Specifications
12
ModPac II, 9/09-15
• Appropriate electrical supplies such as conduit, electrical boxes, ttings, wire connec-
tors, etc.
• High voltage wire, sized to handle the MCA (minimum circuit ampacity) listed on the data
plate.
• Over-Current Protection Device sized in accordance with the MFS (maximum fuse size)
listed on the unit data plate.
Duct materials usually are also needed in addition to the mounting hardware. To save time, design
the duct work before mounting the unit.
2.4 Porting and Duct Work
General Information
Note: The following instructions are for general guidance only. Due to the wide variety of instal-
lation possibilities, specic instructions will not be given. When in doubt, follow standard and
accepted installation practices, or contact Marvair
®
for additional assistance.
Wall Openings and Duct Clearance
Measure the dimensions of the supply and return openings on the ModPac II™ air conditioner .
Minimum Airow Requirements
Ducting
Extensions should be cut ush with the inside wall for applications without duct work.
Applications using duct work should be designed and installed in accordance with the current
edition of the National Fire Protection Association codes and standards 90A and 90B. The duct
WARNING
FIRE HAZARD
Improper adjustment, alteration, service, maintenance or installation could cause
serious injury, death and/or property damage.
Installation or repairs made by unqualied persons could result in hazards to you
and others. Installation MUST conform with local codes or, in the absence of local
codes, with codes of all governmental authorities have jurisdiction.
The information contained in this manual is intended for use by a qualied service
agency that is experienced in such work, is familiar with all precautions and safety
procedures required in such work, and is equipped with the proper tools and test
instruments.
WARNING
Cut the supply opening in the exterior wall for the supply and return. IMPORTANT:
All units must have one inch clearance on all four sides of the supply outlet duct
ange on the unit. The one inch clearance must extend on all sides of the supply
duct for the rst three feet from the unit.
WARNING
The duct system must be engineered to assure sufcient air ow through the
ModPac II™ A/C, even under adverse conditions such as dirty lters, etc. Use Table
2 below and Table 3 - CFM at External Static Pressure (Wet Coil) in section 5.1.