35
GUIDE SPECIFICATIONS
IN--CEILING CASSETTE
DUCT--FREE UNITS
Carrier Model Number: 40KMC/40KMQ
Size Range: 1--1/2 to 3 Ton Nominal Cooling Capacity
1--1/2 to 3 Ton Nominal Heating Capacity
PART 1 -- GENERAL
1.01 System Description
Indoor, in--ceiling mounted, direct--expansion fan coils are matched
with cooling only or heat pump outdoor unit .
1.02 Agency Listings
Unit shall be rated per ARI Standards 210/240 and listed in the
ARI directory as a matched system. Units shall be certified by UL
and CSA.
1.03 Delivery, Storage, And Handling
Units shall be stored and handled per unit manufacturer’s
recommendations.
1.04 Warranty
1--year parts limited warranty.
PART 2 -- PRODUCTS
2.01 Equipment
A. General:
Indoor, direct--expansion, low profile (12 in./ 304.8 mm) in--ceiling
fan coil. Unit shall be complete with cooling/heating (heat pump
systems only) coil, fan, fan motor, piping connectors, condensate
pump, and hanging brackets.
B. Unit Cabinet:
Cabinet shall be constructed of zinc--coated steel. Fully insulated
discharge and inlet grilles shall be attractively styled, high--impact
polystyrene.
Grille shall have hinges and can be opened to obtain access to the
cleanable filters, indoor fan motor and control box. Adjacent room
cooling as well as fresh air intake shall be provided by simple
knock--outs in a cabinet side panel.
C. Fans:
1. Fan shall be centrifugal direct--drive blower type with air
intake in the center of the unit and discharge at the
perimeter. Automatic, motor--driven vertical air sweep shall
be provided standard. Automatic motor--driven louvers
shall be provided standard and shall be adjustable for 2, 3 or
4--way discharge.
2. Air sweep operation shall be user selectable.
D. Coil:
Coil shall be copper tube with aluminum fins and galvanized steel
tube sheets. Fins shall be bonded to the tubes by mechanical
expansion and specially coated for enhanced wet--ability. A drip
pan under the coil shall have a factory installed condensate pump
and drain connection for hose attachment to remove condensate.
E. Motors:
Motors shall be open drip--proof, permanently lubricated ball
bearing with inherent overload protection. Fan motors shall be
3--speed.
F. Controls:
Controls shall consist of a microprocessor--based control system
which shall control space temperature, determine optimum fan
speed, and run self diagnostics. the temperature control range shall
be from 62_Fto84_F (16.67_C to 28.89_C).
User interface with the unit shall be accomplished through an
accessory wireless remote control (can be configured for _For_C),
or an accessory wired controller or an accessory Zone Manager.
User interface with unit shall be accomplished through either a
wireless remote control or a wired control or zone manager.
The unit shall have 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 shall sense return air
temperature.
4. Indoor coil freeze protection.
5. Automatic air sweep control to provide on or off activation
of air sweep louvers.
6. Dehumidification mode shall provide 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 shall provide continuous checks of unit
operation and warn of possible malfunctions. Error
messages shall be displayed at the unit.
9. Fan speed control shall be user--selectable: high, medium,
low, or microprocessor controlled automatic operation
during all operating modes.
10. Automatic heating--to--cooling changeover in heat pump
mode. Control shall include deadband to prevent rapid
mode cycling between heating and cooling.
11. Indoor coil high temperature protection shall be provided to
detect excessive indoor discharge temperature when unit is
in heat pump mode.
12. Cold blow prevention on heat pump units.
13. Automatic compensation for air stratification on heat pump
units.
G. Filters:
Unit shall have filter track with factory--supplied cleanable filters.
H. Electric Heat
40KMQ units shall have 3kw electric heaters factory installed to
supplement the heating capacity by heat pump when required
I. Electrical Requirements:
Indoor units shall be 208/230--1--60 and require their own power
supply. Units with electric heat shall be single power supply. Only
control wiring shall run between the indoor and outdoor units.
J. Operating Characteristics:
The 40KMC/KMQ, when matched with the appropriate outdoor
section, shall have a minimum listed SEER (seasonal energy
efficiency ratio) of 13 at ARI conditions, and a minimum HSPF of
7.7.
K. Special Features (Accessories):
1. User Interface can be accomplished with:
-- Wireless controller
-- Wired control shall be capable of controlling one unit or
up to six units daisy--chained together.
-- Zone controller
The zone control can provide the capability of connectingupto32
units into one or up to 8 independent zones. Each zone can be
programmed for 7 days with each day having up to 4 periods.
2. Power ventilation kit shall be available to allow up to 20%
outside air to be provided.
4QKMC, KMQ / 38HDF, QRF
To Next Page
Loading...
