20
…2 OPERATOR LEVEL
2.6.2 Reverse (Heat)/Reverse (Cool) or Direct (Heat)/Direct (Cool)
It is not possible to view or adjust the heat/cool outputs directly. The PID output (0 to 100%), used to
calculate the heat (OP1) and cool (OP2) outputs, is displayed and may be adjusted in manual mode.
The OP1 and OP2 l.e.d.s indicate which output is changing.
2.7 Motorized Valve Output Types
2.7.1 Motorized Valve with Feedback
Valve Position Display
[0 to 100% of travel]
Note. In manual mode, the and keys
can be used to drive the valve open and valve close
relays directly.
2.7.2 Motorized Valve without Feedback (Boundless)
Valve State Display
OPN Valve opening
StP Valve stopped
CLS Valve closing
Note. In manual mode, the and keys
can be used to drive the valve open and valve close
relays directly.
OP2
(cool)
OP1
(heat)
Y2.St
Y1.St
PID O/P
OP2 l.e.d. lit OP1 l.e.d. lit
100%
0%
0%
100%
70
Valve opening
Valve stopped
Valve closing
StP
Valve opening
Valve stopped
Valve closing
Fig. 2.6 Typical Response – Reverse/Reverse or Direct/Direct Control Action
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