Specifications

22
8.1 Place system to provide direct connections
to:
combustion air/vent piping system, •
natural gas piping, •
return and supply duct-work, •
condensate removal system,•
electrical connections.•
8.2 Instructions for preparation and placement
of Hydronic freewatt PLUS System:
Determine location for boiler, MCHP and indirect hot •
water tank (if used), identify location for hydronic
HI module, relay switches and circulators. Typical
confi guration for Hydronic freewatt PLUS System is
shown in Figure 2-1.
Place crated boiler and HONDA MCHP unit as close to •
selected location as possible and un-crate units.
Follow instructions outlined in • freewatt PLUS Boiler
Installation, Operation and Maintenance Manual for
placing boiler. See Figure 2-2 for boiler details.
System confi guration and fi nal placement should allow •
for future servicing of equipment.
See Figure 8-2 for typical piping schematic to assist •
in determining layout of freewatt PLUS system
components.
Reference HONDA MCHP Installation Manual for •
instructions regarding placement.
Install MCHP unit base as specifi ed in HONDA MCHP, •
Model YM2Z, Installation Manual and Owner’s Manual
as summarized below and Figure 8-1.
Place base on concrete fl oor and level.•
Mark anchor bolt locations on concrete fl oor.•
Drill hole diameters in concrete for anchor bolts •
per manufacturer’s installation instructions. If
obstruction is hit, move base and re-drill.
Attach base to anchor bolts with supplied hardware.•
Locate washers between MCHP and base if unit •
needs to be shimmed level.
Orientation of bolt & nut is important. Bolt must be •
installed from top with nut on bottom. Use nuts and
bolts supplied in installation kit. Do not use shipping
bolts which attach MCHP to shipping pallet.
Do not make penetrations or drill holes in MCHP unit •
cabinet.
CAUTION
Penetration or modifi cations of MCHP cabinet will
result in potential electrical or fi re hazard. Do
not attach controls, wire, piping, conduit or other
hardware to MCHP unit.
Place HONDA MCHP on base and secure MCHP unit to •
base with supplied hardware after base installed. See
Figure 8-1.
Determine location of Hydronic HI Module enclosure. •
Mount enclosure on solid wall or partition. Recommend
enclosure be located close to HONDA MCHP. HI module
may be mounted up to 10 feet away from HONDA
MCHP unit. Locate enclosure with installation and
service accessibility in mind.
Hydronic HI Module bottom should be installed at •
height of 32” to 42” above fl oor elevation where
base of HONDA MCHP is installed.
Ensure top of Hydronic Hybrid Integration (HI) •
module is mounted above Honda MCHP’s top cover.
HI Module bottom should not be above MCHP top.
Hydronic piping between HI module and primary •
hydronic loop manifold should not exceed 40 feet.
Piping and circulator should be designed for water
fl ow rate of 4gpm. HI module heat exchanger
pressure drop is approximately 1 psi.
Position enclosure, check for level, mark mounting •
holes.
Start screws (#10 ,4 each, fi eld source) for keyhole •
type mounting holes in upper corner(s). Tighten
screws down to about 1/8” (3mm) from surface.
Hang enclosure on screws, position enclosure and •
start bottom screws.
Tighten all screws.•
Figure 5-1 MCHP Base Installation
8 - PLACING THE SYSTEM