Hoshizaki ROX-20TB2-U service manual Flow Rate Adjustment

3. FLOW RATE ADJUSTMENT

Pressing flow rate select button will not change flow rate and display

Dispensing action is		No
stopped
	Yes
		No
Normal (Nor.) mode is
selected
	Yes
		No
Flow control valve connector
is disconnected
	Yes

Stop dispensing and press flow rate select button

Select normal (Nor.) mode and press flow rate select button

Reconnect

Flow rate remains unchanged or below "HI" setting

Water supply pressure not less than 0.15 MPa (21.76 psi)

Yes No

Low water supply pressure

Pressure ensured even with a large amount of tap water used elsewhere

Yes No

1.Flow control valve defective

2.Open circuit

	Valves and pipes free from			Low water
Yes	foreign matter or clogging			supply pressure
			No
		Remove foreign matter,
		unclog or replace

Note: The actual flow rate may differ from the setting depending on variation of the flow rate sensor in the flow control valve.

e.g. Total flow rate setting [standard 1.06 gal/min (4.0 L/min)] --> actual flow rate [1.19 gal/min (4.5 L/min)]

If the difference is too large, use the adjustment mode (AdJ.) to adjust the total flow rate (A3).

e.g. Total flow rate setting [0.92 gal/min (3.5 L/min)] --> actual flow rate [1.06 gal/min (4.0 L/min)]

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