
 MBE SERIES FAN COIL UNIT
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
GENERAL
  The manufacturer assumes no 
responsibility for equipment installed in violation of any code requirement. 
  These instructions give information relative to the installation of 
these fan coil units only. For other 
related equipment refer to the 
proper instructions. 
  Material in this shipment has 
been inspected at the factory and 
released to the transportation 
agency in good condition. When 
received, a visual inspection of all 
cartons should be made immediately. Any evidence of rough handling or apparent damage should 
be noted on the delivery receipt 
and the material inspected in the 
presence of the carrier's representative. If damage is found, a claim 
should be filed against the carrier 
immediately.
FAN COIL UNIT
  The installer must adhere strictly 
to all local and national code requirements pertaining to the installation of this equipment. 
  These units are designed to be 
installed in either an upflow or horizontal left side down position.
 WARNING:
must be taken that no internal 
damage will result if screws or 
holes are drilled into the cabinet.
  All fan coil units are U.L. Listed 
for installation with zero inches 
clearance to combustible materials. This includes the fan coil cabinet, discharge plenum and connecting ducts. Sufficient clearance must be provided at the front 
of the fan coil to allow access to
 Extreme caution
electrical controls and removal of 
the motor / blower assembly for 
servicing. This clearance distance 
should be approximately the same 
as the depth dimension of the fan 
coil unit.
HORIZONTAL 
APPLICATION
 The MBE Fan Coil Units are factory assembled for horizontal application without any modification 
required. However the unit should 
be leveled in such a way that there 
is slope toward the condensate 
drain nipple to assure positive 
drainage.
AIR DISTRIBUTION 
DUCTS
  All duct work must be installed in 
accordance with National Fire Protection Association Codes 90A and 
90B. The return air duct must have 
the same free area as the opening 
provided on the fan coil unit. If 
there is no ducted return, applicable installation codes may limit 
the unit to installation only in a 
single story residence.
ELECTRICAL
  All wiring must comply with local 
and national code requirements. 
Units are provided with wiring diagrams and nameplate data to provide information required for necessary field wiring. Knockouts are 
provided on the cabinet for connection of power supply. 
  These fan coil units are provided 
with a Class 2 transformer for 24volt control circuits. Should any 
add-on equipment also have a
Class 2 transformer furnished, 
care must be taken to prevent interconnecting outputs of the two 
transformers by using a thermostat 
with isolating contacts.
PIPING
  These fan coil units are supplied 
with a chilled water coil. Each coil 
has a 1/4 inch bleed valve. 
  Sweat connnections are required at the coil. 
  Condensate drain lines must be 
installed with adequate slope away 
from the unit to assure positive 
drainage. Since the drain pan is 
located on the suction side of the 
blower, a negative pressure exists 
at the drain pan and a minimum 
trap of 1-1/2 inches must be provided in the drain line to assure 
proper drainage.
OPERATING AND 
MAINTENANCE
  Prior to start-up, inspect the 
blower to assure the wheel turns 
freely without rubbing on the housing. See that the air filter is properly 
positioned in the unit, then replace 
access panel. 
  The air filter should be cleaned or 
replaced as often as necessary to 
prevent restriction of air flow. Always replace the filter with the 
same type as originally furnished. 
  The blower motor should be 
cleaned and oiled with a good 
grade of SAE 20 oil annually. Normally a few drops of oil in each 
bearing is sufficient.
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