Page 13
arrangement will allow any air trapped in the
system to be easily flushed out. Follow the
instructions in the
Start-up
&
Troubleshooting
sections.
Isolation valves are recommended, but not
required. Installing isolation valves facilitates
easy servicing and ensures positive purging
of the system during start-up.
The isolation valves, if installed in the system
should not be used as a throttling valve.
All joints in copper pipe must be lead free
solder. All piping must be suitable for potable
water use. All pipe & pipe connections shall
comply with local building codes.
When soldering, special care should be taken
to not overheat the water connections on the
unit. Use a wet rag or heat absorption
compound to prevent excessive heat buildup.
Maximum pipe lengths for all
MaxAir(e)
™
combo air handlers can be calculated using
the information in the Design Manual.
When both top and side connections are
provided on the water heater,
recommendations of the manufacturer or
supplier should be followed regarding
connection.
When the space heating loop connections
are made to the domestic water connections:
the heating loop connections should be
positioned horizontally in a vertical section
of the domestic water line for both inlet
and outlet. Refer to the suggested piping
schematic for details.
connect the heating loop to the domestic
water connections as close to the water
heater as possible.
Avoid sections of pipe in the heating loop that
can trap air where possible.
It is usually impossible to install a system
without having at least one part of the system
or heating coil able to trap air. This will not be
a problem if the connection to the domestic
water lines is made properly, and the system
is properly purged on set-up:
The circulating pump is capable of
removing small amounts of entrained air
from the heating loop.
Following the flushing procedures in the
Start-up
section will ensure that there is
no air in the system after initial set-up.
Proper connections between the domestic
water lines and the heating loop will
ensure that any air that collects in the
water tank, does not make its way into the
heating loop.
Inclusion of air bleed valves at high points of
the heating system can be included but are to
be specified by the plumbing designer.
anti-scald valve
Anti-scald valves are not required for normal
operation, but may be used for installations
where local codes dictate a lower domestic
water temperature. If an anti-scald device is
to be installed, it must comply with ASSE
standards no. 1016 and 1017, where
applicable.
cooling coil & TX valve
The Airmax accessory slab cooling coil is
shipped loose. A factory installed TX valve
where applicable, is shipped with the cooling
coil. The TX valve is installed onto the
distributor and an external equalizing line is
piped into the suction line. Detailed
instructions on the TX valve and the location
of the external equalizing line and sensing
bulb are available from your
MaxAir
™ dealer.
When brazing care should be taken to not
overheat the connections on the coil. Use a
wet rag or heat absorption compound to
prevent excessive heat buildup.
Once the brazed connections cool down,
apply a bead of silicone sealant to the copper
pipes where they pass through the rubber
grommet. This will prevent air leaks and air
noise.
The
MaxAir(e)
™ fan coils with the accessory
Содержание MaxAir 100e P2
Страница 43: ...Page 43 WIRING DIAGRAM P2 UNITS...
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Страница 45: ...Page 45 WIRING DIAGRAM P2 UNITS ALTERATIONS HEAT PUMP OPTION...
Страница 46: ...Page 46 WIRING DIAGRAM P3 UNITS ALTERATIONS HEAT PUMP OPTION...
Страница 51: ...Page 51 FAN COIL DIMENSIONS AND RETURN AIR SIZE LOCATION...
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Страница 61: ...Page 61 2 AND 2 5 TON EVAPORATOR COIL SIZES 70 IPCE 24 30A...
Страница 62: ...Page 62 SAMPLE PIPING SCHEMATICS...
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