3
ATH15-520.2
3
SI (METRIC) CONVERSION FACTORS / UNIT LOCATION
CAUTION
Units are designed for outdoor installation only. DO NOT
LOCATE UNITS INDOORS.
DANGER
Units must not be installed where they may be exposed to
potentially explosive or flammable atmosphere.
SI (METRIC) CONVERSION FACTORS
Table 3.1
Figure 3.1 - Combustible Material & Service Clearances
The minimum required clearance for service/maintenance is 48". If the ability
for future evaporator and/or hot gas reheat coil replacement on the adjacent
MPR unit is desired, the minimum clearance must be 64".
Actual minimum required service clearance is 36", however 52.85" is shown to
match the boundary defined by the MPR unit.
ACCESSORY
RAINHOOD
THE ENERGY RECOVERY UNIT IS
CLOSE COUPLED TO THE MAIN UNIT
WITH THE FACTORY INSTALLED
DUCT TRANSITION
ENERGY RECOVERY
MODULE
MAIN
UNIT
36.00
48.00
SEE NOTE
36.00
52.85
SEE NOTE
ADDITIONAL CLEARANCES:
-CLEARANCE ABOVE UNIT MUST BE UNOBSTRUCTED.
-CLEARANCE TO COMBUSTIBLES IS 0" (ZERO) IN ALL DIRECTIONS.
INSPECTION ON ARRIVAL
1. Inspect unit upon arrival. In case of damage, report it
immediately to transportation company and your local
factory sales representative.
2. Check rating plate on unit to verify that power supply meets
available electric power at the point of installation.
3. Inspect unit upon arrival for conformance with description of
product ordered (including specifications where applicable).
APPLICABLE MODELS
The instructions in this manual apply to the Energy Recovery
Module, model ERM, for use with the main ventilation unit,
model MPR with the following model digits:
•
Digit 6 = C (C-Cabinet)
•
Digit 7 = B or E (Interface to Energy Recovery)
Throughout this manual, the model ERM unit will be referred
to as the “ERM unit”. The model MPR unit to which the unit is
coupled will be referred to as the “MPR unit” or the "main unit".
The roof curb and main unit model MPR unit must be installed
prior to the installation of this model ERM unit.
SPECIAL DESIGN REQUESTS
Units are sometimes built with special features as requested
by the customer. This manual only covers standard features
and does not include any changes made for special feature
requests by the customer. Units built with special features are
noted with a 5-digit SPO (Special Product Order) Number on
the Serial Plate
STORAGE PRIOR TO INSTALLATION
If the unit is stored outside prior to installation, the unit should
be covered to protect the duct transition opening from the
weather.
COMMERCIAL WARRANTY
Refer to the back page of the Installation & Service Manual that
shipped with the model MPR unit for warranty information.
To Convert Multiply By To Obtain
To Convert Multiply By To Obtain
CFH
1.699
m3/min
“W.C.
0.24
kPa
Btu/ft3
0.037
mJ/m3
psig
6.893
kPa
pound
0.453
kg
°F
(°F-32) x 0.555
°C
Btu/hr
0.000
kW/hr
inches
25.4
mm
gallons
3.785
liters
feet
0.305
meters
psig
27.7
“W.C.
CFM
0.028
m3/min
UNIT LOCATION
Location Recommendations
1. Be sure the structural support at the unit location site is
adequate to support the weight of the unit and any other
required support structure. For proper operation the unit
must be installed in a level horizontal position.
2. All mechanical equipment generates some sound and vibration
that may require attenuation. Locating the equipment away from
the critical area is desirable within ducting limitations. Frequently,
units can be located above utility areas, corridors, restrooms, and
other non-critical areas. Generally, a unit should be located within
15 feet of a primary support beam. Smaller deflections mean
lesser vibration and noise transmission. For critical applications,
please consult with an acoustical attenuation expert.
3. Be sure that the minimum clearances to combustible
materials and recommended service clearances are
maintained. Units are designed for installation on non-
combustible surfaces with the minimum clearances shown
in Figure 3.1.
4. A method must be provided to prevent water and debris
from entering the unit such as a rainhood, which can be
ordered as an accessory. Where possible, install the unit so
that the inlet is not facing into the prevailing wind to prevent
water entrainment.
