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Majestic • MER36MN, MER42MN Installation Manual • 2599-980 Rev. B • 5/23
Figure 3.13 Passive Heat Minimum Framing Dimensions Open Top Discharge
Framing Dimensions - Passive Heat Open Top Discharge (PH-MR)
WARNING! Risk of Fire!
Mesh screen required on bottom of discharge opening when discharge
opening is greater than 3 inches. Secure mesh to top of framing.
Open Top Discharge: Both sides and the top are open allowing air to be conveyed into the room.
*
Mesh screen required for front discharge or open top discharge passive heat installations with discharge
opening of 3 inches or greater.
OPEN TOP DISCHARGE MINIMUM FRAMING DIMENSIONS
A*
B
C
Height of
Discharge Opening
Clearance to
Discharge Opening
Width of
Discharge Opening
MER36MN
Inches
2
41
36-1/2
millimeters
51
1041
927
MER42MN
Inches
2
41
42-1/2
millimeters
51
1041
1080
C
A
B