Product data

35
GUIDE SPECIFICATIONS
INDOOR WALL--MOUNTED DUCTLESS UNITS
Size Range: 3/4 to 2 T on Nominal Cooling and Heating Capacity
Carrier Model Number: 40MAQ
PART1–GENERAL
1.01 System Description
Indoor, wall-mounted, direct expansion fan coils are matched with
heat pump outdoor units.
1.02 Agency Listings
Unit is rated per AHRI Standards 210/240 and listed in the AHRI
directory as a matched system.
1.03 Delivery, Storage, And Handling
Units are shipped in one piece and are stored and handled per the
manufacturer’s recommendations.
1.04 Warranty (For Inclusion B y Specifying
Engineer)
PART 2 – PRODUCTS
2.01 Equipment
A. General:
Indoor, direct-expansion, wall-mounted fan coil. The unit is
complete with cooling/heating coil, fan, fan motor, piping
connectors, electrical controls, microprocessor control system, and
integral temp erature sensing. The unit is furnished with integral
wall mounting bracket and mounting hardware.
B. Unit Cabinet:
Cabinet discharge and inlet grilles shall be attractively styled,
high-impact polystyrene. The cabinet is fully insulated for
improved thermal / acoustic performance.
C. Fans:
1. The fan is tangential direct-drive blower type with air intake
at the top of the unit and discharge at the bottom front. An
automatic, motor-driven vertical air sweep is provided
standard.
2. The air sweep operation is useable selectable. The vertical
sweep may be adjusted (using the remote control) and the
horizontal air direction maybe be set manually.
D. Coil:
The coil is a copper tube with aluminum fins and galvanized steel
tube sheets. Fins are bonded to the tubes by mechanical expansion
and blue hydrophilic pre--coated for enhanced wet-- ability. A drip
pan under the coil has a drain connection for a hose attachment to
remove condensate. The condensate pan has an internal trap.
E. Motors:
Motors are totally enclosed, permanently lubricated ball bearing
with inherent overload protection. The fan motors are 3-- speed.
F. Controls:
The controls consist of a microprocessor--based control system
which controls space temperature, determines optimum fan speed,
and runs self diagnostics. The temperature control range is 62_Fto
86_F(17_Cto30_C) in increments of 1_For1_C, and has 46_F
Heating Mode (Heating Setback). The wireless remote controller
can act as the temperature sensing location for room comfort.
The unit has the following functions as a minimum:
S An automatic restart after power failure at the same
operating conditions as at failure.
S A timer function to provide a minimum 24--hour timer
cycle for system Auto Start/Stop.
S Temperature--sensing controls senses the return air
temperature.
S Indoor coil freeze protection.
S Wireless infrared remote control to enter set points and
operating conditions.
S Automatic air sweep control to provide on or off
activation of air sweep louvers.
S Dehumidification mode provides increased latent
removal capability by modulating system operation and
set point temperature.
S Fan--only operation to provide room air circulation when
no cooling is required.
S Diagnostics provide continuous checks of unit operation
and warn of possible malfunctions. Error messages
appear on the unit.
S The fan speed control is user--selectable: turbo, high,
medium, low, or microprocessor controlled automatic
operation during all operating modes.
S Automatic heating--to--cooling changeover in heat pump
mode. Control includes deadband to prevent rapid mode
cycling between heating and cooling.
S Indoor coil high temperature protection is provided to
detect excessive indoor discharge temperature when the
unit is in heat pump mode.
G. Filters:
Units have a filter track with factory-supplied cleanable filters.
H. Electrical Requirements:
The indoor fan motor operates on 208--230V. Power is supplied
from the outdoor unit.
I. Operating Characteristics:
The system has a minimum SEER (Seasonal Energy Efficiency
Ratio) and HSPF at AHRI conditions, as listed on the
specifications table.
J. Refrigerant Lines:
All units should have refrigerant lines that can be oriented to
connect from the left, right or back of unit. Both refrigerant lines
need to be insulated.
K. Special Featur es (Field Installed):
1. Condensate Pump:
The condensate pump removes condensate from the drain
pan when gravity drainage cannot be used. The pump is
designed for quiet operation. The pump consists of two
parts: an internal reservoir/sensor assembly, and a remote
sound--shielded pump assembly. A liquid level sensor in the
reservoir stops the cooling operation if the liquid level in the
reservoir is unacceptable.