100
Step 4 — Fill the Chilled Water Loop
The maximum evaporator water side pressure is 300 psig
(2068 kPa). Check the pressure rating for all of the chilled
water devices installed. Do not exceed the lowest pressure
rated device.
BRINE EVAPORATOR OPTION . . — Add sufficient inhib-
ited glycol or other suitable corrosion-resistant antifreeze solu-
tion to prevent evaporator freeze-up.
WATER SYSTEM CLEANING — Proper water system
cleaning is of vital importance. Excessive particulates in the
water system can cause excessive pump seal wear, reduce or
stop flow, and cause damage of other components. Ideally, the
chilled water loop will be cleaned before the unit is connected.
1. Install a temporary bypass around the chiller to avoid
circulating dirty water and particulates into the chiller
during the flush. Use a temporary circulating pump
during the cleaning process. Also, be sure that there is
capability to fully drain the system after cleaning. See
Fig. 42.
2. Be sure to use a cleaning agent that is compatible with
all system materials. Be especially careful if the system
contains any galvanized or aluminum components. Both
detergent-dispersant and alkaline-dispersant cleaning
agents are available.
3. It is recommended to fill the system through a water me-
ter. This provides a reference point for the future for loop
volume readings, and it also establishes the correct quan-
tity of cleaner needed in order to reach the required
concentration.
4. Use a feeder/transfer pump to mix the solution and fill the
system. Circulate the cleaning system for the length of
time recommended by the cleaning agent manufacturer.
a. After cleaning, drain the cleaning fluid and flush the
system with fresh water.
b. A slight amount of cleaning residue in the system can
help keep the desired, slightly alkaline, water pH of 8
to 9. Avoid a pH greater than 10, since this will
adversely affect pump seal components.
c. A side stream filter is recommended (see Fig. 43)
during the cleaning process. Filter side flow rate
should be enough to filter the entire water volume
every 3 to 4 hours. Change filters as often as neces-
sary during the cleaning process.
d. Remove temporary bypass when cleaning is complete.
WATER TREATMENT — Fill the fluid loop with water (or
brine) and a corrosion-resistant inhibitor suitable for the water
of the area. Consult the local water treatment specialist for
characteristics of system water and a recommended inhibitor
for the evaporator fluid loop.
Untreated or improperly treated water may result in corrosion,
scaling, erosion, or algae. The services of a qualified water
treatment specialist should be obtained to develop and monitor
a treatment program.
NOTE: Do not use automobile anti-freeze, or any other fluid
that is not approved for heat exchanger duty. Only use appro-
priately inhibited glycols, concentrated to provide adequate
protection for the temperature considered.
SYSTEM PRESSURIZATION — A proper initial cold fill
pressure must be established before filling of the unit. The
initial cold fill pressure is the pressure applied at the filling
point to fill a system to its highest point, plus a minimum
pressure at the top of the system (4 psig minimum [27.6 kPa])
to operate air vents and positively pressurize the system. The
expansion tank is very important to system pressurization. The
expansion tank serves several purposes:
1. Provides NPSHR (Net Positive Suction Head Required)
for the pump to operate satisfactorily.
2. Sets system pressure.
3. Accommodates expansion/contraction of water due to
temperature changes.
4. Acts as a pressure reference for the pump.
The expansion tank pressure must be set BEFORE the sys-
tem is filled. Follow the manufacturer’s recommendation for
instructions on setting the pressure in the expansion tank.
Once the system is pressurized, the pressure at the connection
point of the expansion tank to water piping will not change
unless the water loop volume changes (either due to addition/
IMPORTANT: Before starting unit, be sure all of the
air has been purged from the system.
CAUTION
In low ambient (below 32°F [0°C]) and/or low leaving
fluid temperature applications (below 40°F [4.4°C]), a suit-
able antifreeze solution of the proper concentration for the
specific operating conditions must be used as the fluid cir-
culated through the evaporator to prevent freezing and
damage to the system. Failure to operate the system with
an antifreeze solution of the proper concentration will
impair or otherwise negatively affect the warranty should
damage result from freezing.
