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APC UTS6H Specifications Page 26

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8.8 HHI Module to Distribution Manifold
Follow industry standards when installing distribution •
manifold.
Install MCHP hydronic pump below manifold to prevent •
circulator from air locking.
Size tubing or piping connecting Hybrid HI module •
with distribution manifold ½” NPT or larger to provide
adequate fl ow for transfer of heat from MCHP’s coolant
into hydronic water.
Pump shall provide fl ow of at least 4 gpm to brazed •
plate heat exchanger (~1 psi Pressure Drop) in
Hydronic HI Module. Grundfos SuperBrute Pump
(UPS1558FC) is suggested.
See Figure 8-9 design example of piping.•
Installation•
Attach two supplied 1/2” NPT X barb fi ttings to A.
threads on bottom of heat exchanger per Figure
8-11. Apply pipe thread compound.
Attach Onix tubing to barbs securing with Selftite B.
clamps.
8.9 HHI Module Heat Rejection System
Connections
NOTICE
Follow these steps to ensure proper system
operation and prevent permanent damage to
Hydronic HI Module or Honda MCHP.
NOTICE
Follow detailed instructions provided with heat
rejection accessory kit to construct heat rejection
piping loop.
Following steps are required to connect heat rejection sys-
tem to Hydronic HI Module for Heat Rejection cooling.
Install pipe or tubing from supplied heat rejection loop •
to BPHX. Ensure counter fl ow between heat rejection
fl uid and MCHP Coolant. See Figure 8-12.
Install pipe or tubing from outlet of BPHX to heat rejec-•
tion loop.
8.10 Condensate Drain Piping
NOTICE
Boiler and MCHP’s drain trap assembly must be
fi lled with water before operating system. Dry trap
may cause pressure switches to behave erratically,
preventing boiler from operating normally, or cause
exhaust products to enter building space.
8- PLACING THE SYSTEM
Figure 8-10 Condensate Lines
Figure 8-9 HI Module to Distribution Manifold
Piping
From
Hydronic Loop
To
Hydronic Loop
Figure 8-11 Hydronic freewatt
®
PLUS HI
Module
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