sauermann Si-20 Pump Unit
SAFETY WARNING
Risk of electric shock. Make certain that the power supply to the unit/system is disconnected before attempting to ins-tall, service or remove any component.
The pump unit must not be immersed in water, installed outside the premises, stored in a damp environment or exposed to frost. This pump has not been tested for use in swimming pools or marine areas.To reduce risk of electric shock, read instruction manual for proper installation and install the pump and all electrical components above the top grade level of the sump.
What Is box
CAUTION: This pump has been designed for use with water only. All condensate collection elements (collection tray, connecting tubes, outlets etc…) must be cleaned thoroughly prior to installing the pump. This pump is designed to evacuate neutral-phase, non-oily condensate. It must not run dry. Ensure that there is no syphon effect on the discharge tube.
The pump is supplied with:
- A self-resetting thermal cut-out set at 115 °C (239 °F).
- A self extinguishing body case (UL94 VO Material)
When installed outside the AC unit, the pump must not be accessible without the aid of a tool.
Tools
Pump Power Supply
Connect pump Phase and Neutral terminals to the air conditioner unit’s power supply or to the mains supply by means of wiring to comply with local National Standards. We suggest use of :
- An interconnecting power cable (CE: HO5 VVF 2 x 0.5 mm2; UL/CSA: 2 x 0.5 mm² (AWG20) certified UL2464 – 80 °C – 300 V) which must be fastened securely to the wall, to avoid inadvertent disconnection during installation and later servicing.
- This connection should be equipped with an electrical isolation device (2 A Fused Spur, customer provided) to the Phase and Neutral.
The pump must be powered by an electrical circuit protected against over-voltage> 2.5 kV.
Pump safety switch
IMPORTANT: Connecting the cable of the safety switch is indispensable to avoid any risk of overflowing. For correct connection, refer to the ap-pliance instructions.
The pump is equipped with a NC high water safety switch with a maxi-mum rating of 3 A/250 V (safety switch CE: 2 x 0.5 mm2, UL/CSA: 2 x 0.5 mm2 (AWG20)).This contact may be used to switch off the air conditioner where there is a risk of condensate overflow (after thorough verification by the installer of the customer’s specific application and the resultant electric wiring diagram).
Ensure power cable is not subject to prolonged water exposure.
Initial operational test
- First clean the condensate tray of any debris left over from manufacture or unpacking of the air handling unit.
- Pour water into the condensate collection tray (a squeezable plastic bottle, ACC00401, is available).
- Check that the pump unit starts & then stops as the water level decreases.
- Check safety switch by continuing to pour water until the alarm triggers (cutting off the compressor).
The detection unit must be cleaned at the beginning of the season and regularly if the system is used all year round. The frequency of this cleaning varies according to the degree of pollution caused by the environment.
If the pump doesn’t start, check the wiring and incoming power supply.
For all problems first check:
- the discharge lines are neither obstructed nor kinked,
- the float inside the detection unit is not blocked
- the hydraulic inlets nor outlets are not obstructed
If the pump is running continuously (>1min), check:
- the discharge height is < 10 m (33 ft)
- the pump is suitable for the capacity of the air conditioning unit,
- while starting the pump, the flow of the water poured into the collection tray was not too high (ex:1 l in 30 s = 60 l/h >>20 l/h – 1/8 gal in 30 s = 15 gph >> 5 gph)
If the pump is running continuously and there is no suction of water, check that the suction hose (hose that connects the pump and detection unit) is connected and air tight.
If the pump cycles continually or does not shut off:
- check the detection unit is mounted level.
- turn the pump off and see if the water returns down the discharge line. If water returns down the line you should replace the pump.
Before you start cleaning your air conditioning system, you must remove the pump to prevent damage.
Dimension
| Max Flow Rate | 20 l/h @ 50 Hz (5.28 gph), 19 l/h @ 60 Hz (5 gph) |
|---|---|
| Max Discharge Head | 10 m (33 ft) |
| Voltage | 230 V~50 Hz – 15 W*, 120 V~60 Hz – 13 W**, 230 V~50/60 Hz – 15 W*** |
| Insulation Class | Double insulation |
| Safety Switch | NC, 3 A, resistive load |
| Detection Levels | On: 16 mm, Off: 11 mm, Alarm: 19 mm |
| Sound Level | 19 dBA |
| Safety Standards | CE / UL / CSA / EAC / UKCA |
PRODUCT CODE
Example
- Production plan
- Year
- Week
- Incremental number
- Production order number
SERVICING OF DOUBLE-INSULATED APPLIANCES
A double-insulated appliance is marked with one or more of the following: The words ‘‘DOUBLE INSULATION’’ or ‘‘DOUBLE INSULATED’’ or the double insulation symbol (square within a square). In a double-insulated appliance, two systems of insulation are provided instead of grounding. No grounding means is provided on a double-insulated appliance, nor should a means for grounding be added. Servicing a double-insulated appliance requires extreme care and knowledge of the system, and should be done only by qualified service personnel. Replacement parts for a double-insulated appliance must be identical to the parts they replace.
CONFORMITY CERTIFICATE
- declares that the product Si-20 condensate lift mini-pump is in conformity with the standards:
- EN 60335-1
- EN 60335-2-41
- EN 55014-1, EN 55014-2
- EN 61000-3-2, EN 61000-3-3
- EN 62233:2013
- Please note that it is prohibited to put this pump into service before the machine in which it is incorporated has been declared to conform with the provisions of machine directive 2014/35/UE and with the electromagnetic compatibility directive 2014/30/UE
Warranty Information
For warranty information, please visit the following links based on your region:
- UK Warranty
- France Warranty
- Spain Warranty
- Germany Warranty
- Italy Warranty
- US Warranty
- China Warranty
For further information, contact services@sauermanngroup.com.
Frequently Asked Questions
What should I do if the pump does not start?
Check the power supply connections and ensure they are correctly set up. Verify that the safety switch is functioning properly.
Documents / Resources
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sauermann Si-20 Pump Unit [pdf] Instruction Manual SI20UL02UN12, SI20UL02UN23, Si-20 Pump Unit, Si-20, Pump Unit |