Carrier AQUAZONE 50PSH, Инструкция по установке, запуску и обслуживанию

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After a few minutes of reverse operation, the scroll compressor in -
ternal overload protection will open, thus activating the unit lock -
out. This requires a manual reset. To reset the lockout, turn the
thermostat on and then off or power cycle the unit power feed.
NOTE: There is a 5-minute time delay before the compressor will
re-start.
COOLING MODE START-UP
See Tables 17 and 18 for typical unit operating pressures and
temperatures.
1. Using the thermostat or DDC control, operate the unit in the
cooling cycle. Refer to Table 16 for operating limits. Allow
the unit to run for a minimum of five minutes and record the
operating data.
2. Check for water leaks and vibration.
3. Check for cool air delivery at unit grille a few minutes after
the unit has begun to operate.
4. Verify that compressor is on and that water flow rate is cor -
rect by measuring pressure drop through the heat exchanger
using P/T plugs. Check the elevation and cleanliness of the
condensate lines; any dripping could be a sign of a blocked
line. Be sure the condensate trap includes a water seal.
5. Check the temperature of both supply and discharge water.
Compare to Tables 17-18. If temperature is within range,
proceed. If temperature is outside the range, check the cool -
ing refrigerant pressures in Tables 17-18.
6. Check air temperature drop across the coil when compressor
is operating. Air temperature drop should be between 15°F
and 25°F.
7. Disable cooling mode and wait a period of 5 minutes to allow
system pressures to equalize.
HEATING MODE START-UP
See Tables 17 and 18 for typical unit operating pressures and
temperatures.
1. After waiting for a period of 5 minutes after the cooling cycle,
use the thermostat or DDC control to operate the unit in the
heating cycle. Refer to Table 16 for operating limits. Allow
the unit to run for a minimum of five minutes and record the
operating data.
2. Check for water leaks and vibration.
3. Check for warm air delivery at unit grille a few minutes after
the unit has begun to operate.
4. Verify that the compressor is on and that the water flow rate is
correct by measuring pressure drop through the heat
exchanger using P/T plugs.
5. Check the temperature of both supply and discharge water.
Compare to Tables 17-18. If temperature is within range,
proceed. If temperature is outside the range, check the cool -
ing refrigerant pressures in Tables 17-18.
6. Check air temperature rise across the coil when compressor is
operating. Air temperature rise should be between 20°F and
30°F.
7. Disable heating mode.
Table 17 — Typical Air Temperature Rise/Fall Ranges
a
NOTE(S):
a. This chart shows approximate air temperatures rise/fall for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system
charge. This chart assumes rated flow air and rated water flow. Heating data at entering fluid temperatures below 50°F assumes the use of antifreeze. As a result of
continuing research and development, specifications are subject to change without notice.
ENTERING FLUID TEMP. (°F)
COOLING HEATING
ENTERING AIR TEMP (°F) AIR TEMP DROP (°F) ENTERING AIR TEMP (°F) AIR TEMP RISE (°F)
30
— — 60 15.9 to 23.5
— — 70 13.5 to 22.9
— — 80 14.8 to 22.4
40
75/63 20.6 to 25.0 60 18.5 to 26.7
80/67 21.6 to 25.6 70 17.9 to 26
85/71 22.5 to 26.2 80 17.2 to 25.5
50
75/63 20.3 to 24.4 60 21.3 to 30
80/67 20.6 to 24.4 70 23.3 to 33
85/71 21.5 to 25.2 80 22.5 to 32.3
60
75/63 19.0 to 23.2 60 27 to 37.6
80/67 20.2 to 23.8 70 26.1 to 37.1
85/71 20.8 to 24.5 80 25.2 to 36.2
70
75/63 18.5 to 22.5 60 30 to 41.7
80/67 19.3 to 23.2 70 29 to 40.8
85/71 20.5 to 23.9 80 28 to 39.9
80
75/63 18.8 to 22.2 — —
80/67 19.1 to 23 — —
85/71 20.3 to 23.6 — —
85
75/63 18.8 to 22.2 — —
80/67 19.1 to 23 — —
85/71 20.3 to 23.6 — —
90
75/63 19 to 21.8 — —
80/67 18.9 to 22.7 — —
85/71 20 to 23.3 — —
100
75/63 17.2 to 21.3 — —
80/67 18.4 to 22.1 — —
85/71 19.5 to 22.7 — —
110
75/63 16 to 20.7 — —
80/67 17.1 to 21.4 — —
85/71 18.2 to 22.2 — —