Installation Procedure - Columbia EMG-31 120 Instructions Manual

Installation Procedure

Unit installation must be performed only by a qualified serviceman
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that is familiar with state and local codes.
1) Inspect the boiler package to ensure that no damage occurred during shipment.
Please contact the distributor immediately if there is any sign of damage.
2) Maintain the boiler package in its protective crate as long as possible to prevent any
damage when positioning the boiler. When the boiler package is located adjacent to
its final position, the protective crate may be removed by first cutting the banding
(Note: bands are under tension and will spring back when cut) and then by prying the
individual crate panels. In addition, remove the lag bolts which hold the boiler onto
the skid.
3) Place the boiler on a level floor as near to the chimney as possible. Adhere to the
following minimum clearances to combustible material:
a. Floor – Non Combustible Floor Only
b. Sides – 6"
c. Rear – 6"
d. Front – 24"
e. Top – 38"
f. Chimney Connector (Vent Pipe) – 18"
For clearances less than the listed values, please consult National Fire Protection
Agency (NFPA) -54 National Fuel Gas Code Table 6.2.3(B).
4) Ensure that there is adequate combustion air for the burner. Lack of adequate
combustion air may result in noisy combustion, erratic burner operation, and/or
nuisance lock outs. In addition, the lack of combustion air will result in a shift of the
burner's performance curve and may result in the generation of CO gases inside of
the heat exchanger. Please refer to the Start Up Procedure & Annual Maintenance
Requirement sections for instructions on setting up and servicing the burner.
For installations in utility rooms or closets, it is necessary to provide two separate
ventilation openings in the door (one located at 12" and the other 60"). Each opening
shall be 160 square inches in size. For installations in buildings with tight
construction (little fresh air infiltration), it is necessary to place an opening in the
exterior wall that is 160 square inches in size and is located adjacent to the boiler.
5) Install piping for the hydronic and domestic hot water systems. Utilize the 1-1/4"
coupling located on top of the boiler for the hydronic system supply and the 1-1/4"
nipple at the midpoint of the front face for the hydronic system return. Connect the
hot water system to the 1/2" copper fittings located on the coil plate. The right side
adapter is for incoming cold water and the left side for outgoing hot water. Pipe the
hydronic and hot water systems as detailed in the following figure. Ensure that all
fittings are tight before filling the system.
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