Specifications

GUIDE SPECIFICATIONS— 619E HIGH WALL UNITS
COMMERCIAL HIGH WALL FAN COIL UNITS
HVAC GUIDE SPECIFICATIONS
SIZE RANGE:
3
⁄ 4 TO 2 TONS COOLING CAPACITY
9000 TO 21,400 BTUH HEATING CAPACITY
MODEL NUMBER: 619E
PART 1 — GENERAL
1.01 SYSTEM DESCRIPTION
Indoor, wall-mounted, direct-expansion fan coil to be
matched with the commercial condensing or heat pump
units.
1.02 QUALITY ASSURANCE
Unit shall be rated per ARI Standards 210/240 and listed
in the ARI directory as a matched system.
1.03 DELIVERY, STORAGE, AND HANDLING
Units shall be stored and handled per unit manufacturer’s
recommendations.
1.04 WARRANTY (For Inclusion By Specifying Engineer).
PART 2 — PRODUCTS
2.01 EQUIPMENT
A. General:
Indoor, direct-expansion, wall-mounted fan coil. Unit shall
be complete with cooling/heating coil, fan, fan motor, pip-
ing connectors, electrical controls, microprocessor control
system, and integral temperature sensing. Unit shall be
furnished with integral wall-mounting bracket, mounting
hardware, and thermistor interconnection cable (size 009-
024 high wall systems).
B. Unit Cabinet:
Cabinet discharge and inlet grilles shall be attractively
styled, high-impact polystyrene. Cabinet shall be fully
insulated for improved thermal and acoustic performance.
C. Fans:
1. Fan shall be tangential direct-drive blower type with air
intake at the upper front face of the unit and discharge
at the bottom front. Automatic, motor-driven vertical air
sweep shall be provided standard.
2. Air sweep operation shall be user selectable. Horizon-
tal direction may be manually adjusted (using remote
controller) and vertical air sweep may be manually set.
D. Coil:
Coil shall be copper tube with aluminum fins and galva-
nized steel tube sheets. Fins shall be bonded to the tubes
by mechanical expansion. A drip pan under the coil shall
have a drain connection for hose attachment to remove
condensate. Condensate pan shall have internal trap and
auxiliary drip pan under coil header.
NOTE: The units use the accessory AccuRaterT piston
refrigerant metering device in the indoor unit (for cooling)
and at the outdoor unit liquid line service valve for
heating.
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 tem-
perature control range shall be from 64 F to 84 F. 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. Indoor-air high discharge temperature
shutdown shall be provided.
4. Indoor coil freeze protection.
5. Wireless infrared remote control to enter set points
and operating conditions.
6. Auto Stop features shall have integral setback
control.
7. Automatic airsweep control to provide on or off acti-
vation of airsweep louvers.
8. Dehumidification mode shall provide increased latent
removal capability by modulating system operation
and set point temperature.
9. Fan-only operation to provide room air circulation
when no cooling is required.
10. Diagnostics shall provide continuous checks of unit
operation and warn of possible malfunctions. Error
messages shall be displayed at the unit and at the
remote controller.
11. An indoor to outdoor thermistor connection cable
shall be provided with the fan coil unit.
12. Fan speed control shall be user-selectable: high,
medium, low, or microprocessor automatic operation
during all operating modes.
13. A time delay shall prevent compressor restart in less
than 3 minutes.
14. Automatic heating-to-cooling changeover to provide
automatic heating and cooling operation. Control
shall include deadband to prevent rapid mode
cycling.
15. Demand defrost shall be provided and shall minimize
defrost cycles by internally adjusting defrost timing
based on frost accumulation.
16. Indoor coil high temperature protection shall be pro-
vided to detect excessive indoor discharge tempera-
ture when unit is in heat pump mode.
G. Filters:
Unit shall have filter track with factory-supplied cleanable
filters.
H. Electrical Requirements:
Unit shall operate on 115 v (009), 208-v (012-024), or
230-v (012-024), 60 Hz power supply as specified on the
equipment schedule. Power and control connections shall
have terminal block connections.
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