Carrier Idrofan 42NH, Инструкция по установке, эксплуатации и обслуживанию, Страница: 20 / 24

4.8.1 - Optional balancing valves
Two-way valve with waterflow balancing function is embedded with a differential pressure controller (with or without
pressure test points to control the waterflow settings). The setting of the valve is shown in Fig. 16.
The manual control knob (16a) is ready fitted to protect valve stem and pre-set mechanism and facilitates manual
control of valve during commissioning.
Setting procedure:
■ Remove control knob from the valve (16a)
■ Loosen knurled nut (16b).
■ Adjust the desired dial setting with the white knob (16c)
-
See table below.
■ Retighten knurled nut by hand (16d).
Waterflow to adjust [l/h]
1/2’ valve Not Standard
3/4’ valve Available
1’’ valve Available Available
ON/OFF actuator Not Standard Available Available
Moduling / 3p actua. Not Standard Available Available
Waterflow range : 200 l/h (*) 600 l/h (*) 1200 l/h (*) 1600 l/h (*)
MINI
NA NA NA NA
0,2 NA NA NA NA
0,4 NA NA NA NA
0,5 30 100 NA NA
0,6 35 115 200 220
0,8 40 130 260 290
1 50 160 310 250
1,2 60 180 380 420
1,4 70 210 430 480
1,6 80 240 490 550
1,8 90 270 550 610
2 100 300 610 680
2,2
110 320 660 740
2,4
120 350 730 810
2,6
130 380 780 870
2,8
140 410 840 940
3
150 440 900 1000
3,2
160 460 960 1070
3,4
170 490 1010 1130
3,6 180 520 1070 1200
3,8 190 550 1130 1260
MAX 200 575 1190 1330
(*): Maximum specified water flow on the valve body
WARNING: The valves have to be open when flushing or pressure testing the system. Strong pressure
impacts can damage closed valves.
Differential pressure across the valve’s control path is not allowed to exceed 400 kPa.
4 - COMPONENTS AND MAINTENANCE
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