Hitachi RWM-(H)FSN3E, Руководство по обслуживанию

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5 Control system
SMGB0070 rev. 1 - 08/2011
133
5
Selection of cooling circuit minimum/maximum temperature limits by Installer
The maximum temperature limit can be used, for example, to prevent low temperatures from reaching floor-refreshing
systems. The minimum temperature limit can be used when a minimum level of cooling in the cooling circuit is desired.
Ts
n
Tmaxc
n
Tminc
n
Water Outlet temperature set-point ºC
Maximum water temperature
Minimum water temperature
Outdoor ambient temperature (ºC)
CODE REF Description Default Value Range Steps Units
CIRCUIT 1 (Direct circuit)
3-019 Tmaxc
1
Maximum supply Tº C1 22 19~22 1 ºC
3-020 Tminc
1
Minimum supply Tº C1 16 5~18 1 ºC
CIRCUIT 2 (Mixed circuit)
3-119 Tmaxc
2
Maximum supply Tº C2 22 19~22 1 ºC
3-120 Tminc
2
Minimum supply Tº C2 16 5~18 1 ºC
C A U T I O N
Temperature limits have priority over all other temperature set-point modifications (Room Thermostat, User Se -
lection, etc.), and minimum water temp is limited by YUTAKI S operational range.
Note that water temperature can reach up to 3ºC lower than minimum water temperature by installer before Ther
-
mo OFF condition.
Try to set a minimum of 2 degrees difference between setting temperature (3-(0/1)04) and minimum supply tem
-
perature by installer.