McQuay Remington PTAC Series Installation & Maintenance Data page 5

Packaged terminal air conditioners and heat pumps
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Dip SWI #1–#8
#1–#4 = Temperature Limiting – see chart, page 4.
#5–#6 = Outdoor coil temperature when unit will change from
reverse cycle heating to electric.
#5-OFF & #6-OFF = 15
o
F (factory setting)
#5-ON & #6-OFF = 10
o
F
#5-ON & #6-ON = 5
o
F
#7-OFF = Normal HP operation, ON = electric heat only.
#8-OFF = Constant indoor fan, ON = Cycle
Dip SW2 #1–#4
#1-OFF = Control pad activated, ON = 24V wall stat activated.
#2-OFF = Room temperature sensor on chassis, ON = sensor
on control pad.
#3-OFF = Motion & Door sw. activated, Timer & Sleep deacti-
vated.
#4-OFF = Room freeze protection is activated, ON = deacti-
vated.
NOTE: All dip switches ship from factory in the OFF posi-
tion except #8 of 8 and #3 of 4 which are shipped turned
ON. Any switch changes must be followed by unplugging
and plugging in the power cord to activate the change.
Quick Heat & Cool – This feature provides extra comfort for
the occupant during start up of an unconditioned space. When
off for more than 2 hours, the unit setting will automatically
raise 2
o
F in Heat or drop 2
o
from the cold or warm walls, ceiling and floor. The 2
maintained for the first cycle only. After that, the setting re-
verts to that shown on the digital display.
NOTE: Timer & Sleep features require the use of an
optional control pad to replace the standard one.
These may be ordered from your sales representative.
Timer (activated by dip switch #3 of 4 turned ON)
the unit off, press the TIMER key repeatedly to select the num-
ber of hours (1-15) after which the unit will turn off. To turn the
unit on, preset the unit controls to the desired mode and tem-
perature you want, then turn it off. Press the TIMER key re-
peatedly to select the number of hours (1-15) after which the
unit will turn on.
Sleep – (enable by dip switch #3 of 4 turned ON)
SLEEP key to activate this function. In the heat mode, over a
two-hour period, the unit temperature setting will gradually
o
drop 5.4
F. In cooling, over a two-hour period, the unit tem-
perature setting will gradually raise 3.6
ing the SLEEP key, the setting will return to that shown on the
display.
Motion Sensor & Door Switch – (activate by dip switch #3 of
4 turned ON)
Two receptacles under metal cover on front of
control box, provide connections for motion sensor and door
switch by others. Two plug and wire assemblies are included
with each chassis to match the receptacles. Connect recep-
tacle CN7 to motion sensor and CN4 to door switch.
F in Cool to offset the radiation felt
o
F offset is
Press the
o
F. Six hours after press-
While room is occupied, the motion sensor keeps the control
"normal" so the occupant has full control of the unit. Fifteen
minutes after the occupant leaves the room, the unit goes into
memory P2. 14 hours later, if no one has entered the room,
the unit goes into memory P1. Both P1 and P2 can be pro-
grammed for temperature and mode by using a G11 hand
held remote controller available from your sales
representative.
Programming P1 using the G11 control – press and hold
the
button for 3 seconds until P1 starts flashing on the G11
display. While P1 is still flashing, press the buttons to select
temperature and mode for P1. Wait until P1 stops flashing,
then press and release
the unit control. P1 will flash on the unit display to show it was
accepted.
Programming P2 using the G11 control – press and hold
button for 3 seconds until P1 starts flashing. While P1 is still
flashing, press and release the
ing. While P2 is still flashing, select temperature and mode
desired for P2. Wait until P2 has stopped flashing, then press
and release
program to the unit control. P2 will flash on the unit display to
show it was accepted.
Control Lockout
feature to discourage anyone from changing the mode, tem-
perature or fan speed. To activate this lockout, press and hold
the unit FAN key for 10 seconds until LO shows on display. To
unlock the control, press and hold the FAN key for 10 sec-
onds until UL shows.
Remote Wall Thermostat
Location
Remove the control pad from the unit by unsnap-
To turn
ping it from its base and unplugging it from the LH receptacle
on the control box front. The snap-in decorative cover (or-
dered separately) now mounts in place of the control pad. To
modify the controls for Remote Wall Thermostat, slide dip
switch #1 of 4 to ON. Also, unplug the power cord from the
receptacle and plug back in again to reset the circuit. Four to
seven low-voltage wires, as determined by the wall thermo-
stat selected, connect to the 7 pin receptacle on the control
box front using the plug and wire assembly provided. Mount
the thermostat on an inside wall but not in the unit discharge
air stream.
Operation
R, W, Y, and G terminals plus C if it requires 24V AC power
from the unit. By using all 7 low voltage connections, wall stats
with 2 stage heat & fan speed selection can also be used.
They can be MCO, ACO, MCO/ACO or programmable. With
the exception of "wired Remote ON/OFF", the control fea-
tures listed for the standard control pad will not be available
with the wall thermostat unless the wall stat chosen includes
them. Low fan speed is standard for stats without speed
selection.
button to send the P1 program to
button again to start P2 flash-
button twice in rapid succession to send the P2
The unit control has an electrical lockout
The 24V wall thermostat should have the normal
IM 812 / Page 5 of 24

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