substitution request - Alliance Construction Solutions

depending upon motor horsepower for establishing the specified CFM. Single phase motors shall
be capacitor start. The fan motor horsepower, voltage and frequency shall be as scheduled.
2.9 EVAPORATOR (DEHUMIDIFICATION) COIL
A. The coil shall be of adequate face area and rows to remove the specified amount of moisture
from the air stream at specified conditions.
B. The evaporator coil shall be constructed of aluminum fins mechanically bonded to copper tubes.
The fins shall be acrylic-coated for added corrosion protection.
2.10 AIR CONDENSER (AIR REHEAT) COIL
A. The coil shall be of sufficient size to reject the required amount of total heat.
B. The condenser coil shall be constructed of aluminum fins mechanically bonded to copper tubes.
The fins shall be acrylic-coated for added corrosion protection.
2.11 AUXILIARY AIR HOT WATER COIL
A. The hot water coil shall be factory mounted after the air reheat condenser coil. The installing
contractor shall install the control valve (by others) and pipe the hot water to the connections on
the outside of the unit. The control device for the valve must be interlocked with the terminal strips
in the unit.
B. Coil shall be constructed of aluminum fins mechanically bonded to copper tubes. The fins shall
be acrylic-coated for added corrosion protection.
2.12 WATER CONDENSER (POOL HEATING)
A. For recovering heat to pool water, the unit shall be equipped with a vented refrigerant-to-water,
helically wound coaxial vented condenser sized to reject the required amount of heat. The water
side tubing shall be constructed of cupronickel for corrosion protection. The maximum water
pressure drop shall be as scheduled.
2.13 CONTROL PANEL
A. The control panel shall have a 4 line, 20 character LCD display, LED annunciators, and a 6
button operator interface. The controller main board shall have all set points and program
information stored in nonvolatile memory for protection from power failure.
B. The control panel shall be wall or unit mounted. It shall be capable of being mounted up to 1000
feet from the unit. All internal circuit boards shall be conformal coated. The control panel shall be
connected to the unit by standard six wire RJ-25 phone cord. The control panel shall be capable
of being directly connected to the unit for service convenience.
C. The controller shall be micro-processor based. The following set points shall be programmable at
the panel:
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
23 8416 - 5 MECHANICAL DEHUMIDIFICATION
UNITS