Carrier Aquazone 50WD handleiding
Handleiding
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16
INSTALLING SUPPLY AND RETURN HOSE KIT
Follow these piping guidelines:
1. Install a drain valve at the base of each supply and return riser
to facilitate system flushing.
2. Install shutoff/balancing valves and unions at each unit to
permit unit removal for servicing.
3. Place strainers at the inlet of each system circulating pump.
4. Select the proper hose length to allow slack between
connection points. Hoses may vary in length by +2% to –4%
under pressure.
5. Do not exceed the minimum bend radius for the hose
selected. Refer to Table 4. Exceeding the minimum bend
radius may cause the hose to collapse, which reduces water
flow rate. Install an angle adapter to avoid sharp bends in the
hose when the radius falls below the required minimum.
NOTE: Piping must comply with all applicable codes.
Insulation is not required on loop water piping except where the
piping runs through unheated areas or outside the building or
when the loop water temperature is below the minimum expected
dew point of the pipe ambient. Insulation is required if loop water
temperature drops below the dew point.
Pipe joint compound is not necessary when Teflon threaded tape is
pre-applied to hose assemblies or when flared-end connections are
used. If pipe joint compound is preferred, use compound only in
small amounts on the male pipe threads of the fitting adapters.
Prevent sealant from reaching the flared surfaces of the joint.
NOTE: When anti-freeze is used in the loop, assure that it is
compatible with Teflon tape or pipe joint compound employed.
Maximum allowable torque for brass fittings is 30 ft-lb. If a torque
wrench is not available, tighten finger-tight plus one quarter turn.
Tighten steel fittings as necessary.
Optional pressure-rated hose assemblies designed specifically for
use with Carrier units are available. Similar hoses can be obtained
from alternate suppliers. Supply and return hoses are fitted with
swivel-joint fittings at one end to prevent kinking during
installation.
Male adapters secure hose assemblies to the unit and risers. Install
hose assemblies properly and check them regularly to avoid sys-
tem failure and reduced service life. See Fig. 16.
Fig. 16 — Supply/Return Hose Kit
UNITS WITH BOILERLESS HEAT CONTROL
Units with Boilerless Heat Control include entering water tem-
perature sensor that is factory installed on the incoming water
piping.
Refer to see Step 9 — “Configure Unit Control Components” on
page 24 for boilerless control configuration for units with Option
Card (units without factory installed TruVu™ controller).
Refer to the TruVu™ controller section of this manual for config-
uring the entering water temperature set point for boilerless con-
trol operation for units with TruVu™ controller.
UNITS WITH HOT WATER GENERATOR OPTION (HEAT
RECOVERY PACKAGE/DESUPERHEATER)
The hot water generator (HWG) is a factory-installed option capa-
ble of providing hot water in the range of 110 to 140°F as a sup-
plemental domestic hot water source. The HWG is a desuper-
heater that uses recovered heat from the hot discharge gas leaving
the compressor. Included with the HWG is a vented, double wall
coil, circulating pump, high water temperature limit switch (set at
140°F), discharge gas temperature limit switch, and an ON/OFF
switch with built-in circuit breaker. The generator operates inde-
pendently and is not factory wired to the unit controller.
NOTE: The HWG will reduce the amount of heat available to the
space and it is recommended to deactivate the HWG in heating
mode via the ON/OFF switch.
Water Tank Preparation
1. Turn off electrical or fuel supply to the water heater.
2. Attach garden hose to water tank drain connection and run
other end of hose outdoors or to an open drain.
3. Close cold water inlet valve to water heater tank.
4. Drain tank by opening drain valve on the bottom of the tank,
then open pressure relief valve or hot water faucet.
5. Once drained the tank should be flushed with cold water until
the water leaving the drain hose is clear and free of sediment.
6. Close all valves and remove the drain hose.
7. Install HWG water piping. All hot water piping should be a
minimum of 3/8 in. OD copper tube to a maximum distance
of fifteen feet. For distances beyond fifteen feet but not
exceeding sixty feet use 1/2 in. copper tube. Separately insu-
late all exposed surface of both connecting water lines with
3/8 in. wall closed cell insulation. Install isolation valves on
supply and return to the hot water generator. See Fig. 17.
NOTE: Diagram is for illustration purposes only. Ensure
access to heat pump is not restricted. All plumbing and piping
connections must comply with local plumbing codes.
Fig. 17 — Typical Hot Water Generator Installation
Table 4 — Metal Hose Minimum Bend Radii
HOSE DIAMETER (in.) MINIMUM BEND RADII (in.)
1/2 3-9/16
3/4 3-9/16
14-3/8
IMPORTANT: Do not bend or kink supply lines or hoses.
CAUTION
Backup wrench is required when tightening water connections
to prevent water line damage. Failure to use a backup wrench
could result in equipment damage.
Rib
Crimped
Length
(2 ft length standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
WSHP
Isolation
Valves
Cold
Water In
Hot Water
Out
Drain
Valve
Storage
DHW
Heater
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Productinformatie
| Merk | Carrier |
| Model | Aquazone 50WD |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 15865 MB |
