HRX-OM-X037
Chapter 4 Starting the Product
HRL Series 4.4 Operation Start and Stop
4.4.2 Setting of the pump operation mode
Pump operation mode is set in the pressure control mode by default. Refer to
“Pump operation mode” (P.5-32) for setting.
[By default] Pressure control mode
・ CH1: The pump output (rotation) is controlled to maintain the
circulating fluid discharge pressure at below.
HRL100：0.43MPa、HRL200：0.45MPa、HRL300：0.45MPa
・ CH2: The pump output (rotation) is controlled to maintain the
circulating fluid discharge pressure at 0.45 MPa.
4.4.3 Starting the Product
When the alarm is activated, refer to “Chapter 7 Alarm Notifications and
Troubleshooting” to turn off the applicable alarm.
1. Press [ ] button on the home screen.
CH1 and CH2 will start operation.
The operating condition display switches from [ ] to [ ] and flashes during the
operation preparation.
The display turns on [ ] when it starts operating.
Fig.4-9 Starting the product
2. Ensure that the circulating fluid flow is at least the minimum required flow rate of
applicable types.
During operation
preparation
Allow at least 5 minutes before restarting the product.
Operation and suspension frequency should not exceed 10 times per day.
Frequently switching between operation and suspension may result in the
malfunction of the refrigeration circuit.
When a alarm is activated, refer to “Chapter 7 Alarm Notifications and
Troubleshooting”.
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