Carrier fb4c - User Manual

Installation Instructions
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS ........................ 1
INTRODUCTION .................................. 1
HEATER PACKAGES .............................. 2
INSTALLATION ................................... 2
Step 1 -- Check Equipment ......................... 2
Step 2 -- Mount Unit .............................. 2
Step 3 -- Air Ducts ............................... 4
Step 4 -- Electrical Connections ..................... 4
Step 5 -- Refrigerant Tubing Connection and Evacuation .. 7
Step 6 -- Refrigerant Flow-Control Device ............. 7
Step 7 -- Condensate Drains ........................ 8
Step 8 -- Accessories .............................. 9
Step 9 -- Sequence of Operation .................... 10
START-UP PROCEDURES ......................... 10
CARE AND MAINTENANCE ....................... 10
AIRFLOW PERFORMANCE TABLES ................ 11
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory-authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing
and work gloves. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. Consult local
building codes and the current editions of the National Electrical
Code (NEC) NFPA 70.
In Canada, refer to the current editions of the Canadian Electrical
Code CSA C22A.
Recognize safety information. This is the safety-alert symbol /_.
When you see this symbol on the unit and in instruction manuals,
be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. 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.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing or servicing unit, always turn off all power to
unit. There may be more than 1 disconnect switch. Turn off
accessory heater power if applicable. Lock out and tag switch
with a suitable warning label.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs, Use care and
wear appropriate protective clothing and gloves when
handling parts,
INTRODUCTION
Models FB4C and FY5B are Puron Fan Coils designed for
installation flexibility. These units are designed to meet the low air
leak requirements currently in effect.
FB4C uses a refrigerant piston metering device with an X-13
integral electronically commutated motor for efficiency. These
units have be designed for upflow, downflow (kit required), and
horizontal orientations, including manufactured and mobile home
applications.
FY5B uses a refrigerant piston metering device (018 thru 048) with
2-speed PSC (permanent split capacitor) motors and TXV with
3-speed PSC motor for the 060 size, These units can be used for
upflow or downflow (kit required) orientations, including
manufactured and mobile homes applications.
These units require a field supplied air filter, and are designed
specifically for Puron refrigerant air conditioners and heat pumps
as shipped. These units are available for systems of 18,000 through
60,000 Btuh nominal cooling capacity. Factory-authorized, field -
installed electric heater packages are available in sizes 5 through
30kW. See Product Data literature for all available accessory kits.

Summary

Safety Considerations

General Installation Hazards

Hazards from improper installation, adjustment, alteration, service, or use.

Safety Compliance and PPE

Follow safety codes, use PPE, consult NEC and local codes.

Electrical Operation Hazard

Power Disconnect Procedure

Always turn off all power, lock out and tag switch before servicing.

Cut Hazard

Handling Sheet Metal

Use care and wear protective clothing/gloves due to sharp edges.

Installation Steps

Downflow Conversion Caution

Drain Procedures for Downflow

Special drain procedures for downflow conversion, using overflow hole.

Horizontal Installation Caution

Leveling for Drainage

Level unit for optimum condensate drainage.

Water Management Kit

Recommends kit for high static and humid return air.

Horizontal Conversion Procedures

Slope Coil Unit Conversion

Steps for converting slope coil units to horizontal right application.

A-Coil Unit Conversion

Steps for converting A-coil units to horizontal right application.

Air Duct Installation

Electrical Connections

Electrical Safety Warnings

Disconnect Switch Mounting Safety

Select safe location for disconnect switch to avoid component contact.

Line Voltage Connection Safety

Connect 208/230v power leads and ground wire properly.

Electrical Shock Hazard

Warning about live wires even when pull-out is removed.

Low Voltage Control System Wiring

24-V Control System Connection

Wiring low voltage according to label, using appropriate wire gauge.

Heater Staging and Transformer Information

Transformer Voltage Adjustment

Instructions for adjusting transformer from 230v to 208v.

Heater Staging Configuration

Guidelines for staging electric heaters with thermostats and relays.

Ground Connections

Electrical Grounding Requirements

Cabinet must have an uninterrupted ground for safety.

Motor Speed Selection

Minimum CFM and Speed

Ensure fan speed selected is not lower than minimum indicated CFM.

FY5 B Speed Selection

FB4 C Speed Selection

Refrigerant Tubing Connection and Evacuation

Tubing and Evacuation Requirements

Use accessory tubing, insulate suction line, evacuate to 500 microns.

Brazing Safety

Use a brazing shield to prevent damage to unit surface.

Evacuation Procedure

Evacuate coil and tubing system to 500 microns.

Refrigerant Flow-Control Device

FB4 C Piston Metering Device

FY5 B Metering Device

Piston Replacement

TXV Usage Caution

Condensate Drains

Downflow Conversion Drain Procedures

Special drain procedures for downflow conversion.

Start-Up Procedures and Care

Unit Component Hazard

Warning against operating unit without a filter.

Puron Refrigerant (R-410 A) Quick Reference

Puron Refrigerant Operating Pressures

Puron operates at higher pressures than R-22; use compatible equipment.

Refrigerant Handling and Safety

Guidelines for recovery, charging, hoses, leak detectors, and POE oils.

System Service Procedures

Procedures for opening system, recovering refrigerant, and evacuation.

Metering Device Requirements

Indoor coils must use hard-shutoff Puron refrigerant TXV.

Carrier fb4c Specifications

General

Brand	Carrier
Model	fb4c
Category	Air Conditioner
Language	English