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SlimFit
Series 3
Fast-Track Setup — Typical Application C
Figure 13 Typical Application C — Piping layout — typical piping for multiple SlimFit boilers, using isolation
exchanger (adjust boiler connections as required for other boiler models)
Use isolation heat
exchanger for:
1. Large volume systems with high
mineral content in water.
2. Systems exposed to untreated
quantities of makeup water.
3. Old systems severely con -
taminated with scale and rust
buildup inside piping and heat
distribution units.
4. Process applications.
5. Commercial service water ap -
plications.
6. High water pressure applica -
tions, requiring pressure relief
setting in heating system more
than 30 PSIG (tall buildings).
See notes below.
Heat exchanger type — This illustration shows a shell and
tube exchanger. Other exchanger types may be used if suitable
for the system water conditions.
1 Flow/check or spring check valve.
2 Isolation valves (when used).
3 Cap.
4 Easy-Fit® Manifold (supply) — lay-
out and size per page 7.
5 Easy-Fit® Manifold (return) — lay-
out and size per page 7.
6a Heating system circulator
(exchanger tube-side).
6b Heat exchanger shell-side circulator
7 Expansion tanks (diaphragm type).
8 System air eliminator.
9 System automatic air vent.
– 18 –
&
&
Legend — Figure 13
12 Boiler drain valves.
13 Cold water supply connections (per applicable
codes).
17 Boiler circulator — circulates water between
boiler and Easy-Fit® Manifolds.
18 Heating system supply.
19 Heating system return.
20 Boiler relief valve and discharge piping,
installed per SlimFit boiler manual.
21 Strap system supply and return sensors to
lines as shown, at least 6 pipe diameters (but
no more than 3 feet) from boiler connection
tees. For redundancy, you can install multiple
sensors, each connected to a different boiler.
31 Unions.
32 Pressure/Temperature gauge installed on
boiler outlet.
Advanced Manual
:
%
Notes:
1.
Contact heat exchanger manufacturer for heat ex-
changer shell-side and tube-side piping and circulator
requirements. Tube-side flow and temperatures must
meet heating system requirements.
2.
Contact heat exchanger manufacturer for sizing heat
exchanger.
3.
Heat exchanger shell-side circuit requires its own
expansion tank as shown.
4.
Heating system circuit requires its own expansion
tank, as shown, plus its own relief valve set to protect
heating system and heat exchanger piping and com-
ponents.
5.
When individual isolation valves are used, individual
boiler and level controls may be required.
Part number 550-100-569/0321
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