Sauermann N746 Pump Accessories User Manual
- June 4, 2024
- sauermann
Table of Contents
Sauermann N746 Pump Accessories
WHAT IN THE BOX
SAFETY WARNING
Risk of electric shock. Make certain that the power supply to the unit/system
is disconnected before attempting to install, 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 ma-rine areas. To reduce the risk of
electric shock, read the instruction manual for proper installation and
install the pump and all electrical com-ponents above the top grade level of
the sump.
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.
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.
Pump Power Supply
- Connect pump Phase and Neutral terminals to the air condition comply with local National Standards. We suggest the use of :
- An interconnecting power cable (CE: HO5 VVF 2 x 0.5 mm2; UL/CSA:
- 2 x 0.5mm² (AWG20) certified UL2464 – 80°C – 300V) 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 (2A Fused Spur, customer provided) to the Phase and Neutral.
- The pump must be powered by an electrical circuit protected against overvoltage> 2.5kV.
**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 appliance
instructions.
The pump is equipped with an NC high water safety switch with a maxi-mum
rating of 8A/250V (safety switch CE: 2 x 0.5mm2, UL/CSA: 2 x 0.5mm2
(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).
Initial operational test
- First, clean the condensate tray of any debris left over from many-
- 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 the safety switch by continuing to pour water until the alarm trig-gers (cutting off the compressor).
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)
- while starting the pump, the flow of the water poured into the collection tray was not too high (ex:1l en 30s=60l/h >>20l/h – 1/8 gal in 30s = 15gph >> 5gph)
- If the pump is running continuously and there is no suction of» water, check that the suction hose (the 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.
| EN | Max flow rate | 20l/h @ 50Hz ( 5.28 gph ) 19 l/h @ 60Hz (5 gph) |
|---|---|---|
| Max discharge head | 10 m ( 33 ft ) | |
| Voltage | 230 V-50Hz – 14 W* |
120V~60Hz – 14W**
230V~50/60Hz – 14W***
Safety switch| NC 8A resistive – 250 V
Thermal protection (overheating)| 115° C ( 239°F ) auto-reset
Detection levels| On:16mm,Off: 11mm, Al: 19mm On:5/8”,Off:7/16’’, Al:3/4’’
Sound level at 1 m ( 3.3ft )| 22 dBA
Safety standards| CE / UL / CSA / EAC