York EX Series - TABLE 33 - Changeover Valve Operation

JOHNSON CONTROLS
127
SECTION 6 – OPERATION
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
6
TABLE 33 - CHANGEOVER VALVE OPERATION
OPERATION
MODE
VALVE OPERATION/LOCATION
HG ->E
Ref
E->A
Ref
LG ->C
Ref
Return
HG Sol
Supply
HG Sol
Return
RHW
Ref
Supply
RHW
Ref
Return
LG->HG
Ref
Return
Purge valves
Cooling X X Ø Ø Ø X X X Set to automatic
purge of the
purging tank
Heating Ø Ø Ø Ø Ø X X X Close V10, V11,
V12. V13. V14,
V15, V16
Simultaneous
cooling and
residential hot
water supply
X X Ø Ø Ø Ø Ø X Set to automatic
purge of the
purging tank
Simultaneous
heating and
residential hot
water supply
Ø Ø Ø Ø Ø Ø Ø X Close V10, V11,
V12. V13. V14,
V15, V16
Residential hot
water supply (sole
mode)
X X X X X Ø Ø Ø Close V10, V11,
V12. V13. V14,
V15, V16