Pre-Start-Up; System Check - Carrier AQUASNAP 30RB060-390 Controls, Start-Up, Operation, Service And Troubleshooting Instructions

MODE KEYPAD ENTRY
CONFIGURATION
NOTE: Bold values indicate sub-mode level.

PRE-START-UP

IMPORTANT: Complete the Start-Up Checklist
for 30RB Liquid Chillers at the end of this publication.
The checklist assures proper start-up of a unit, and
provides a record of unit condition, application
requirements, system information, and operation at
initial start-up.
Do not attempt to start the chiller until the following checks
have been completed.

System Check

1. Check auxiliary components, such as the chilled fluid
circulating pump, air-handling equipment, or other
equipment to which the chiller supplies liquid are opera-
tional. Consult manufacturer's instructions. If the unit has
field-installed accessories, be sure all are properly
installed and wired correctly. Refer to unit wiring
diagrams.
2. Open compressor suction (if equipped) and discharge
shutoff valves.
3. Open liquid line shut off valves.
4. Fill the chiller fluid circuit with clean water (with recom-
mended inhibitor added) or other non-corrosive fluid to
Table 32 — Externally Powered Demand Limit Configuration
DISPLAY
DISP
ENTER
UNIT
SERV
OPTN
RSET Reset Cool and Heat Tmp
CRST
ENTER
HRST
DMDC Demand Limit Select
0 None
ENTER
0 None
ENTER
2 4-20 mA Input
2
ENTER
DMDC
ESCAPE
DMMX mA for 100% Demand Limit
0
ENTER
0
ENTER
4.0
DMMX
ESCAPE
DMZE mA for 0% Demand Limit
0
ENTER
0
ENTER
20.0
DMZE
ESCAPE
ITEM EXPANSION
Flashing to indicate Edit mode. May require Password
Use up arrows to change value to 2.
Accepts the change.
Flashing to indicate Edit mode
Use up arrows to change the value to 4.
Flashing to indicate Edit mode
Use up arrows to change value to 20.
be cooled. Bleed all air out of high points of system. An
air vent is included with the cooler. If outdoor tempera-
tures are expected to be below 32 F (0° C), sufficient
inhibited propylene glycol or other suitable corrosion
inhibited antifreeze should be added to the chiller water
circuit to prevent possible freeze-up.
The chilled water loop must be cleaned before the unit is
connected. Units supplied with the accessory hydronic
package include a run in screen. If the run-in screen is left
in the suction guide/strainer, it is recommended that the
Service Maintenance be set to alert the operator within
24 hours of start-up to be sure that the run-in screen in the
suction guide/strainer is removed. To set the time for the
parameter, go to Time Clock
for this item are counted as days. Refer to the hydronic
pump package literature if unit is equipped with the
optional hydronic pump package.
5. Check tightness of all electrical connections.
6. Oil should be visible in the compressor sight glass. An
acceptable oil level in the compressor is from
full sight glass. Adjust the oil level as required. No oil
should be removed unless the crankcase heater has been
energized for at least 24 hours. See Oil Charge section for
Carrier-approved oils.
7. Electrical power source must agree with unit nameplate.
43
COMMENT
 
MCFG W.FIL. Values
3 / to 7 /
4 8