Carrier Aquazone 50PTH024 Installation, Start-Up And Service Instructions Manual page 28

STANDARD COMPONENTS LEGEND
AUX — Auxiliary Relay (For Loop Pump, Etc.)
BM — Blower Motor
CBR — 24V Circuit Breaker
CC — Compressor Contactor
COMP — Compressor
CS — Condensate Sensor (In Drain Pan)
FS — Freeze Sensor
HPS — High Pressure Switch
LED — Unit Status LED
LP — Loop Pump
RV — Reversing Valve (Heat Pumps)
OPTIONAL COMPONENTS LEGEND
[ ] DS — Disconnect Switch
[ ] LWV — Leaving Water Valve
High Temp Suction Limit
[ ] HSL —
(With Hot Gas Bypass Only)
Heat Recovery Package,
[ ] HRP —
Includes:
HRPM — Heat Recovery Pump
LGL — Low Gas Temp Limit
HWL — Hot Water Linit
— ON/Off Switch Overload
SWT
Protection
PM — Phase Monitor
Main Terminal Block
[ ] TB2 —
(460-v Units Only)
Terminal Block Disconnect
[ ] TB3 —
Switch (460-v Units only)
[ ] VES — Valve End Switch
Fig. 26 — Constant Airflow ECM Motor, Three-Phase/Single-Stage, Two-Step, WSHP Open Control
UPM STATUS LED — BLINK CODES
1 High Pressure Fault
2 Low Pressure Fault
3 Condenser Freeze Condition
4 Condensate Overflow Fault
5 Brown Out Fault
6 Evaporator Freeze Condition
Factory Wiring
Field Wiring
NOTES:
1. See unit name plate for electrical rating.
2. All field wiring must be in accordance with NEC-NFPA #70, Copper conductors only-Conducteurs en
cuivre seulement.
3. 208/230-v units are factory wired for 230-v operation. For 208-v operation. Remove lead from 240
terminal and connect it to 208. Cap all unused terminals.
4. For alternate EMS coil voltages consult factory.
5. UPM-I includes built in:
270-300 second random start
300 second delay on break
120 second low pressure bypass.
6. "TEST" dip switch reduces delays to 10 sec when set to yes. must be set to "no" for normal opera-
tion.
7. "FREEZE SENSOR" on condenser will operate at 26°F by default; if 15°F operation is required,
Jumper R30 must be cut. If FREEZE SENSOR is not installed, a jumper shall be installed between
the FREEZE1 or FREEZE2 sensor terminals.
8. "ALARM OUTPUT" dip switch must be set to "PULSE" if blinking T-STAT service light is desired.
9. Default settings for UPM board from factory shown. Also see installation manual.
10. Alarm output is normally open (no) dry contact. if 24 VAC is needed, connect R to ALR-COM termi-
nal; 24VAC will be sensed on the ALR-OUT when the unit is in alarm condition. Output will be pulsed
if pulse is selected.
11. Terminal block TB3 located in side of disconnect switch box.
12. Check for proper phase rotation on units with scroll compressors, reverse rotation will damage the
compressor and void unit warranty.
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