Carrier 17 Start Up & Operation Manual page 37

MONITORED PARAMETER
TEMPERATURE SENSORS
OUT OF RANGE
PRESSURE TRANSDUCERS
OUT OF RANGE
COMPRESSOR DISCHARGE
TEMPERATURE
MOTOR WINDING TEMPERATURE
BEARING TEMPERATURE
EVAPORATOR REFRIGERANT
TEMPERATURE
(Temp converted from Pressure
Reading)
TRANSDUCER VOLTAGE
CONDENSER PRESSURE — SWITCH
— CONTROL 215 psig (1482 kPa)
OIL PRESSURE — SWITCH
— CONTROL
LINE VOLTAGE — HIGH
— LOW
— SINGLE-CYCLE
COMPRESSOR MOTOR LOAD
(% Compressor Amps)
STARTER ACCELERATION TIME
(Determined by inrush current
going below 100% compressor
motor load)
STARTER TRANSITION
CONDENSER FREEZE
PROTECTION
IMPELLER CLEARANCE
MOTOR LEAK DETECTOR*
Flow Switches (Field Supplied)
Operate water pumps with machine off. Manually re-
duce water flow and observe switch for proper cut-
out. Safety shutdown occurs when cutout time ex-
ceeds 3 seconds.
Carrier Part No. HK06ZC033
*Applicable to open-drive machines only.
Table 3 — Protective Safety Limits and Control Settings
–40 to 245 F (–40 to 118.3 C)
0.08 to 0.98 Voltage Ratio
220 F (104.4 C)
220 F (104.4 C)
220 F (104.4 C)
33 F (for water chilling) (0.6° C)
Brine Refrigerant Trippoint (set point adjustable
from 0 to 40 F [–18 to 4 C] for brine chilling)
4.5 vdc 5.5 vdc
218 ± 7 psig (1503 ± 48 kPa),
reset at 120 ± 10 (827 ± 69 kPa)
Cutout 11 psid (76 kPad) ± 1.5 psid (10.3 kPad)
Cut-in 16.5 psid (114 kPad) ± 4 psid (27.5 kPad)
Cutout 15 psid (103 kPad)
Alert 18 psid (124 kPad)
110% for one minute
90% for one minute or 85% for 3 seconds
50% for one cycle
110% for 30 seconds
10% with compressor running
10% with compressor off
45 seconds
10 seconds
75 seconds
Energizes condenser pump relay if condenser refrigerant temperature
or condenser entering water temperature is below the configured con-
denser freeze point temperature. Deenergizes when the temperature
is 5 F (3 C) above condenser freeze point temperature.
Displacement switch open
Water from motor cooling is leaking
CUT-OFF
SETTING
ADJUSTMENT
SCREW
LIMIT
NOTE: Dimensions in parentheses are in
millimeters.
37
APPLICABLE COMMENTS
Must be outside range for 2 seconds
Must be outside range for 2 seconds.
Ratio = Input Voltage ÷ Voltage Reference
Preset, alert setting configurable
Preset, alert setting configurable
Preset, alert setting configurable
Preset, configure chilled medium for water
(Service1 table)
Configure chilled medium for brine (Service1
table). Adjust brine refrigerant trippoint for
proper cutout
Preset (Read voltage at terminals 34 and 35
on PSIO module)
Preset
Preset
Preset, no calibration needed
Preset
Preset, based on transformed line voltage to
24 vac rated-input to the Starter Management
Module. Also monitored at PSIO power input.
Preset
Preset
Preset
For machines with reduced voltage mechanical
and solid-state starters
For machines with full voltage starters
(Configured on Service1 table)
Reduced voltage starters only
CONDENSER FREEZE POINT configured in
Service01 table with a default setting of
34 F (1 C).
Thrust movement excessive
Water sensors are installed only on open-drive
motors that use water cooling. (Totally enclosed,
water-to-air cooled [TEWAC] motors)
Carrier Part No. HK06ZC001