Dover HYDRO DM-500 Manual do utilizador - Página 13
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6.OO troubleshooting
6.O1 Troubleshooting Table
Problem
1. Dead unit - No LEDs illuminated
2. No chemical dispensing.
3. Excessive or inadequate chemical consumption
7.OO Specifications
7.O1
Specifications
Category
Size
Weight
Power Rating
Flow Rate (at full speed)
Duty Cycle
Regulatory Approvals
89/336/CEE
CE
72/23/CEE
UL
778:ed6-2016
CSA
C22.2 No.108:14
Wetted Parts: Material of Construction
Chemical Pickup "Foot Filter"
Chemical Pickup Tubing
Pump Squeeze Tube
Pump Discharge Tubing
Injection Fitting(s)
Environmental Specifications
Temperature
Humidity
Indoor Installation
Cause
a. No incoming main electrical power
b. Bad PC board
a. No signal received
b. Unit is not primed
c. Power switch is in the wrong position
d. Pump tube is damaged or worn
e. Foot filter is clogged, or incorrectly positioned
f. Clogged delivery tube or bad connection
of tubing or fitting
a. Incorrect pump wiring
b. Clogged delivery tube or bad connection
of tubing or fitting
c. Worn pump tube
(
Specifications subject to change without notice.
Specification
9.3 in (235 mm) High x 9.3 in (237 mm) Wide x 5.2 in (132 mm) Depth
3.5 lbs (1.6 kg)
90 to 260 VAC at 50/60 Hz up to 50 mA
Detergent Pumps: 100 ml/min (3.4 oz/min)
Rinse Pumps: 17 ml/min (0.57 oz/min) or
100 ml/min (3.4 oz/min) depending on model
20 hours on, 4 hours off
Regarding "Electromagnetic Compatibility" and the subsequent modifications 92/31/CEE, 93/68/CEE and 93/97/CEE
Regarding "Low Voltages", and the subsequent modification 93/68/CEE, 2002/95/CE, 2002/96/CE and 2003/108/CE
"RoHs and WEEE Directive"
Standard for Motor-Operated Water Pumps
Liquid Pumps
Polypropylene
Santoprene
(Detergent and Rinse models)
®
Santoprene
(Silicone is available on request.)
®
PVC for Detergent models / Polyethylene for Rinse models
Polypropylene
50° to 104° F (10° to 40° C)
95% relative humidity, maximum
Approved for indoor use only. Must not be installed outdoors.
Solution
• Check wiring from dish machine.
• Check for power at dish machine connection.
• If board has failed, replace the DM-500 unit.
• Check signal wiring to dish machine.
• Check that dish machine is sending a signal.
• Prime the unit by using the Priming position of the
power switch, or by activating the appropriate signal
to run the pump.
• Confirm the power switch is in the
• Replace pump tube as needed.
• Remove the foot filter and clean as needed.
• Check to insure the weight is installed correctly and
the filter is positioned at the bottom of the container.
• Check and tighten all connectors.
• Replace tubing and fittings as needed.
• Check wiring from dish machine.
• Check and tighten all connectors.
• Replace tubing and fittings as needed.
• Replace pump tube as needed.
)
I
(ON) position
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