United cool air C13-Series, Инструкция по установке, эксплуатации и обслуживанию

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Installation, Operation and Maintenance Manual
C13-Series
16 Subject to change without notice. 10.20-IM (0818)
NOMINAL
PIPE SIZE
STD. STEEL PIPE
VOLUME
GAL./FT.
TYPE L
COPPER TUBE
VOLUME GAL./FT.
1/2" .0157 .0121
5/8" —— .0181
3/4" .0277 .0251
1" .0449 .0429
1-1/4" .0779 .0653
1-1/2" .1060 .0924
2" .1740 .1610
2-1/2" .2490 .2480
UNIT � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � _______Gallons
Pipe ( “) ______Gallons/ft x ______ft = _______Gallons
Pipe ( “) ______Gallons/ft x ______ft = _______Gallons
Pipe ( “) ______Gallons/ft x ______ft = _______Gallons
TOTAL = ______ Gallons
9� Calculate the volume of de-scaler required:
Water Quantity = 1/2 Total Gallons = _____Gallons
De-Scaler Quantity = 1/2 Total Gallons = _____Gallons
10�
Make sure pump is primed�
11� Circulate the required quantity until fluid characteristics
indicate that de-scaling process is complete�
Manufacturer’s instructions will provide details on this�
12� Disconnect pump, hoses and tank from heat
exchanger�
13�
Flush entire water system with water�
14� Return heat exchanger and system components to
service. Check all valves and fitting connections.
15� Record performance values:
Before After
Pressure Drop ____________Psig
___________ Psig
Entering Temp� ____________°F ___________ °F
Leaving Temp� _____________°F ___________ °F
Blowers
Disconnect power and lockout service before doing any
service or maintenance�
Air-cooled units are provided with adjustable belt drive
blower packages for both the evaporator and condensing
sections� Check that the blower wheel is tight on the shaft
and does not contact the housing� Bearings are permanently
sealed, but should be checked periodically for signs of wear�
Check for restrictions or foreign material in the air circuit�
The drive may be adjusted for different static pressures� If
such an adjustment is made, check that the motor current
draw does not exceed the motor nameplate current by more
than 10%�
Heat
Exchanger
Cleaning
Solution
Pump
Figure 9: Cleaning Process Diagram