Control Wiring; Thermostat Location; Location Of Static Pressure Readings - Lennox KGB024 Installation Instructions Manual

CONTROL WIRING

A-Thermostat Location
Room thermostat mounts vertically on a standard 2" X 4"
handy box or on any non-conductive flat surface.
Locate thermostat approximately 5 feet (1524mm)
above the floor in an area with good air circulation at
average temperature.
thermostat where it might be affected by:
-drafts or dead spots behind doors and in corners
-hot or cold air from ducts
-radiant heat from sun or appliances
-concealed pipes and chimneys
B-Control Wiring
1- Route thermostat cable or wires from subbase to
control area above compressor (refer to unit
dimensions to locate bottom and side power entry).
IMPORTANT - Unless field thermostat wires are rated
for maximum unit voltage, they must be routed away
from line voltage wiring. Use wire ties located near the
lower left corner of the controls hat section to secure
thermostat cable.
Use18 AWG wire for all applications using remotely
installed electro-mechanical
thermostats.
2- Install thermostat assembly in accordance with
instructions provided with thermostat.
INSTALLATIONS WITH DUCTWORK
ROOFTOP UNIT
RE­
SUPPLY
TURN
MAIN
DUCT RUN
KG/KC 024, 030, 036, 048, 060, 072, 074, 090
Avoid locating the room
and electronic

LOCATION OF STATIC PRESSURE READINGS

RETURN AIR
READING LOCATION
FIRST BRANCH
OFF OF MAIN RUN
SUPPLY AIR
READING
LOCATION
3- Connect thermostat wiring to TB1 terminal board on
the lower side of the controls hat section. Wire as
shown in figure 14 for electro-mechanical and
electronic thermostats. If using other temperature
control devices or energy management systems see
instructions and wiring diagram provided by
manufacturer.
24 VOLT FIELD WIRING WITH ELECTRONIC AND
ELECTRO-MECHANICAL THERMOSTATS
A2 THERMOSTAT
Note - On electro-mechanical thermo­
stats set anticipator at 0.1 amps.
IMPORTANT-Terminal connections at the wall plate or
subbase must be made securely. Loose control wire
connections may allow unit to operate but not with proper
response to room demand.
INSTALLATIONS WITH CEILING DIFFUSERS
ROOFTOP UNIT
SUPPLY AIR
READING
LOCATION
FIGURE 15
Page 10
TB1
NOT ALL TERMINALS
ARE FOUND ON ALL
THERMOSTATS
Jumper terminals R and
OC when thermostat has
no night setback terminals.
FIGURE 14
RETURN AIR
RE­
SUPPLY
TURN
DIFFUSER
READING
LOCATION