25
If it is necessary for the fl ow control, a signal from the unit, we suggest the confi guration versus connection that follows:
• Setting on the pump control (WP) in SYSTEM (see Section 5.2.6); Inverter Speed 1 = K4 (master unit)
Inverter Speed 2-8 = K2 (each slave unit)
K4 Off = Speed Ø
K4 On + (8x) K2 Off = Speed 1 K4 On + (1x) K2 On = Speed 1
K4 On + (2x) K2 On = Speed 2
...
K4 On + (8x) K2 On = Speed 8
• Setting on the pump thermostat (WP) in INDIVIDUALLY (see item 5.2.6) Inverter Speed 1-8 = K4 (each unit)
(1x) K4 On = Speed 1 (2x) K4 On = Speed 2 (3x) K4 On = Speed 3
...
(8x) K4 On = Speed 8
For intermediate times, always use “WVSCSDT” of greater value. It is not recommended to use valves (WV) with opening and
closing times greater than 90 seconds.
Follow recommendation table for industry standard times:
The outlet water temperature control gives is related
to the opening and closing time of the water valve.
The smaller the opening time, the better the control. The
confi gurable time “WVSCSDT” of the thermostat should
be set in the fi eld according to the opening and closing
time of the valve (WV).
IMPORTANT
Opening and Closing Time (WV)
WVSCSDT
<20 sec
20
30 sec
30
60 sec
40
75 sec
60
90 sec
80
Use the contacts available on the auxiliary relays K2 and k4. This connection will indicate the number of active
units in the system and consequently the need to increase or decrease the water fl ow in in the system. The
limit for this suggestion is the minimum frequency in which the pump motor can operate.
NOTE
Water valve opening time adjustment (WV)
