Page 84
XP25
Emergency 24VAC System Operation
The
Y
and
O
terminals located on the outdoor control allow the outdoor unit to be cycled ON and OFF using 24VAC inputs. The
outdoor unit will operate at 100% capacity in this configuration.
NOTE -
Defrost operation will not have any indoor discharge air tempering due to the lack of a W1 out terminal.
The following wiring diagrams display the wiring changes needed to switch a full communicating system to a partial
communicating system with the XP25 running in emergency mode (24VAC inputs to outdoor unit).
Communicating Air
Handler or
Furnance
24VAC Thermostat
RSBus
Communicating Air
Handler or
Furnance
iComfort Wi
−
Fi
THERMOSTAT
NOTE 1
C
Y
R
XP25 UNIT
O
XP25 UNIT
NOTES
:
1. Move two wires on both indoor and outdoor controls from terminals
i+
to
Y1
and
i-
to
O
for 24VAC operation on heat pump and indoor unit.
2. Do not disconnect wires from the XP25
R
and
C
terminals, both are required.
3. Cut R to O link on indoor control.
NOTE 2
iComfort Wi-Fi
®
Thermostat
Communicating Air Handler and XP25
XC25
XP25
CUT LINK
DO NOT CUT
NOTE 3
Emergency 24VAC
(Non-Communicating Mode)
Figure 62. Thermostat Communication Mode
Содержание XP25-024-230-01
Страница 46: ...Page 46 XP25 Typical Unit Wiring Diagrams Figure 24 Typical Unit Wiring XP25 024 and 036...
Страница 47: ...Page 47 XP25 Figure 25 Typical Unit Wiring XP25 048 and 060...
Страница 73: ...Page 73 XP25 Perform DC volt checks 19 23 VDC between FAN PWM and COM Figure 54 VAC Voltage Check...
Страница 89: ...Page 89 XP25 Figure 67 XP25 Charging Sticker...
