AAON H3 Series, Установка, эксплуатация и обслуживание

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Table 11 - Hot Water Coil Sweat
Connection Sizes
Model
(H3-)
Supply and Return
Connection Size (OD)
A 2.2 cm 7/8"
B 2.9 cm 1 1/8"
C 3.5 cm 1 3/8"
D & E 4.1 cm 1 5/8"
Connect the hot water heating supply to the
bottom of the coil and return to the top.
Figure 22 - Hot & Chilled Water Piping
Do not subject water coils to entering air
temperatures below 3.3
°
C (38°F) to prevent
coil freeze-up. If air temperature across the
coil is going to be below this value, use a
glycol solution to match the coldest air
expected.
Water supply lines must be insulated,
properly fastened, drained, and supported
according to local code requirements.
Chilled Water Coil
Factory installed four, six or eight row chilled
water cooling coils can be factory mounted.
These coils are supplied from a building
chilled water source. All valve controls for
the cooling coil operation are field supplied
and field installed.
Table 12 - Chilled Water Coil Sweat
Connection Sizes
Model (H3-)
Supply and Return
Connection Size (OD)
A
2.9 cm
1 1/8"
B
3.5 cm 1 3/8"
C 4.1 cm 1 5/8"
D & E 5.4 cm
2 1/8"
Connect the chilled water supply to the
bottom of the coil and return to the top.
Water supply lines must be insulated with
closed cell type pipe insulation or insulation
that includes a vapor barrier. Lines must be
properly fastened, drained and supported
according to local code requirements, and job
specifications.
Table 13 – Minimum and Maximum Coil
Pressures and Temperatures
Chilled Water Hot Water
Min. Entering
Air
15.6°C (60
°
F) 4.4 °C (40
°
F)
Max Entering
Air
37.8°C (100
°
F) 26.7°C (80
°
F)
Min. Entering
Water
1.7°C (35°F) 60°C (140°F)
Max Entering
Water
18.3°C (65
°
F) 93.3°C (200
°
F)
Min. Water
Pressure
0 kpa (15 psig)
Max Water
Pressure
2068kpa (300 psig)