CAUTION
Water must be within design flow limits, clean, and treated
to ensure proper chiller performance and reduce the poten-
tial of tube damage due to corrosion, scaling, erosion, and
algae. Carrier assumes no responsibility for chiller damage
resulting from untreated or improperly treated water.
Fig. 42 — Typical Set Up for Cleaning Process
x
x
DILUTED
CLEANING
AGENT
SYSTEM
POT FEEDER AND
TRANSFER PUMP
30XV UNIT
TEMPORARY
BYPASS
TEMPORARY
PUMP
TO DRAIN
Fig. 43 — Cleaning Using a Side Stream Filter
a30-4412
x
x
DILUTED
CLEANING
AGENT
SYSTEM
SIDE
STREAM
FILTER
POT FEEDER AND
TRANSFER PUMP
30XV UNIT
TEMPORARY
PUMP
TEMPORARY
BYPASS
TO DRAIN
Summary of Contents for 30XV140-500
Page 5: ...5 Fig 2 30XV 140 160 180 Std Tier 140 Mid Tier Air Cooled Chiller...
Page 6: ...6 Fig 2 30XV 140 160 180 Std Tier 140 Mid Tier Air Cooled Chiller cont...
Page 7: ...7 Fig 2 30XV 140 160 180 Std Tier 140 Mid Tier Air Cooled Chiller cont...
Page 8: ...8 Fig 3 30XV 140 High Tier 160 180 Mid Tier 200 Std Tier Air Cooled Chiller...
Page 9: ...9 Fig 3 30XV 140 High Tier 160 180 Mid Tier 200 Std Tier Air Cooled Chiller cont...
Page 10: ...10 Fig 3 30XV 140 High Tier 160 180 Mid Tier 200 Std Tier Air Cooled Chiller cont...
Page 11: ...11 Fig 4 30XV 160 180 High Tier 200 Mid Tier Air Cooled Chiller...
Page 12: ...12 Fig 4 30XV 160 180 High Tier 200 Mid Tier Air Cooled Chiller cont...
Page 13: ...13 Fig 4 30XV 160 180 High Tier 200 Mid Tier Air Cooled Chiller cont...
Page 14: ...14 Fig 5 30XV 200 High Tier Air Cooled Chiller...
Page 15: ...15 Fig 5 30XV 200 High Tier Air Cooled Chiller cont...
Page 16: ...16 Fig 5 30XV 200 High Tier Air Cooled Chiller cont...
Page 17: ...17 Fig 6 30XV 225 Std Tier Air Cooled Chiller...
Page 18: ...18 Fig 6 30XV 225 Std Tier Air Cooled Chiller cont...
Page 19: ...19 Fig 6 30XV 225 Std Tier Air Cooled Chiller cont...
Page 20: ...20 Fig 7 30XV 225 Mid Tier Air Cooled Chiller...
Page 21: ...21 Fig 7 30XV 225 Mid Tier Air Cooled Chiller cont...
Page 22: ...22 Fig 7 30XV 225 Mid Tier Air Cooled Chiller cont...
Page 23: ...23 Fig 8 30XV 225 High Tier Air Cooled Chiller...
Page 24: ...24 Fig 8 30XV 225 High Tier Air Cooled Chiller cont...
Page 25: ...25 Fig 8 30XV 225 High Tier Air Cooled Chiller cont...
Page 26: ...26 Fig 9 30XV 250 275 Std Tier Air Cooled Chiller...
Page 27: ...27 Fig 9 30XV 250 275 Std Tier Air Cooled Chiller cont...
Page 28: ...28 Fig 9 30XV 250 275 Std Tier Air Cooled Chiller cont...
Page 29: ...29 Fig 10 30XV 250 275 Mid Tier 300 Std Tier Air Cooled Chiller...
Page 30: ...30 Fig 10 30XV 250 275 Mid Tier 300 Std Tier Air Cooled Chiller cont...
Page 31: ...31 Fig 10 30XV 250 275 Mid Tier 300 Std Tier Air Cooled Chiller cont...
Page 32: ...32 Fig 11 30XV 250 275 High Tier 300 Mid Tier 325 Std Tier Air Cooled Chiller...
