York YAFS012 Installation Manual page 49

Unit Startup cont.
Energy Monitoring (Standard Sensor Kit on most
'Advanced' models)
The Energy Monitoring Kit includes two current transducers (fan
and electric heat) added to the existing two compressor sensors
so that the complete power usage of the heat pump can be
measured. The AID Tool provides configuration detail for the type
of blower motor and a line voltage calibration procedure to improve
the accuracy. This information can be displayed on the AID Tool
or selected communicating thermostats. The TPCM32U04YRK
will display instantaneous energy use while the color touchscreen
TPCC32U01YRK will in addition display a 13 month history in
graph form. Ensure the Energy Kit has been enabled by accessing
the 'Sensor Kit Setup" in the AID Tool and complete the following:
a. Select 'Blower Energy' – PSC or ECM/5-Speed ECM
b. Activate 'Energy Option' to activate the sensors on
for compressor (2), fan and aux heat current sensor.
c. Select 'Pump' option of FC1, FC2, VS Pump,
VS+26-99, or open loop. This selects the pump
watts used in the calculation. Pump watts are not
measured but estimated.
d. 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
e. Energy monitoring can be read on any of the
following components:
i. AID Tool – instantaneous information only
ii. TPCM32U04YRK Communicating
Thermostat (B/W) - instantaneous
information only
iii. TPCC32U01YRK Color Touchscreen
Thermostat – Both Instantaneously and
historical (13 months)
Refrigerant Monitoring (optional sensor kit)
The optional Refrigerant Monitoring Kit includes two pressure
transducers, and three temperature sensors, heating liquid
line, suction temperature and existing cooling liquid line (FP1).
These sensors allow the measurement of discharge and suction
pressures, suction and liquid line temperatures as well as
superheat and subcooling. This information will only be displayed
on the AID Tool. Ensure the Refrigerant Monitoring has been setup
by accessing the 'Sensor Kit Setup" in the AID Tool.
AFFINITY SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL
Once sensors are installed for discharge pressure, suction
pressure, suction, liquid line cooling, liquid line heating and leaving
air temperature no further setup is required.
a. Turn on Unit in Heating or Cooling .
b. Use the AID Tool to view the refrigerant
performance in the 'Refrigerant Monitor' screen.
c. Refrigerant monitoring can be read on any of the
following components:
i. AID Tool – instantaneous information only
Performance Monitoring (optional sensor kit)
The optional Performance Monitoring Kit includes three
temperature sensors, entering and leaving water, leaving air
temperature and a water flow rate sensor. With this kit heat
of extraction and rejection will be calculated. This requires
configuration using the AID Tool for selection of water or antifreeze.
Ensure the Energy Kit has been enabled by accessing the 'Sensor
Kit Setup" in the AID Tool and complete the following:
a. Select 'Brine' – and then choose Water or
Antifreeze for the proper factor
b. Activate 'Flowmeter' to activate the flow sensor
select the appropriate 3/4 in., 1 in., or none.
c. Exit Sensor Kit Setup Screen.
d. Turn on Unit in Heating or Cooling .
e. Use the AID Tool to view the performance in the
'Performance Monitor' screen.
f. Performance monitoring can be read on any of the
following components:
i. AID Tool – instantaneous information only
Startup Steps
NOTE: Complete the Equipment Start-Up/Commissioning Check
Sheet during this procedure. Refer to thermostat operating
instructions and complete the startup procedure. Verify that the
compressor shipping bolt has been removed.
1. Initiate a control signal to energize the blower motor. Check
blower operation through the AID Tool.
2. Initiate a control signal to place the unit in the cooling mode.
Cooling setpoint must be set below room temperature.
3. First stage cooling will energize after a time delay.
4. Be sure that the compressor and water control valve or loop
pump(s) are activated.
5. Verify that the water flow rate is correct by measuring the
pressure drop through the heat exchanger using the P/T plugs
and comparing to unit performance data in catalog.
6. Check the temperature of both the supply and discharge water
(see the Unit Operating Parameters tables).
7. Check for an air temperature drop of 15°F to 25°F across the air
coil, depending on the fan speed and entering water temperature.
8. Decrease the cooling set point several degrees and verify high-
speed blower operation.
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