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Dwg. No. X664209 P01
5
6
CONVERTING HORIZONTAL TO DOWNFLOW
REQUIRED CLEARANCE FOR UNIT INSTALLATION
AND ROOF PENETRATION HOLE SIZE REQUIRED
HEATER EXCHANGER
TUBES
HORIZONTAL SUPPLY
AIR COVER
HORIZONTAL RETURN
AIR COVER
SHEET METAL
SCREWS
E
F
HOLE IN ROOF
WOOD NAILER
SIDE RAIL
SERVICE
CLEARANCE
LINES
SERVICE
CLEARANCE
LINES
A
B
C
D
SUPPLY AIR
RETURN AIR
NOTE
SUPPLY OPENING
1. REMOVE SCREW NEAREST TO THE
OPENING AND PULL THE PANEL FIRMLY
TOWARD THE OUTSIDE OF THE UNIT TO
DISENGAGE THE BACK ATTACHMENT.
RETURN OPENING
2. REMOVE RIGHT HAND SCREW AND
MOVE PANEL TO THE RIGHT OR RE-
MOVE BOTH SCREWS.
SERVICE CLEARANCE & PENETRATION DIMENSIONS
MODEL NO.
A
B
C
D
E
F
YCCO18-036F-L
30"
30"
*6"
24"
36"
25"
YCC030-036F-M,F-H
YCC042-048F-M
30"
30"
*12"
30"
44"
25"
YCC048F-H, 060F-M
42"
30"
*12"
36"
50"
25"
* 18" WITH FRESH AIR ACCESSORY
* 30" WITH ECONOMIZER