The burks UPBASIC series canned canned silent circulation pump

Product Range

Power supply 1×230 V, 50 Hz; pump material: cast iron; liquid temperature -25 °C to +110 °C; pump types: UPBasic 15-4, UPBasic 25-6, UPBasic 25-8, UPBasic 25-12 (this section is shared with the UPS series).

Model Designation

Example UPBASIC/UPS 15 6 P/B/N 130: UPBASIC/UPS = circulator pump; 15 = nominal diameter (DN) of the inlet/outlet; 6 = maximum head (m); P/B/N = pump housing material: plastic / bronze / stainless steel; 130 = housing length.

Construction

The UPBASIC/UPS pump is of the canned-rotor type, i.e. the pump and motor form one unit with no shaft seal, only two gaskets; the bearings are lubricated by the pumped liquid. Features: ceramic shaft and radial bearings; carbon thrust bearing; stainless steel rotor can and bearing plate; impeller made of corrosion-resistant material; pump housing made of cast iron, bronze, plastic or stainless steel.

Materials

Installation

The pump must be installed with the motor shaft horizontal; before start-up, remove the plug screw on top of the motor to vent air; within a very short time the rotor forces the remaining air out through the shaft.

Motor

The pump has three speeds: high, medium and low. The terminal box is easy to use and has cable terminals for various functions; the cable entry is sealed and has a built-in cable clamp; the cable entry of the single-phase motor can be pushed out from its lead-in for correct cable connection. Cable connection: 5.6–10 mm cable.

Commissioning of the Intelligent Temperature-Control Model

1. After connecting the inlet and outlet pipes of the temperature-controlled pump, unscrew the vent screw in the middle to release the air inside the pump.
2. Power on the pump (the pump is now running) and first set the start temperature: press the "Set/Confirm" key on the panel and set the start temperature value with the ▲ and ▼ keys (the start temperature must be higher than the indoor ambient temperature; for example, if the ambient temperature is 27 °C, set a value above 27 °C).
3. Set the stop temperature: press the "Set/Confirm" key, the indicator below flashes, then set the stop temperature value with the ▲ and ▼ keys; the set stop temperature must not exceed the maximum temperature of the pipeline (otherwise the circulator will keep running continuously because the temperature can never be reached); after setting the stop temperature, press the "Set/Confirm" key once more to save the data, and the intelligent temperature-control modular operation is achieved.

Applications

The UPBASIC and UPS series are circulator pumps designed for heating systems and wall-hung boilers. Heating systems: UPBASIC can be used for centralised and district heating systems; burks UPBASIC can run at three different speeds; these pumps are mainly used for single-pipe and two-pipe heating systems, but are also suitable for mixing loops in large systems; for underfloor pipe heating systems, bronze pump types are recommended because the pumped liquid may often contain air, which can corrode conventional cast iron housings.

Pumped Liquids

Thin, non-corrosive and non-explosive liquids without solid particles or fibres; cooling water without mineral oil; domestic hot water; softened water. The kinematic viscosity of water at 20 °C is 1 cSt (1 mm²/s); if the circulator is used with higher-viscosity liquids, its hydraulic performance decreases — for example, 50% ethylene glycol at 20 °C has a viscosity of about 10 cSt, and the pump performance decreases by about 15%; the viscosity of the pumped liquid must be considered when selecting a pump.

Ambient and Liquid Temperatures

Liquid temperature -25 °C to +110 °C. For standard pumps with a permissible liquid temperature from -25 °C to +110 °C, the ambient temperature must always be lower than the liquid temperature, otherwise condensation will occur in the stator housing. Ambient-to-liquid temperature correspondence: at an ambient temperature of 0 °C, liquid min. -25 °C, max. 110 °C; at 10 °C, liquid 10 °C to 110 °C; at 20 °C, liquid 20 °C to 110 °C; at 30 °C, liquid 30 °C to 110 °C; at 35 °C, liquid 35 °C to 90 °C; at 40 °C, liquid 40 °C to 70 °C; at 60 °C*, liquid 60 °C* to 70 °C* (note: *operation above this temperature may shorten the service life of the pump).

Maximum System Pressure

PN 10: 1.0 MPa (10 bar).

