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3 INSTALLATION
3.1 Introduction
This Chapter provides the descriptions and procedures necessary
to unpack, inspect and install the
SE - AR 500 SE.
3.2 Receiving the Unit
Each Array Boiler System is shipped as a single crated unit. The
unit must be moved with the proper lifting equipment for safety
and to avoid equipment damage. The unit should be completely
inspected for evidence of shipping damage and shipment com-
pleteness at the time of receipt from the carrier and before the bill
of lading is signed.
NOTE:
R
is not responsible for lost or damaged freight. Any vi-
sual damage to the packaging materials must be reported to the
delivering carrier.
3.3 Unpacking
Carefully unpack the unit, pay particular attention not to damage
the unit enclosure when cutting away packaging materials.
After unpacking, a close inspection of the unit should be made
to ensure that there is no evidence of damage. The freight carrier
should be notified immediately if any damage is detected.
The following accessories come standard with each unit and are
either packed separately within the unit's shipping container or
are factory installed on the unit:
− Pressure/Temperature Gauge
− ASME Pressure Relief Valve
Fig. 11 ASME Pressure Relief Valve
When optional accessories are ordered, they may be packed with-
in the unit's shipping container, factory installed on the unit, or
packed and shipped in a separate container. Any standard or op-
tional accessories shipped loose should be identified and stored
in a safe place until ready for installation or use.
R
Array Boiler Model AR 399
3.4 Site Preparation
Ensure that the site selected for installation of the Array AR SE Boil-
er includes:
− Access to AC Input Powerat 120VAC, single phase, 60Hz
− Access to Natural Gas line at a recommended minimum
pressure of 8 inches w.c. for 399.220 BTU/hr (117 kW) for
Array AR 399 SE and 500.000 BTU/hr (146.5 kW) for Array AR
500 SE.
− The boilers should be mounted on a concrete service/
housekeeping pad 3,5-4" in height.
− The boiler should be located close to a floor drain in an area
where leakage from the appliance or connections will not
cause damage to the adjacent area or lower floor levels in
the building.
3.5 Installation premises
The Array AR SE can be installed in rooms that are permanently
ventilated and equipped with suitably sized ventilation openings
in line with Technical Standards and Regulations applicable to the
installation site.
9
WARNING: When installing the boiler, allow sufficient space
around it to access all safety and control devices and to permit
easy maintenance.
9
WARNING: Check that the electric protection level of the appli-
ance is suitable for features of the room where it is installed.
9
WARNING: Make sure that comburent air is not contaminated
by substances containing chlorine or fluorine (elements found
in sprays, paints, detergents etc.).
0
STOP: Do not obstruct or restrict the air vents in the room
where the boiler is installed. A free air supply is essential for
correct combustion.
0
STOP: It is forbidden to leave flammable containers and sub-
stances in the room where the boiler is installed.
3.5.1 Installation clearances
The Array model AR 399 SE - AR 500 SE are packaged in an enclo-
sure having identical footprint but different height.
The unit must be installed with the prescribed clearances for ser-
vice. The minimum clearance dimensions, required by R, are
listed below.
However, if Local Building Codes require additional clearances,
these codes shall supersede R's requirements.
Recommended minimum clearances for installation and servicing:
− Sides: 10 inches
− Front: 40 inches
− Rear: 5 inches
− Top: 20 inches
19
INSTALLATION
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