Drawing cont...
Страница 6: ...6 Fig 2 50GC 04 06 Unit Dimensional Drawing cont...
Страница 22: ...22 Fig 42 Typical 50GC 04 06 Control Wiring Diagram 208 230V W7220 Control Unit Shown...
Страница 23: ...23 Fig 43 Typical 50GC 04 06 Power Wiring Diagram 208 230V Unit Shown...
Страница 41: ......