Operating Limits; Operation Logic Data Table - York AFFINITY YAFT026 Installation Manual

Operating Limits

Operating Limits
Air Limits
Min. Ambient Air
Rated Ambient Air
Max. Ambient Air
Min. Entering Air
Rated Entering Air db/wb 80.6/66.2
Max. Entering Air db/wb
Water Limits
Min. Entering Water
Normal Entering Water
Max. Entering Water

Operation Logic Data Table

Operation Logic Table
STG1
Compressor
Reversing Valve
Aux Heat
Acc Relay
Fan Relay (PSC)
Loop Pump
Hot Water
Med Low
5-Speed ECM Speed
ECM Speed Med
T-Stat Signal
AFFINITY & AFFINITY ADVANCED SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL
Cooling Heating
(°F) (°C) (°F)
45 7.2 45
80 26.7 70
100 37.8 85
50 10.0 40
27/19 68
110/83 43/28.3 80
30 -1.1 20
50-110 10-43.3 30-70
120 48.9 90
Heating
STG2 STG3
On On On
Off Off Off
Off Off Staged
On On On
On On On
On On On
On On Off
Med High High
High Aux
Y1 Y1,Y2 Y1,Y2,W
(°C)
7.2
21.1
29.4
4.4
NOTE: Minimum/maximum limits are only for start-up conditions, and
20.0
are meant for bringing the space up to occupancy temperature. Units
26.7
are not designed to operate at the minimum/maximum conditions on
a regular basis. The operating limits are dependent upon three primary
-6.7 factors: 1) water temperature, 2) return air temperature, and 3) ambient
temperature. When any of the factors are at the minimum or maximum
-1.1
levels, the other two factors must be at the normal level for proper and
32.2
reliable unit operation.
EMERG Fan Only
Off Off
Off Off
Staged Off
Off Off
On On
Off Off
Off Off
High Low
Aux Low
W G
65
Cooling
STG1 STG2 Reheat
On On On
On On On
Off Off Off
On On On
On On On
On On On
On On NA
Med Low Med High High
Med High High
Y1,O Y1,Y2,O DH
Fan Only
Off
On
Off
Off
On
Off
Off
Low
Low
G
5/11/12