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3. Preparation
Plan the location of the appliance and the warm air duct
runs. See Table 3.1.
WARNING! Risk of Fire! DO NOT fold/kink/pinch/ob-
struct 6 inch flexible ducts. Appliance could overheat.
AIR DUCT LENGTH
(Measurements in Inches)
SIZE
MIN.
36
28
48
28
PHSI-MCE is not approved for 60 and 72 inch models.
Table 3.1 Air Duct Length & Clearances
*Size 60 And 72 appliance models must use all 4 heat
management knock outs unless the addition of 1 alternate
heat management system is used (HEAT-OUT-GAS, HEAT-
ZONE-GAS) in conjuction with the ducted passive heat.
If alternate heat management systems are used with the
Ducted Passive Heat Kit (PHFR-MCE-XX), they must use
an outside heat management knockout location on the far
left or right of the appliance.
PITCH (In Inches)
Y Min.
Y Min.
X
PRIMO48
PRIMO60
PRIMO48ST
PRIMO60ST
0
60-1/16
66-1/16
12
72-1/16
78-1/16
24
84-1/16
90-1/16
Figure 3.1 Side Discharge - Maintain Pitch
MAX.*
DUCT Quantity
150
2
150
2
TOP OF SIDE DISCHARGE ASSEMBLY
HOSE CLAMP
24 IN. MAX.
HORIZONTAL
MAINTAIN
MINIMUM
12/12 PITCH
X
Hearth & Home Technologies • PHSI-MCE Instructions • 2560-973 • 6/20
Y
3
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