Carrier WeatherMaker 48FE Handleiding
Carrier
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WeatherMaker 48FE
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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. 04-53480509-01 Printed in U.S.A. Form No. 48FE-20-30-01SI Rev. A Pg 1 7-24 Replaces: New
Installation Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . 20
• ROOF MOUNT
Step 2 — Plan for Sequence of Unit Installation . . 20
• CURB-MOUNTED INSTALLATION
• PAD-MOUNTED INSTALLATION
• FRAME-MOUNTED INSTALLATION
Step 3 — Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . 20
Step 4 — Provide Unit Support . . . . . . . . . . . . . . . . 21
• ROOF CURB MOUNT
• SLAB MOUNT (HORIZONTAL UNITS ONLY)
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
SLAB MOUNT)
Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . . 25
Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . 25
• POSITIONING ON CURB
Step 7 — Horizontal Duct Connection . . . . . . . . . . 26
Step 8 — Install Outside Air Hood - Factory Option . 26
Step 9 — Assemble Barometric Hood . . . . . . . . . . 27
• BAROMETRIC HOOD (VERTICAL CONFIGURATION)
• BAROMETRIC HOOD (HORIZONTAL
CONFIGURATION)
Step 10 — Install Flue Hood and Combustion Air
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Step 11 — Install Gas Piping . . . . . . . . . . . . . . . . . . 29
• GAS SUPPLY LINE
• FACTORY OPTION THRU-BASE CONNECTIONS
Step 12 — Install External Condensate Trap and
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Step 13 — Make Electrical Connections . . . . . . . . . 31
• FIELD POWER SUPPLY
• UNITS WITHOUT FACTORY-INSTALLED
NON-FUSED DISCONNECT
• UNITS WITH FACTORY-INSTALLED NON-FUSED
DISCONNECT
• ALL UNITS
• CONVENIENCE OUTLETS
• FACTORY OPTION THRU-BASE CONNECTIONS
• UNITS WITHOUT THRU-BASE CONNECTIONS
• FIELD CONTROL WIRING
• THERMOSTAT
• UNITS WITHOUT THRU-BASE CONNECTIONS
• HEAT ANTICIPATOR SETTINGS
• TRANSFORMER CONNECTION FOR 208 V POWER
SUPPLY
Humidi-MiZer
®
System Control Connections . . . . . 36
• HUMIDI-MIZER — SPACE RH CONTROLLER
Typical Unit Wiring Diagrams . . . . . . . . . . . . . . . . . .36
Integrated Gas Controller . . . . . . . . . . . . . . . . . . . . .44
Leak Dissipation System . . . . . . . . . . . . . . . . . . . . .47
• SEQUENCE OF OPERATION
• LEAK DISSIPATION SYSTEM SELF-TEST
• TROUBLESHOOTING
Humidi-MiZer Dehumidification System
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
• NORMAL COOLING
• DEHUM/MECH COOLING (SUBCOOLING) MODE
• DEHUMIDIFICATION (HOT GAS REHEAT) MODE
• REHEAT CONTROL
Temporary Furnace Operation During
Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
EconomizerONE (Factory Option) . . . . . . . . . . . . . .52
• ECONOMIZER SETTINGS
•WIRING
• SETUP AND CONFIGURATION
• INSTALLING OPTIONAL HH57LW001 SINGLE
OUTSIDE AIR ENTHALPY SENSOR
• CHECKOUT
• TROUBLESHOOTING
Step 14 — Adjust Factory-Installed Options . . . . . .73
• SMOKE DETECTORS
• ECONOMIZERONE OCCUPANCY SWITCH
Step 15 — Install Accessories . . . . . . . . . . . . . . . . .73
Step 16 — Fan Speed Set Up . . . . . . . . . . . . . . . . . .73
• UNITS WITH ELECTROMECHANICAL CONTROLS
• UNITS WITH SYSTEMVU™ CONTROLS
COMPRESSOR ROTATION . . . . . . . . . . . . . . . . . . . .75
FASTENER TORQUE VALUES . . . . . . . . . . . . . . . . .76
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.
WeatherMaker
®
48FE**20-30
Single Package Rooftop
with Gas Heat/Electric Cooling
and EcoBlue™ Fan Technology
2
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.
WARNING
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in serious personal
injury, death, and/or property damage.
Disconnect gas piping from unit when leak testing at pressure
greater than 0.5 psig (3450 Pa). Pressures greater than 0.5 psig
(3450 Pa) will cause gas valve damage resulting in hazardous
condition. If gas valve is subjected to pressure greater than
0.5 psig (3450 Pa), it must be replaced before use. When
pressure testing field-supplied gas piping at pressures of
0.5 psig (3450 Pa) or less, a unit connected to such piping
must be isolated by closing the manual gas valve(s).
DANGER
ELECTRICAL SHOCK HAZARD
Failure to follow this warning will result in personal injury or
death.
Before performing service or maintenance operations on unit,
turn off main power switch to unit and install lock(s) and
lockout tag(s). Ensure electrical service to rooftop unit agrees
with voltage and amperage listed on the unit rating plate. Unit
may have more than one power switch.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
R-454B is an A2L refrigerant. All service equipment or
components must be A2L refrigerant rated. Do not use
non-A2L rated equipment or components on R-454B
refrigerant equipment
WARNING
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal injury or
death.
Relieve pressure and recover all refrigerant before system
repair or final unit disposal.
Wear safety glasses and gloves when handling refrigerants.
Keep torches and other ignition sources away from
refrigerants and oils.
WARNING
CARBON-MONOXIDE POISONING HAZARD
Failure to follow instructions could result in severe personal
injury or death due to carbon-monoxide poisoning, if
combustion products infiltrate into the building.
Check that all openings in the outside wall around the vent
(and air intake) pipe(s) are sealed to prevent infiltration of
combustion products into the building.
Check that furnace vent (and air intake) terminal(s) are not
obstructed in any way during all seasons.
AVERTISSEMENT
RISQUE D’INTOXICATION AU MONOXYDE DE
CARBONE
Si ces directives ne sont pas suivies, cela peut entraîner des
blessures graves ou une intoxication au monoxyde de carbone
pouvant causer la mort, si des produits de combustion
s’infiltrent dans le bâtiment.
Vérifier que toutes les ouvertures pratiquées dans le mur
extérieur autour du ou des tuyaux d’évent (et de la prise d’air)
sont scellées de manière à empêcher l’infiltration de produits
de combustion dans le bâtiment.
Veiller à ce que la ou les sorties de l’évent de l’appareil de
chauffage (et la prise d’air) ne soient, en aucune façon,
obstruées, quelle que soit la saison.
WARNING
FIRE HAZARD
Failure to follow this warning could result in severe personal
injury and/or property damage.
Inlet pressure tap set screw must be tightened and 1/8 in. NPT
pipe plug must be installed to prevent gas leaks.
Gas Valve
Inlet Pressure
Tap Set Screw
Product specificaties
| Merk: | Carrier |
| Categorie: | Niet gecategoriseerd |
| Model: | WeatherMaker 48FE |
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