Manual
2100-522B
Page
21 of 38
LOW VOLTAGE CONNECTIONS
FOR DDC CONTROL
Fan Only
Energize G
Cooling Mode
Energize Y1, G
1st Stage Heating
Energize G, W1
2nd State Heating
Energize G, W2
(if employed)
Ventilation
Energize G, F
GENERAL
This unit is equipped with a variable speed ECM motor.
The motor is designed to maintain rated airflow up to
the maximum static allowed.
It is important that the
blower motor plugs are not plugged in or unplugged
while the power is on. Failure to remove power prior
to unplugging or plugging in the motor could result in
motor failure.
CAUTION
Do not plug in or unplug blower motor
connectors while the power is on.
Failure to do so may result in motor failure.
LOW VOLTAGE CONNECTIONS
These units use a grounded 24 volt AC low voltage
circuit.
The
“R”
terminal is the
hot
terminal and the
“C”
terminal is
grounded.
“G”
terminal or pin 6 of P2 is the
fan input
. If the
climate control option is abandoned and connections are
made directly to P2 pin 6 of P2 must be energized for
proper operation.
“Y1”
terminal or pin 7 of P2 is the
compressor input
.
“W1”
terminal or pin 8 of P2 is the
fist stage heat.
“R”
terminal or pin 10 of P2 is
24 VAC hot
.
“C”
terminal or pin 11 of P2 is
24 VAC grounded.
“L”
terminal or pin 12 of P2 is
compressor lockout
output.
This terminal is activated on a high or low
pressure trip by the electronic heat pump control. This
is a 24 VAC output.
“W2”
terminal or pin 9 of P2 is
second stage heat
(if
equipped). If the unit is equipped with an optional hot
water coil plenum box or electric heat these will be
energized by this terminal.
“F”
terminal of pin 5 of P2 is the
ventilation input
.
This terminal energizes any factory installed ventilation
option.
NOTE: For total and proper control using DDC, a total
of 5 controlled outputs are required (4 if no
ventilation system is installed).
Содержание Q-TEC Q24A1
Страница 7: ...Manual 2100 522B Page 7 of 38 FIGURE 1 UNIT DIMENSIONS...
Страница 10: ...Manual 2100 522B Page 10 of 38 FIGURE 6 DUCTEDAPPLICATION FIGURE 5 INSTALLATION WITH FREE BLOW PLENUM...
Страница 14: ...Manual 2100 522B Page 14 of 38 MIS 2469 DRAIN BOX WALL SLEEVE OVERFLOW TUBE CAULK AROUND TUBE FIGURE 12A...
Страница 16: ...Manual 2100 522B Page 16 of 38 REMOVE KNOCK OUT FOR INDOOR DRAIN HOSE CONNECTOR MIS 2471 FIGURE 12C If Used...
Страница 32: ...Manual 2100 522B Page 32 of 38 FIGURE 21 FRESH AIR DAMPER REMOVAL MOUNTING SCREW...