McQuay MHC Series, Installation & Maintenance Data, Page: 3 / 36

IM 985-1 / Page 3 of 36
Pre-Installation
1 .­ To­prevent­damage,­do­not­operate­this­equipment­
for­supplementary­heating­and­cooling­during­the­
construction­period .­Doing­so­will­void­the­warranty .
2. Inspect the carton for any specific tagging numbers
indicated­by­the­factory­per­a­request­from­the­
installing­contractor .­At­this­time­the­voltage,­phase­
and­capacity­should­be­checked­against­the­plans .
3 .­ Check­the­unit­size­against­the­plans­to­verify­that­
the­unit­is­being­installed­in­the­correct­location .
4 .­ Before­installation,­check­the­available­dimensions­
where­the­unit­be­installed­versus­the­dimensions­of­
the­unit .
5 .­ Note­the­location­and­routing­of­water­piping,­
condensate­drain­piping,­and­electrical­wiring .­
The­locations­of­these­items­are­clearly­marked­on­
submittal­drawings .
6. The installing contractor will find it beneficial
to­confer­with­piping,­sheet­metal,­and­electrical­
foremen­before­installing­any­unit .
Note: Check the unit data plate for correct voltage
with the plans before installing the equipment. Also,
make sure all electrical ground connections are made
in accordance with local code.
7 .­ The­contractor­shall­cover­the­units­to­protect­the­
machines during finishing of the building. This is
critical while spraying fireproofing material on bar
joists,­sandblasting,­spray­painting­and­plastering .­
Damage­to­the­unit­due­to­a­failure­to­protect­it­
during finishing of the building is not covered by the
warranty .­
WARNING
The installer must determine and follow all applicable
codes and regulations. This equipment presents hazards
of electricity, rotating parts, sharp edges, heat and weight.
Failure to read and follow these instructions can result in
property damage, severe personal injury or death. This
equipment must be installed by experienced, trained
personnel only.
Receiving and Storage
Upon­receipt­of­the­equipment,­check­carton­for­visible­
damage .­Make­a­notation­on­the­shipper’s­delivery­
ticket­before­signing .­If­there­is­any­evidence­of­rough­
handling,­immediately­open­the­cartons­to­check­for­
concealed­damage .­If­any­damage­is­found,­notify­the­
carrier­within­48­hours­to­establish­your­claim­and­
request­their­inspection­and­a­report .­The­Warranty­
Claims­Department­should­then­be­contacted .
­
Do­not­stand­or­transport­the­machines­on­end .­For­
storing,­each­carton­is­marked­with­“up”­arrows .
­
In­the­event­that­elevator­transfer­makes­up-ended­
positioning­unavoidable,­do­not­operate­the­machine­
until­it­has­been­in­the­normal­upright­position­for­at­
least­24­hours .
­
Temporary­storage­at­the­job­site­must­be­indoor,­
completely­sheltered­from­rain,­snow,­etc .­High­or­low­
temperatures­naturally­associated­with­weather­patterns­
will­not­harm­the­units .­Excessively­high­temperatures,­
140°F­(60°C)­and­higher,­may­deteriorate­certain­plastic­
materials­and­cause­permanent­damage .
IMPORTANT
This product was carefully packed and thoroughly
inspected before leaving the factory. Responsibility for its
safe delivery was assumed by the carrier upon acceptance
of the shipment. Claims for loss or damage sustained in
transit must therefore be made upon the carrier as follows:
VISIBLE LOSS OR DAMAGE
Any external evidence of loss or damage must be noted
on the freight bill or carrier’s receipt, and signed by the
carrier’s agent. Failure to adequately describe such
external evidence of loss or damage may result in the
carrier’s refusal to honor a damage claim. The form
required to file such a claim will be supplied by the carrier.
CONCEALED LOSS OR DAMAGE
Concealed loss or damage means loss or damage which
does not become apparent until the product has been
unpacked. The contents may be damaged in transit due
to rough handling even though the carton may not show
external damages. When the damage is discovered upon
unpacking, make a written request for inspection by the
carrier’s agent within fifteen (15) days of the delivery date
and file a claim with the carrier.
Unit Size 007 009 012 015 018
Fan Wheel - D x W (In.)
4.33 x 27.24 4.33 x 27.24 4.33 x 27.24 4.33 x 35.43 4.33 x 35.43
Fan Motor Horsepower
1/30 1/30 1/30 1/18 1/18
Coil Face Area (Sq. Ft.) 1.67 1.67 1.67 2.22 2.22
Coil Rows
2 2 3 2 3
Refrigerant Charge (Oz.)
18.2 19.2 22 29.9 32
Filter, (Qty.) Size (In.)
Low Sill (1) 23.75 x 8.75 (1) 31.75 x 8.75
High Sill (1) 29.25 x 9.75 (1) 37.25 x 9.75
Water Connections, Female NPT (In.) 5/8 O.D. 5/8 O.D. 5/8 O.D. 5/8 O.D. 5/8 O.D.
Condensate Connections, Female NPT (In.)
3/4 I.D. 3/4 I.D. 3/4 I.D. 3/4 I.D. 3/4 I.D.
Weight, Operating (Lbs.) 138 144 146 166 171
Weight, Shipping (Lbs.)
158 164 166 196 201
Table 1. Physical Data