Carrier FB4CSL Installation Instructions Manual

en
FB4C(S,Q)L
Fan Coil Units for R-401A Refrigerant
SIZES 018 TO 060, 50Hz
NOTE: Read the entire instruction manual before starting the
installation.
Fig. 1 - Typical Unit

Table of Contents

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Refrigerant Tubing Connection and Evacuation . . . . . . . . . . . . . . 7
Refrigerant Flow-Control Device . . . . . . . . . . . . . . . . . . . . . . . . . 7
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Condensate Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Start-Up Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
AIRFLOW PERFORMANCE TABLES. . . . . . . . . . . . . . . . . . . 11
AIRFLOW PERFORMANCE TABLES (cont.) . . . . . . . . . . . . . 12
R- 410A QUICK REFERENCE GUIDE. . . . . . . . . . . . . . . . . . . 22

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 the kits or accessories
when installing.
Follow all safety codes. Wear safety glasses, protective clothing, and
work gloves. Use quenching cloth for brazing operations. Have fire
extinguisher available. Read these instructions thoroughly and follow all
warning or cautions included in literature and attached to the unit.
Installation Instructions
A02332A
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 C22.1.
Recognize safety information. When you see this symbol
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 suggestions which will
result in enhanced installation, reliability, or operation.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Before installing or servicing system, always turn off main power to
system. There may be more than one disconnect switch. Tag disconnect
switch with a suitable warning label. Turn off accessory heater power if
applicable.
!
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.
!
HOT TUBE WARNING
Failure to follow this caution could result in personal injury and/or
property damage.
Refrigerant lines can reach or exceed 130 °F (54 °C). Avoid contact
with the vapor header or vapor line, especially in Heating Mode.

Introduction

FB4C models are R- 410A Fan Coils designed for installation flexibility.
These units are designed to meet the low air leak requirements currently
in effect.
A TXV is used on FB4C(S,Q)L. This valve is a bleed- through type and
adjustable (if necessary). All FB4C fan coils use a multi- tap ECM motor
for efficiency. These units have been designed for upflow, downflow (kit
required), and horizontal orientations.
CAUTION
CAUTION
on the unit