Specification Sheet

24
GUIDE SPECIFICATIONS
INDOOR DUCTED SLIM DUCTLESS UNITS
Size Range: 1/4 to 5 Ton Nominal Cooling and Heating Capacity
Model Number: 40MBDQ
PART 1 − GENERAL
1.01 System Description
Indoor, slim ducted, direct−expansion fan coils are matched with a
heat pump outdoor unit.
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 stored and handled per unit the manufacturer’s
recommendations.
1.04 Warranty (For Inclusion By Specifying
Engineer)
PART 2 − PRODUCTS
2.01 Equipment
A. General:
Indoor, direct−expansion, ceiling−mounted fan coil. The unit is
complete with cooling/heating coil, fan, fan motor, piping
connectors, electrical controls, microprocessor control system, and
integral temperature sensing.
B. Unit Cabinet:
Unit cabinet is constructed of galvanized steel. The cabinet is fully
insulated for improved thermal and acoustic performance.
C. Fans:
The fan is tangential direct−drive blower type with air intake at the
rear or bottom of the unit and discharge at the front.
D. Coil:
The coil is a copper tube with aluminum fins and galvanized steel
tube sheets. The fins are bonded to the tubes by mechanical
expansion and specially golden hydrophilic pre−coated for
enhanced wet−ability. A drip pan under the coil has a factory
installed condensate pump and drain connection for hose
attachment to remove condensate.
E. Motors:
The motors has an open drip−proof, permanently lubricated ball
bearing with inherent overload protection. Fan motors are 3−speed.
F. Controls:
The controls consist of a microprocessor−based control system
which controls the space temperature, determines optimum fan
speed, and runs self diagnostics. The temperature control range is
62_F to 86_F (17_C to 30_C) in increments of 1_F or 1_C, and
has a 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:
1. An automatic restart after power failure at the same
operating conditions as at failure.
2. A timer function to provide a minimum 24−hour timer
cycle for system Auto Start/Stop.
3. Temperature−sensing controls sense return air temperature.
4. Indoor coil freeze protection.
5. Wireless infrared remote control to enter set points and
operating conditions.
6. Dehumidification mode provides increased latent removal
capability by modulating system operation and set point
temperature.
7. Fan−only operation to provide room air circulation when no
cooling is required.
8. Diagnostics provide continuous checks of unit operation
and warn of possible malfunctions. Error messages appear
on the unit.
9. The fan speed control is user−selectable: high, medium,
low, or microprocessor controlled automatic operation
during all operating modes.
10. Automatic heating−to−cooling changeover in heat pump
mode. The control includes deadband to prevent rapid mode
cycling between heating and cooling.
11. Indoor coil high temperature protection is provided to detect
an excessive indoor discharge temperature when unit is in
the heat pump mode.
G. Electrical Requirements:
The indoor fan motor operates on 208−230V. Power is supplied
from the outdoor unit.
H. Operating Characteristics:
The 40MBDQ system has a minimum SEER (Seasonal Energy
Efficiency Ratio) and HSPF at AHRI conditions, as listed on the
specifications table.
I. Refrigerant Lines:
All units have refrigerant lines that can be oriented to connect from
the side of the unit. Both refrigerant lines need to be insulated.
Copyright 2018 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 . Edition Date: 09/18
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No: 40MBDQ-03PD
Replaces: 40MBDQ-02PD