First Co HBC (X) User Manual

Page 3

tions are complete the system must

be pressure tested. Repair any solder

joint leaks and gently tighten any leak-

ing valve packing nuts and piping ac-

cessories as required. Hydronic sys-

tems are not designed to hold pres-

surized air and should only be tested

with water.

PIPING INSULATION

After the system has been proven

leak free, all lines and valve control

packages must be insulated to pre-

vent condensate drippage or insu-

lated as specified on the building

plans.

Note: Many valve packages will not

physically allow all components to fit

over an auxiliary drain pan. It is the

installers responsibility to insulate all

piping to ensure adequate condensa-

tion prevention.

DUCT WORK

All duct work must be installed in

accordance with industry accepted

practices, and all applicable national

and local code requirements.

NOISE

These fan coil units are designed

for quiet operation, however, all air

conditioning equipment will transfer

some amount of noise to the condi-

tioned space. This should be taken

into consideration when planning the

location of the equipment.

MOUNTING

It is important to ensure that the fan

coils are securely mounted and the

structure is sufficient to support the

weight of the equipment. All anchors

for mounting the equipment must be

placed and sized to ensure a safe and

durable installation.

These units are provided with six

(6) mounting holes. Metal washers

and nuts of the proper size are to be

provided by the installer. When nec-

essary use shims to obtain the proper

level. This will ensure that the con-

densate will drain from the unit.

INSTALLATION

PRECAUTIONS

Installation of this equipment

should only be performed by properly

trained personnel to ensure proper

installation and the safety of the in-

staller. The following are some pre-

cautions to be followed for typical in-

stallations.

1. Always use proper tools and equip-

ment.

2. No wiring or other work should be

attempted without first ensuring that

the fan coil is completely discon-

nected from the power source and

locked out. Always verify that a good

ground connection exists prior to en-

ergizing any power sources.

3. Always review the nameplate on

each unit for proper voltage and con-

trol configurations. This information

is determined from the components

2-Way Motorized Valve Assemblies

1. The motorized valve assembly should be attached to

the supply header which is the connection nearest the air

outlet flange on the unit.

2. Prior to soldering the joints, operate all the hand valves

to ensure that the handles will fully open and close without

interference to other valves, ceiling, wall, plenum or other

accessories.

3. All valves will operate at any angle with the exception

of the motorized valve, which must never be installed with

the power head below horizontal. The actuator box

requires a 3/4" clearance for removal.

3-Way Motorized Valve Assembly

1. The 3-way valve assemblies will mount to the coil in

only one position. On four-pipe right hand systems a "B"

valve assembly is required for the chilled water connec-

tion and a "A" valve assembly is required for the hot water

connection. On left hand systems a "A" valve assembly is

required for the chilled water connection and the hot water

connection. (See figure1.)