Form: 2435
Revision: 9
Free Flex Installation and Operation Manual
Date: 9-1-2017
Bryan Steam LLC, 783 N Chili Ave, Peru IN 46970
Web:
www.
bryanboilers
.com
Phone:
765-473-6651
Fax:
765-473-3074
Email:
12
3
Installation
3.1
Receiving The Boiler
The boiler is shipped from the factory with
(4) shipping feet/legs bolted to the skids.
These are provided to facilitate unloading
/moving with a forklift. Lifting points are
also provided to enable over-head lifting with
spreader bars to prevent damage to the boiler.
The shipping feet/legs MUST BE
REMOVED after the boiler is set in-place on
its concrete foundation before any
piping/electrical connections are made. It is
recommended that the plastic protective
cover be left on as long as possible to reduce
finish damage from the installation.
3.2
Boiler Connections
Do not run any pipes along the tube access
panel side of the boiler. Maintain clearances
as shown on the dimensional drawing for
servicing of the boiler tubes. All piping
should be designed and installed to avoid any
loadings on the boiler connections or piping.
3.2.1
Flow Connection
The system supply and return flow
connections are shown on Figure 1. A gate
valve should be installed on the boiler outlet
and inlet lines. This allows the boiler to be
isolated from the heating system for draining
and servicing.
3.2.2
Safety Relief Valves
Safety relief valve(s) are shipped loose.
Connections are provided in the top of the
boiler for the safety relief valve(s). The safety
relief valve discharge piping must be the same
size as the safety relief valve discharge
opening and run to a point of safe discharge.
No shutoff valves are to be placed between
the relief valve and the appliance or in the
discharge piping. Avoid over-tightening as
this can distort valve seats. All piping from
the safety relief valve(s) must be
independently supported with no weight
carried by the valve.
NOTICE
If the relief valve discharges periodically,
this may be due to thermal expansion in a
closed water supply system. Contact the
water supplier or local plumbing inspector
on how to correct this situation. DO NOT
PLUG THIS RELIEF VALVE.
3.2.3
Minimum Relief Valve Settings
The minimum relief valve setting for standard
systems shall be 30 psig. The system shall
operate with no less than 26 psig at all times.
For systems designed to operate at delta T’s
greater than 40°F, the boiler shall be equipped
with a minimum relief valve setting of 60 psig.
The system shall operate with no less than 50
psig at all times. This will prevent boiler
water hammer.
3.2.4
Expansion Tank Connections
Connection(s) to an expansion tank are to be
provided by others in the system piping
separate from the boiler.
3.2.5
Drain Connection
A drain valve must be installed on the boiler
drain connection, the same pipe size as this
connection, to allow draining of the boiler.
