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036-21476-002-E-0904
Unitary Products Group
35
1.
The 2” space between the ducts allows for “jumping” an
existing roof joist.
2.
The 58-1/2” overall dimension of the ducts allows duct-
work penetration between roof joists that are spaced on
72” centers.
NOTE:
Ducts can be installed into the curb from the roof. All
electrical and gas line connections can be made
inside the curb.
FIGURE 8 - ROOF CURB DUCT OPENINGS
DIMENSION
FIGURE 9 - CUT AWAY OF ROOF CURB
FIGURE 10 -
Simplicity
®
CONTROL WIRING DIAGRAM
W1
W2
Y1
G
OCC
P
P1
Y2
X
R
SD
C
C
SD
SD
R
OCC
C
RC
G
Y2
Y1
W2
W1
Jumper
Smoke
Detector
24 VAC
Class 2
X
R
THERMOSTAT
TERMINALS
CONTROL
TERMINAL
BLOCK
TERMINALS ON
A LIMITED
NUMBER OF
THERMOSTATS
3
1
2
4
3
1
2
4
Second stage heating not required on single stage heating units.
Second stage cooling not required on single stage cooling units.
Jumper is required if there is no Smoke Detector circuit.
Jumper is required for any combination of R, RC, or RH.
6
5
5
6
OCC is an output from the thermostat to indicate the Occupied condition.
X is an input to the thermostat to display Error Status conditions.