Operating Parameters - York YAFS012 Installation Manual

AFFINITY SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL
Unit Startup cont.
9. Adjust the cooling setpoint above the room temperature and verify
that the compressor and water valve or loop pumps deactivate.
10. Initiate a control signal to place the unit in the heating mode.
Heating set point must be set above room temperature.
11. First stage heating will energize after a time delay.
12. Check the temperature of both the supply and discharge water
(see the Unit Operating Parameters tables).
13. Check for an air temperature rise of 12°F to 35°F across the air
coil, depending on the fan speed and entering water temperature.
14. If auxiliary electric heaters are installed, increase the heating
setpoint until the electric heat banks are sequenced on. All
stages of the auxiliary heater should be sequenced on when the
thermostat is in the Emergency Heat mode. Check amperage of
each element.
15. Adjust the heating setpoint below room temperature and verify
that the compressor and water valve or loop pumps deactivate.

Operating Parameters

Single Speed Models
Entering Water Water Flow
Temp °F gpm/ton
1.5
30
3.0
1.5
50
3.0
1.5
70
3.0
1.5
90
3.0
1.5
110
3.0
Entering Water Water Flow
Temp °F gpm/ton
1.5
30
3.0
1.5
50
3.0
1.5
70
3.0
1.5
90
3.0
1.5
110
3.0
NOTE: Cooling performance based on entering air temperatures of 80° F DB, 67° F WB.
Heating performance based on entering air temperature of 70° F DB.
Suction Pressure Discharge
psig Pressure psig
115 - 125 150 - 170
105 - 120 130 - 145
130 - 140 215 - 235
128 - 138 190 - 210
138 - 148 280 - 310
136 - 146 250 - 280
145 - 155 350 - 380
143 - 153 320 - 350
145 - 155 420 - 450
143 - 153 405 - 435
Suction Pressure Discharge
psig Pressure psig
73 - 85 270 - 305
77 - 90 280 - 315
97 - 110 290 - 325
102 - 115 300 - 335
130 - 145 320 - 355
135 - 150 325 - 360
150 - 160 350 - 390
155 - 165 365 - 405
16. During all testing, check for excessive vibration, noise or water
leaks. Correct or repair as required.
17. Set system to desired normal operating mode and set
temperature to maintain desired comfort level.
18. Instruct the owner/operator in the proper operation of the
thermostat and system maintenance.
NOTE: Be certain to fill out and forward all warranty
registration papers.
Cooling -- No Hot Water Generation
Superheat Subcooling
20 - 35 10 - 17
20 - 35 10 - 17
12 - 20 8 - 14
12 - 20 8 - 14
10 - 16 10 - 16
10 - 16 8 - 14
9 - 14 10 - 16
9 - 14 8 - 14
9 - 14 10 - 16
9 - 14 8 - 14
Heating - No Hot Water Generation
Superheat Subcooling
8 - 14 3 - 10
8 - 14 3 - 10
10 - 16 3 - 10
10 - 16 3 - 10
13 - 19 3 - 10
13 - 19 3 - 10
13 - 19 3 - 10
13 - 19 3 - 10
50
Water Temp Rise Air Temp Drop
°F °F DB
17 - 22 17 - 23
8 - 10 17 - 23
16 - 22 17 - 23
8 - 12 17 - 23
15 - 21 17 - 23
7 - 13 17 - 23
14 - 20 17 - 23
6 - 10 17 - 23
14 - 20 17 - 23
6 - 10 17 - 23
Water Temp Drop Air Temp Rise
°F °F DB
6 - 10 15 - 21
4 - 8 17 - 23
9 - 13 22 - 28
7 - 11 24 - 30
10 - 14 30 - 36
8 - 12 32 - 38
10 - 14 30 - 36
8 - 12 32 - 38
2/15/12