Inlet Pressure

To avoid cavitation noise and damage to the pump bearings, maintain the following minimum inlet pressures at the pump inlet: at a liquid temperature of 85 °C, 0.5 m head (0.049 bar); at 90 °C, 2.8 m head (0.27 bar); at 110 °C, 11 m head (1.08 bar).

Curve Conditions

1. The bold part of the curves indicates the recommended performance range.
2. Test liquid: water without air.
3. The curves apply to water with a density P=983.2 kg/m³ at 20 °C.
4. All curves represent average values and must not be used as guaranteed curves; if minimum performance is required, it must be tested separately.
5. The curves apply to a kinematic viscosity of v=1 mm²/s (1 cSt).
6. The conversion between head H [m] and pressure P [kPa] is based on water with a density of 1000 kg/m³; for liquids of other densities, such as hot water, the outlet pressure is proportional to the density.

Noise and Maintenance

The noise level of the pump is approximately 43 dB(A). With correct installation and correct use, the pump requires no maintenance.

Troubleshooting

1. The pump does not start
a) Power supply fault → Check the fuses, or the power connection may be loose
b) Capacitor fault → Replace the capacitor
c) The pump is blocked by wound fibres → Briefly switch to maximum speed, or insert a screwdriver into the slot at the shaft end and turn the rotor
d) The inside of the pump is not clean → Clean the inside of the pump

2. Noise in the system
a) Pump flow set too high → Switch to a lower speed
b) Air in the system → Vent the system

3. Noise in the pump
a) Air in the pump → Vent the pump
b) Inlet pressure too low → Increase the inlet pressure, or check the air volume in the expansion tank (if fitted)

Notes

1. Read this installation and operating manual carefully before installation and use.
2. Failure to observe the safety warnings may cause personal injury, pump damage and other property loss, for which the factory bears no responsibility and no compensation.
3. Installers and operators must observe local safety regulations; this product must be installed and maintained by professional personnel.
4. The user must ensure that the product is installed and maintained by personnel who are familiar with this manual and hold professional qualifications.
5. Do not install the pump in a damp place or a place where it may be splashed with water.
6. Install the pump in a place with drainage facilities (such as a floor drain) to prevent water accumulation if the pump leaks.
7. Disconnect the pump power supply during installation and maintenance.
8. Do not frequently replenish the heating pipeline with non-softened water, to avoid increased calcium content in the circulating water in the pipeline, which may block the impeller.
9. In winter, if the pump system is not running or the ambient temperature is below 0 °C, drain the liquid in the pipeline system to prevent the pump body from frost cracking.
10. In summer or at high ambient temperatures, ensure ventilation to prevent electrical faults caused by condensation.
11. The pumped liquid may be hot and under high pressure; before moving or dismantling the pump, drain the liquid in the system or close the stop valves on both sides of the pump to avoid scalds.
12. If the vent bolt is removed, hot liquid under high pressure will flow out; make sure the escaping liquid causes no personal injury or damage to other parts.
13. If the flexible power cable is damaged, it must be replaced by professional personnel.
14. If the pump will not be used for a long time, close the inlet pipe valve and disconnect the pump power supply.
15. If a pump fault cannot be cleared following this manual, immediately close the inlet pipe valve, disconnect the pump power supply, and contact the dealer or service centre at once.
16. Keep this product out of the reach of children; after installation, take isolation measures to prevent children from touching it.

Warranty Terms

1. This is to certify that the product listed is covered by our company warranty and has passed strict quality control and inspection under our quality management system.
2. Please keep this certificate properly; no replacement will be issued if it is lost.
3. Failures not caused by human factors under normal use are warranted for one year from the date of purchase.
4. After the warranty period, spare parts are charged at part cost plus a service fee.
5. During the warranty period, replacement parts may be improved parts.
6. Failures caused by force majeure (such as cold weather, earthquakes, floods and other natural disasters) or by human factors are not covered by the warranty.
7. The product must be installed and used in a ventilated, dry environment with an ambient temperature not exceeding 40 °C; installation and use must be carried out by professional personnel in accordance with the instructions, and failures caused by improper installation are not covered by the warranty.
8. Please test-run and inspect the product immediately upon delivery; any quality objection must be raised within one week, otherwise it will not be accepted.