15671-2
DUCTLESS SPLIT SYSTEM HEAT PUMP UNITS
b. The compressor shall be driven by inverter circuit to control compressor
speed. The compressor speed shall dynamically vary to match the room
load for significantly increasing the efficiency of the system which shall
result in significant energy savings.
c. The unit shall have an accumulator and high pressure safety switch.
d. The compressor shall be mounted to avoid the transmission of vibration.
Outdoor Coil:
a. The condenser coil shall be of copper tubing with flat aluminum. The coil
shall be protected with an integral metal guard.
Refrigerant Components:
a. Refrigerant circuit components shall include brass external liquid line
service valve with service gauge port connections, suction line service
valve with service gage connection port, service gage port connections on
compressor suction and discharge lines with Schrader type fittings with
brass caps, accumulator, reversing valve.
b. All refrigerant lines between outdoor and indoor units shall be of annealed,
refrigeration grade copper tubing, ARC Type, meeting ASTM B280
requirements, individually insulated in twin-tube, flexible, closed-cell,
CFC-free (ozone depletion potential of zero), elastomeric material for the
insulation of refrigerant pipes and tubes with thermal conductivity equal
to or better than 0.27 BTU-inch/hour per sqft / °F, a water vapor
transmission equal to or better than 0.08 Perm-inch and superior fire
ratings such that insulation will not contribute significantly to fire and up
to 1" thick insulation shall have a Flame-Spread Index of less than 25 and
a Smoke-development Index of less than 50 as tested by ASTM E 84 and
CAN / ULC S-102.
Safeties:
Operating safeties shall be factory selected, assembled, and tested. The
minimum functions shall include the following:
a. Compressor discharge over temperature protection.
b. System low voltage protection.
c. Compressor overload protection.
d. Compressor over current protection.
e. IPM module protection.
Electrical Requirements:
a. Power for the indoor unit shall be supplied from the outdoor unit.
b. Unit electrical power shall be a single point connection.
c. All power and control wiring must be installed per NEC and all local
electrical codes.
d. Units shall have high and low-voltage terminal block connections.
BB. Fan Coil Unit
l.
Unit Cabinet:
The cabinet shall be formed from high strength molded plastic with smooth
finish, flat front panel design with access for filter. Cabinet color shall be white
- Munsell 1.0Y 9.2/0.2. The unit shall be wall mounted by means of a factory
supplied, pre-drilled, mounting plate.
13089K
