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5.3 Changing the pump head position

Make any change to the pump head orientation before filling the 
system with liquid. You can turn the pump head in steps of 90 °.
• See section 

5.1 Control box positions

 for permissible 

positions.

Proceed as follows:

1. If liquid is present, drain the liquid from the pump or isolate 

the liquid from the pump.

2. Remove the four socket head cap screws.
3. Turn the pump head to the desired position.
4. Cross-tighten the screws.

5.4 Insulating the pump housing

If the pump is installed in a cabinet or fitted with insulation shells, 
the inside air temperature has to be evaluated. If you expect 
constant ambient air temperatures higher than 130 °F, please 
contact the Grundfos HVAC OEM Division.

5.5 Electrical installation

• The motor is protected by the electronics in the control box 

and requires no external motor protection.

• UL-approved UPML and UPMXL circulators are equipped with 

a conduit box for easy installation of the power supply cable.

DANGER

Electric shock

Death or serious personal injury
- Switch off the power supply before starting any 

work on the product. Make sure that the power 
supply cannot be accidentally switched on.

WARNING

Pressurized system

Death or serious personal injury
- Before dismantling the pump, drain the system or 

close the isolating valve on either side of the pump 
before you remove the screws. The pumped liquid 
may be scalding hot and under high pressure.

CAUTION

Hot surface

Minor or moderate personal injury
- Position the pump so that persons cannot 

accidentally come into contact with hot surfaces.

Do not insulate the control box (especially the heat 
sink) in order to allow cooling by the surrounding air.
Do not cover the pump head with diffusion-tight, 
cold-water insulation. 

Keep the drain holes located in the stator housing 
free.

DANGER

Electric shock

Death or serious personal injury
- All electrical work must be carried out by a 

qualified electrician in accordance with the latest 
edition of the National Electric Code and state, 
local codes and regulations.

DANGER

Electric shock

Death or serious personal injury
- Switch off the power supply before starting any 

work on the product. Make sure that the power 
supply cannot accidentally switched on.

DANGER

Electric shock

Death or serious personal injury
- Do not use the pump in swimming pool or marine 

areas.

WARNING

Electric shock

Death or serious personal injury
- This pump is supplied with a grounding conductor. 

To reduce the risk of electric shock, be certain that 
it is connected only to a properly grounded, 
grounding-type receptacle in accordance with the 
National Electric Code and any state, local 
governing codes and regulations.

The pump must not be used with an external speed 
control which varies the supply voltage, for example 
phase-cut or pulse-cascade control.

Check that the supply voltage and frequency 
correspond to the values stated on the pump.

UPMM_UPML_UPMXL_US.book  Page 8  Tuesday, February 26, 2019  10:18 PM

Содержание UPML

Страница 1: ...GRUNDFOS INSTRUCTIONS UPML UPMXL Installation and operating instructions UPMM_UPML_UPMXL_US book Page 1 Tuesday February 26 2019 10 18 PM...

Страница 2: ...2 UPMM_UPML_UPMXL_US book Page 2 Tuesday February 26 2019 10 18 PM...

Страница 3: ...nt for more than thirty 30 days and canceling any balance still owing on the equipment or c in the case of service at the seller s option redoing the service or refunding the purchase order amount of...

Страница 4: ...or circulating liquids in heating and air conditioning systems They are suitable for cold water applications and can be integrated in geothermal heating pumps DANGER Indicates a hazardous situation wh...

Страница 5: ...zard Death or serious personal injury In domestic hot water systems the temperature of the pumped liquid must always be above 122 F 50 C due to the risk of legionella WARNING Biological hazard Death o...

Страница 6: ...MXL Nominal diameter DN of inlet and outlet ports mm Maximum head dm _ N F Cast iron pump housing Stainless steel pump housing 2 bolt flanges Port to port length mm AUTO PWM VDC Internally controlled...

Страница 7: ...th or serious personal injury Before dismantling the pump drain the system or close the isolating valve on either side of the pump before the screws are removed The pumped liquid may be scalding hot a...

Страница 8: ...iquid may be scalding hot and under high pressure CAUTION Hot surface Minor or moderate personal injury Position the pump so that persons cannot accidentally come into contact with hot surfaces Do not...

Страница 9: ...of filter damage Ground fault circuit interrupter GFCI If the pump is connected to an electrical installation where a ground fault circuit interrupter GFCI is used for additional protection this Groun...

Страница 10: ...e has two or three leads The signal cable must be connected to the control box by a dubox housing with an FCI terminal block and terminals Fig 10 VDC signal cable connection The ground symbol identifi...

Страница 11: ...s feedback signal The PWM frequency of the feedback signal is fixed at 75 Hz in the pump Duty cycle d 100 x t T Fig 11 PWM signal Fig 12 PWM input profile A heating PWM feedback signal Power consumpti...

Страница 12: ...ted input voltage low level UIL 1 V High level input current IIH 10 mA Input duty cycle PWM 0 100 PWM frequency output open collector f 75 Hz 5 Accuracy of output signal regarding power consumption 2...

Страница 13: ...mA Input duty cycle PWM 0 100 PWM frequency output open collector f 75 Hz 5 Accuracy of output signal regarding power consumption 2 of PWM signal Output duty cycle PWM 0 100 Collector emitter breakdo...

Страница 14: ...rial curve setting For first start up Start at factory pre setting If a setting has already been selected Start at the actual setting Press the button for two seconds The pump enters setting mode and...

Страница 15: ...The current operated or voltage operated circuit breaker has tripped Cut in the circuit breaker d Power supply failure Check that the power supply falls within the specified range Normal power supply...

Страница 16: ...16 UPMM_UPML_UPMXL_US book Page 16 Tuesday February 26 2019 10 18 PM...

Страница 17: ...17 UPMM_UPML_UPMXL_US book Page 17 Tuesday February 26 2019 10 18 PM...

Страница 18: ...18 UPMM_UPML_UPMXL_US book Page 18 Tuesday February 26 2019 10 18 PM...

Страница 19: ...2941 Brighton Road Oakville Ontario L6H 6C9 Canada Phone 1 905 829 9533 Telefax 1 905 829 9512 www grundfos ca GRUNDFOS M xico Boulevard TLC No 15 Parque Industrial Stiva Aeropuerto C P 66600 Apodaca...

Страница 20: ...e Grundfos logo and be think innovate are registered trademarks owned by Grundfos Holding A S or Grundfos A S Denmark All rights reserved worldwide Copyright Grundfos Holding A S www grundfos com UPMM...

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