Bryant 535BNC024 Installation, Start-Up And Service Instructions Manual

installdf^n, start-up and
service instructions
UNDER CEILING FAN COIL UNITS
Cancels; New
619C
Sizes 024-048
2 to 4 Tons
II 619C-24-1
7/1/92
CONTENTS
Page
SAFETY CONSIDERATIONS.1
INSTALLATION.1-9
I. Complete Pre-Installation Checks .2
II. Select Location.3
III. Mount Unit.3
IV. Connect Refrigerant Piping.3
V. Connect Condensate Drain Line .5
Vi. Make Electrical Connections.
8
VM. Install Control.
8
VIII. Connections to Outdoor Unit.9
START-UP.9-12
I. After Extended Shutdown .9
II. Seasonal Changeovers.9
III. Adjusting Airflow.11
IV. Operating Mode Memory.11
V. Automatic Operation (Auto.) Mode.11
VI. Operating Fault Diagnosis.11
VII. Operation of Microprocessor Control.11
CLEANING AND MAINTENANCE.12,13
SERVICE.14
TROUBLESHOOTING .14-17
NOTE: Detailed controls, service, and troubleshooting
information is in a separate manual, available from your
distributor.
SAFETY CONSIDERATIONS
Installing and servicing air conditioning equipment can be
hazardous due to system pressure and electrical compo¬
nents. Only trained and qualified service personnel should
install or service air conditioning equipment.
Untrained personnel can perform basic maintenance, such as
cleaning and replacing filters. All other operations should be
performed by trained service personnel. When working on air
conditioning equipment, observe precautions in literature, tags,
and labels attached to unit.
Follow all safety codes. Wear safety glasses and work gloves.
Use quenching cloth for brazing operations. Have fire extin¬
guisher available. Read these instructions thoroughly. Con¬
sult local building codes and National Electrical Code (NEC)
for special installation requirements.
INSTALLATION
The 619C under ceiling fan coil unit is installed with the 700C
outdoor condensing unit, or the 705C heat pump (Fig. 1). Re¬
fer to Table 1 to make sure the correct indoor unit is in¬
stalled with the correct outdoor unit.
Table 1 - System Combinations for Indoor
and Outdoor Units
SPLIT
INDOOR OUTDOOR
SYSTEM UNIT UNIT
Under Ceiling Cooling Only System
535BNC024
619CNX0240E0 700CNX024
535BNC036
619CNX0360E0 700CNX036
535BNC048
619CNX0480E0
700CNX048
Under Ceiling Heat Pump System
635ANC024
619CNX0240W0
705CNX024000
635ANC036
619CNX0360W0 705CNX036000
635ANC048
619CNX0480W0 705CNX048000
Installation instructions for 619C fan coils are contained in
this manual. Refer to this manual for proper installation of
the complete system. Note that the 700C and 705C outdoor
units are shipped with installation and service instructions
for basic installation of the outdoor section.
Be sure the unit will be operated within the application guide¬
lines shown in Table 2. When installing the 700C or 705C
unit, it is important to note that for cooling operation when ,
the outside air temperature is below 55 F, it is necessary to
equip the outdoor unit with the low-ambient control
accessory.