Vertiv Liebert Mini-Mate MT048 - Installing Air-distribution Components for Evaporators

Figure 6.1 Installing threaded rods and hardware of ceiling-mounted units
Item Description Item Description
1 3/8-in. threaded rod, field-supplied 6 Isolator
2 3/8-in. hex nut 7 3/8-in. fender washer
3 3/8-in. washer 8 3/8-in. hex nut
4 Sleeve 9 3/8-in. Nylock locking nut
5 Bracket on unit 10 Unit base pan (reference)
6.2 Installing Air-distribution Components for Evaporators
Your indoor units may include filters, ducting, plenums, and grilles. Refer to the appropriate installation
procedures included with each optional kit.
6.2.1 Installing a Filter Box for 4-ton and 5-ton Models
The optional filter box attaches directly to the return-air opening of the evaporator.
• For return-air opening, the filter box includes a duct-flange connection with two MERV8 filters
(per ASHRAE 52.2-2007), 20in.x20in.x4in. (508mmx508mm x 102mm).
• For the supply-air opening, a duct flange is included for ducted supply air.
NOTE: Do not operate the unit without filters installed in return air system.
6.2.2 Installing a Filter Box for 3-ton Models
The optional filter box attaches directly to the return-air opening of the evaporator.
• The filter box includes one MERV8 filter (per ASHRAE 52.2-2007), 20in.x20in.x4in.
(508mmx508mm x 102mm).
NOTE: Do not operate the unit without filters installed in return air system.
6.2.3 Installing an Air-distribution Plenum for 3-ton Models
The optional plenum fastens to the bottom of the evaporator and provides three-way air distribution. The
plenum includes a MERV8 filter (per ASHRAE 52.2-2007), 16in.x25in.x4in. (406mmx635mm x
102mm).
• When using the plenum, mount the evaporator above the bottom of the T-bar supports with at
least 30-in.(762mm) clearance from return-air end to wall (for replacing filter).
• Follow the installation instructions included with the plenum kit.
Vertiv | Liebert® Mini-Mate™ Installer/User Guide
28