Page 33: ...33 Fig 11 30XV 250 275 High Tier 300 Mid Tier 325 Std Tier Air Cooled Chiller cont...
Page 34: ...34 Fig 11 30XV 250 275 High Tier 300 Mid Tier 325 Std Tier Air Cooled Chiller cont...
Page 35: ...35 Fig 12 30XV 300 High Tier 325 Mid Tier Air Cooled Chiller...
Page 36: ...36 Fig 12 30XV 300 High Tier 325 Mid Tier Air Cooled Chiller cont...
Page 37: ...37 Fig 12 30XV 300 High Tier 325 Mid Tier Air Cooled Chiller cont...
Page 38: ...38 Fig 13 30XV 325 High Tier Air Cooled Chiller...
Page 39: ...39 Fig 13 30XV 325 High Tier Air Cooled Chiller cont...
Page 40: ...40 Fig 13 30XV 325 High Tier Air Cooled Chiller cont...
Page 41: ...41 Fig 14 30XV 350 Standard Tier Air Cooled Chiller...
Page 42: ...42 Fig 14 30XV 350 Standard Tier Air Cooled Chiller cont...
Page 43: ...43 Fig 14 30XV 350 Standard Tier Air Cooled Chiller cont...
Page 44: ...44 Fig 15 30XV 350 Mid Tier Air Cooled Chiller...
Page 45: ...45 Fig 15 30XV 350 Mid Tier Air Cooled Chiller cont...
Page 46: ...46 Fig 15 30XV 350 Mid Tier Air Cooled Chiller cont...
Page 47: ...47 Fig 16 30XV 350 High Tier Air Cooled Chiller...
Page 48: ...48 Fig 16 30XV 350 High Tier Air Cooled Chiller cont...
Page 49: ...49 Fig 16 30XV 350 High Tier Air Cooled Chiller cont...
Page 50: ...50 Fig 17 30XV 400 Standard Tier Air Cooled Chiller...
Page 51: ...51 Fig 17 30XV 400 Standard Tier Air Cooled Chiller cont...
Page 52: ...52 Fig 17 30XV 400 Standard Tier Air Cooled Chiller cont...
Page 53: ...53 Fig 18 30XV 400 Mid 450 Standard Tier Air Cooled Chiller...
Page 54: ...54 Fig 18 30XV 400 Mid 450 Standard Tier Air Cooled Chiller cont...
Page 55: ...55 Fig 18 30XV 400 Mid 450 Standard Tier Air Cooled Chiller cont...
Page 56: ...56 Fig 19 30XV 400 High 450 Mid 500 Std Tier Air Cooled Chiller...
Page 57: ...57 Fig 19 30XV 400 High 450 Mid 500 Std Tier Air Cooled Chiller cont...
Page 58: ...58 Fig 19 30XV 400 High 450 Mid 500 Std Tier Air Cooled Chiller cont...
Page 59: ...59 Fig 20 30XV 450 High 500 Mid Tier Air Cooled Chiller...
Page 60: ...60 Fig 20 30XV 450 High 500 Mid Tier Air Cooled Chiller cont...
Page 61: ...61 Fig 20 30XV 450 High 500 Mid Tier Air Cooled Chiller cont...
Page 62: ...62 Fig 21 30XV Split Unit 40A B High 45A B Mid 50A B Standard Tier Air Cooled Chiller...
Page 63: ...63 Fig 21 30XV Split Unit 40A B High 45A B Mid 50A B Standard Tier Air Cooled Chiller cont...
Page 64: ...64 Fig 21 30XV Split Unit 40A B High 45A B Mid 500A B Standard Tier Air Cooled Chiller cont...
Page 65: ...65 Fig 22 30XV Split Unit 45A B High 50A B Mid Tier Air Cooled Chiller...
Page 66: ...66 Fig 22 30XV Split Unit 45A B High 50A B Mid Tier Air Cooled Chiller cont...
Page 67: ...67 Fig 22 30XV Split Unit 45A B High 50A B Mid Tier Air Cooled Chiller cont...
Page 103: ...103 Fig 44 Field Control and Power Wiring...
Page 104: ...104 Fig 44 Field Control and Power Wiring cont...