Thermostat Chart - Two Stage Ac - Variable Speed Furnaces - York CZH Installation Manual

835965-UIM-C-0814
AC 31B Two Stage Air Conditioner – Variable Speed Air Handler
THERMOSTAT
*DN22C00124
C
24 – Volt Common
Y
First Stage Compressor First Stage Compressor
R
24 – Volt Hot
G
Fan
W
First Stage Heat
W2
Second Stage Heat
Y2
Second Stage
Compressor
Open on Humidity Rise
Connection of the "C" Step 1 of Thermostat User
Terminal, 24-Volt Configuration Menu must
Common,
is optional when used with Connection of the "C"
batteries
is optional when used with
FIGURE 17: Thermostat Chart - Two Stage AC – Variable Speed Furnaces
16
THERMOSTAT
*DP22U70124
C
24 – Volt Common
Y1
R
24 – Volt Hot
G
Fan
E/W1
First Stage Heat
W2
Second Stage Heat
Y2
Second Stage
Compressor
External Humidistat
(Optional)
24VAC Humidifier
Relay
(Optional)
24VAC
Electronic Air Cleaner
Relay
(Optional)
be set to MS 2
Terminal, 24-Volt
Common,
batteries
ID MODELS
AHV
MV
VARIABLE SPEED
AIR HANDLER
VARIABLE SPEED
AIR HANDLER CONTROL
COM
24 – Volt Common
Y1
Single Stage
Compressor
R
24 – Volt Hot
G
Fan
W1
First Stage Heat
W2
Second Stage Heat
O
Reversing Valve
Energized in Cool
X/L
Malfunction Light
Y/Y2
Second or Full
Stage Compressor
HUM
Humidity Switch
Open on Humidity Rise
HUM OUT
(24VAC out)
Humidifier
EAC (24VAC out)
Electronic Air Cleaner
Move the HUM STAT
jumper to "YES"
if humidistat is to be used.
Refer to AH
documentation for W1 and
W2 electric heat staging
options.
TWO STAGE
AIR
CONDITIONER
C
24 – Volt Common
Y1
First Stage Compressor
R
24 – Volt Hot
Y2
Second Stage
Compressor
A0215-002
Johnson Controls Unitary Products