Unit Startup - York YAWT100 Installation Manual

Unit Startup

Verify the following:
• High voltage is correct and matches nameplate
• Fuses, breakers and wire size are correct
• Low voltage wiring is complete
• Piping is complete and the water system has been
cleaned and flushed
• Air is purged from closed loop system
• Isolation valves are open and water control valves or loop
pumps are wired
• Service/access panels are in place
• Transformer has been switched to lower voltage tap if
needed (208/230 volt units only)
• Unit controls are in "off" position
• Flow switches are installed and ready
• Freeze detection setpoints have been set in the
microprocessor
WARNING: Verify ALL water controls are open
and allow water flow PRIOR to engaging the
compressor. Failure to do so can result in freezing
the heat exchanger or water lines causing
permanent damage to the unit.
Powering The Controls
Initial Configuration of the Unit
Before operating the unit, apply power and complete
the following Aurora Startup procedure for the controls
configuration. An AID Tool is recommended for setup,
configuration and troubleshooting, especially with an Aurora
'Advanced' Control. AID Tool version 2.05 or greater is
preferred.
Note: The configuration will need to be done on both
ABC-A and ABC-B control boards.
1. Configure Aurora Screen
a. In advanced controls - Confirm AXB is added and
communicating.
2. Aurora Setup Screen
a. Sensor Kit Setup
i. Activate energy option - Load pump and Aux
heat current sensor activation
ii. Line Voltage calibration – Voltmeter required to
calibrate line voltage during heating or cooling.
Refer to Line Voltage Calibration in this manual
for more details.
b. Smart Grid Setup – Select Action option for utility
received on-peak signal'
AFFINITY DUAL CAPACITY HYDRONIC INSTALLATION MANUAL
Configuring the Sensor Kits
The Aurora Advanced Control allows Refrigeration, Energy,
and Performance Monitoring sensor kits. The following
description is for field activation of a factory installation of
the sensor kits.
Energy Monitoring
(Standard Sensor Kit on most 'Advanced' models)
The Energy Monitoring Kit AXB-A includes two current
transducers (load pump and AUX heat) added to the
existing two compressor A sensors. Energy Monitoring Kit
AXB-B includes two current transducers (source pump and
AUX 2) added to the existing two compressor B sensors, so
that the complete power usage of the heat pump can be
measured. The AID Tool provides a line voltage calibration
procedure to improve accuracy. This information can be
displayed on the AID Tool. Ensure the Energy Kit has been
enabled by accessing the 'Sensor Kit Setup" in the AID Tool
and complete the following:
a. Activate 'Energy Option' to activate the sensors for
compressor (2), load/source and AUX/ AUX2 current.
b. Line Voltage Calibration – Voltmeter required to
calibrate line voltage during heating or cooling. Refer
to Line Voltage Calibration in this manual for more
details.
i. Turn on Unit in Heating or Cooling .
ii. Use multimeter at L1 and L2 to measure line
voltage
iii. In the Sensor Kit Setup screen adjust the 'Base
Voltage' to the nearest value to that is measured
iv. Then use the 'Fine Adjust' to select the exact
voltage being measured at L1 and L2.
v. Exit 'Sensor Setup' Screen
c. Energy monitoring can be read on the following
component:
i. AID Tool – instantaneous information only
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