Trane INTELLIPAK ™ ™ ™ ™ ™ Commercial Single-Zone Rooftop Air Conditioners with CV or VAV Control - Manual (Page 12)

12
General Information (Continued)
Space Temperature Averaging
Space temperature averaging for Constant Volume applica-
tions is accomplished by wiring a number of remote sensors
in a series/parallel circuit.
The fewest number of sensors required to accomplish
space temperature averaging is four. Figure 8 illustrates a
single sensor circuit (Single Zone), four sensors wired in a
series/parallel circuit (Four Zone), nine sensors wired in a
series/parallel circuit (Nine Zone). Any number squared, is
the number of remote sensors required.
Wiring termination will depend on the type of remote panel
or control configuration for the system. Refer to the wiring
diagrams that shipped with the unit.
Space Temperature Averaging with Multiple Sensors
Unit Control Modules (UCM)
Unit control modules are microelectronic circuit boards de-
signed to perform specific unit functions. These modules
through Proportional/Integral control algorithms provide the
best possible comfort level for the customer. They are
mounted in the control panel and are factory wired to their
respective internal components. They receive and interpret
information from other unit modules, sensors, remote pan-
els, and customer binary contacts to satisfy the applicable
request for economizing, mechanical cooling, heating, and
ventilation. Figure 9 below illustrates the typical location of
each "1U" designated module.
Control Module Locations for S_HF 20 & 25 Ton Units
RTM RTM
1U48
1U48
J1-1 J1-1
J2-1 J2-1
SCM SCM
1U49
1U49 Bracke Bracket
Heat MOD Heat MOD
1U50
1U50
Mounting Mounting
Plate
Plate
LCI MOD LCI MOD
1U54
1U54
TCI MOD TCI MOD
1U54
1U54
Bracke Bracket
J2-1 J2-1
J1-1 J1-1
OR OR
1PCB MOD 1PCB MOD
1U55
1U55
ECEM ECEM
1U52
1U52
VOM VOM
1U53
1U53
GBAS MOD GBAS MOD
1U51
1U51
J1-1 J1-1
J2-1 J2-1
1TB9 1TB9
J2-1 J2-1
J1-1 J1-1
J2-1 J2-1
J1-1 J1-1
J2-1 J2-1
J1-1 J1-1
J1-1 J1-1
J2-1 J2-1
Bracke Bracket
Bracke Bracket
Bracke Bracket
Bracke Bracket
Mounting Mounting
Plate
Plate
Mounting Mounting
Plate
Plate
Control Module Locations for S_HF 30 Ton Units
RTM RTM
1U48
1U48
J1-1 J1-1
J2-1 J2-1
SCM SCM
1U49
1U49
GBAS MOD GBAS MOD
1U51
1U51
J2-1 J2-1
J1-1 J1-1
Bracke Bracket
Bracke Bracket
Bracke Bracket
Bracke Bracket
Bracke Bracket
Bracke Bracket
VOM VOM
1U53
1U53
Mounting Mounting
Plate
Plate
J1-1 J1-1
J2-1 J2-1
Heat MOD Heat MOD
1U50
1U50
Mounting Mounting
Plate
Plate
LCI MOD LCI MOD
1U54
1U54
TCI MOD TCI MOD
1U54
1U54 OR OR
1PCB MOD 1PCB MOD
1U55
1U55
ECEM ECEM
1U52
1U52
J1-1 J1-1
1TB9 1TB9
J2-1 J2-1
J1-1 J1-1
J2-1 J2-1
J1-1 J1-1
J1-1 J1-1
J2-1 J2-1
J2-1 J2-1