Grundfos ALPHA series Bedienungsanleitung

Grundfos ALPHA

3191277

GRUNDFOS INSTRUCTIONS

Installation and operating instructions

LIMITED WARRANTY

Products manufactured by GRUNDFOS PUMPS CORPORATION (Grundfos) are

warranted to the original user only to be free of defects in material and workmanship

for a period of 36 months from date of manufacture. Grundfos' liability under this

warranty shall be limited to repairing or replacing at Grundfos' option, without

charge, F.O.B. Grundfos' factory or authorized service station, any product of

Grundfos' manufacture. Grundfos will not be liable for any costs of removal,

installation, transportation, or any other charges which may arise in connection with

a warranty claim. Products which are sold but not manufactured by Grundfos are

subject to the warranty provided by the manufacturer of said products and not by

Grundfos' warranty. Grundfos will not be liable for damage or wear to products

caused by abnormal operating conditions, accident, abuse, misuse, unauthorized

alteration or repair, or if the product was not installed in accordance with Grundfos'

printed installation and operating instructions.

To obtain service under this warranty, the defective product must be returned to the

distributor or dealer of Grundfos' products from which it was purchased together

with proof of purchase and installation date, failure date, and supporting installation

data. Unless otherwise provided, the distributor or dealer will contact Grundfos or

an authorized service station for instructions. Any defective product to be returned

to Grundfos or a service station must be sent freight prepaid; documentation

supporting the warranty claim and/or a Return Material Authorization must be

included if so instructed.

GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR

CONSEQUENTIAL DAMAGES, LOSSES, OR EXPENSES ARISING FROM

INSTALLATION, USE, OR ANY OTHER CAUSES. THERE ARE NO EXPRESS OR

IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE, WHICH EXTEND BEYOND THOSE WARRANTIES

DESCRIBED OR REFERRED TO ABOVE.

Some jurisdictions do not allow the exclusion or limitation of incidental or

consequential damages and some jurisdictions do not allow limit actions on how

long implied warranties may last. Therefore, the above limitationsorexclusions may

not apply to you. This warranty gives you specific legal rights and you may also

have other rights which vary from jurisdiction to jurisdiction.

Grundfos ALPHA

Installation and operating instructions 4

Notice d’installation et d’entretien 11

Instrucciones de instalación y funcionamiento 19

Original installation and operating

instructions.

CONTENTS Page

1. General

Grundfos Alpha is suitable for systems with

constant or variable flows where it is desirable to

optimize the setting of the pump duty point.

2. Shipment inspection

Examine the components carefully to make sure

no damage has occurred to the pump during

shipment. Care should be taken to ensure the

pump is NOT dropped or mishandled.Check to

see that these are included:

• One Grundfos Alpha pump

• One line cord or terminal box

• Two gaskets

• One installation and operating instructions

• One check valve

• One "Check Valve Installed" sticker

3. Pumped liquids

Grundfos Alpha is designed for pumping clean,

thin, non-aggressive and non-explosive liquids,

not containing solid particles, fibers or mineral oil.

For glycol usage as well as additional liquid

information see Section 10. Fault finding.

4. Pump installation

When making piping connections, be sure to

follow piping manufactures recommendations

and all code requirements for piping material.

• System should be properly flushed of debris

before pump installation.

• Insert check valve only if required; see fig. 1.

• Arrows on the pump housing indicate the

liquid flow direction through the pump.

• Install the pump with the motor shaft

horizontal; see fig. 2.

• Fit the two gaskets supplied to pump ends.

Fig. 1 Check valve installation

Fig. 2 Installation positions

1. General 4

2. Shipment inspection 4

3. Pumped liquids 4

4. Pump installation 4

5. Changing the power head position 5

6. Electrical installation 5

6.1 For line cord models 5

6.2 Terminal box models 6

7. Nameplate 6

8. Control display 6

9. Performance* and operation mode

selection 7

10. Fault finding 8

11. Disposal 8

12. Technical data 9

12.1 Approvals 10

13. Quick install tips 10

Warning

Prior to installation, read these

installation and operating

instructions. Installation and

operation must comply with

national, state, and local regulations

and accepted codes of good

practice.

Warning

The pump must not be used for the

transfer of flammable liquids such

as diesel oil, gasoline, and similar

liquids.

Pump not for pool or marine use.

Warning

Do not energize pump until properly

installed.

Risk of electric shock — this pump

has not been investigated for use in

swimming pool or marine areas.

TM 3422 4408TM04 3417 4408

5. Changing the power head

position

The power head orientation change should be

made before filling the system with fluid.

Pump liquid may be scalding hot and under high

pressure.

The power head can be rotated in steps of 90°.

Review fig. 3 for possible/permissible positions.

Only use orientations C and D for CSA

Enclosure Type 2.

Fig. 3 Changing the power head position

Procedure:

1. If fluid is present, drain system fluid from

pump or isolate system fluid from pump.

2. Loosen 4mm screws and turn the pump head

to desired position; see fig. 3.

3. Insert and cross-tighten the screws to 7 ft-lbs

torque.

6. Electrical installation

All electrical work should be performed by a

qualified electrician in accordance with the latest

edition of the National Electric Code and state,

local codes and regulations.

• The motor of Grundfos Alpha is protected by

the electronics in the control box and requires

no external motor protection.

• Check that the supply voltage and frequency

correspond to the values stated on the pump.

• Only connect the pump to the mains with the

line cord or through the terminal box supplied;

see fig. 4 and 5.

• Do not modify and only use cord set supplied

• Lights on the control panel indicate electrical

supply has been switched on.

6.1 For line cord models

Follow procedure outlined in fig. 4.

Fig. 4 Connecting and removing power plug

for line cord models

Warning

Before starting any work on this

circulator, make sure electrical

supply has been switched off and

that it cannot be accidentally

switched on.

TM04 3418 1010

Power head

orientation A

Power head

orientation B

Power head

orientation C

Power head

orientation D

Warning

Risk of electrical shock - This pump

is supplied with a grounding

conductor and grounding-type

attachment plug. 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.

TM04 3420 1010

Insert line cord plug onto pump

(side view).

To remove cord plug from pump:

(Bottom view)

1. Insert 1/8 in. flat blade

screwdriver into slot.

2. Rotate screwdriver.

3. Pull cord to remove.

6.2 Terminal box models

Wiring procedure:

1. Loosen terminal box screw from terminal box

cover.

2. Utilize either conduit port for wiring entrance.

3. Gently push open wiring terminal levers

(L-N-G) for wiring installation.

4. Slide terminal box cover over terminal box

body.

5. Tighten terminal box screw Phillips #1

(5 in-lbs).

6. Apply power.

7. Lights on the control panel indicate electrical

supply has been switched on.

Fig. 5 Terminal box wiring, 1 x 115V

7. Nameplate

Fig. 6 Nameplate

8. Control display

Fig. 7 Control display

TM04 7035 1410

Black

White

Green

Wiring terminal levers

TM04 3419 1410

Pos. Description

1 Product Number

2 Production Code:

• 1st and 2nd figures = year

• 3rd and 4th figures = week

3Voltage(V):

4 Rated current (A):

• Min.: Minimum Current (A)

• Max.: Maximum Current (A)

5 Input power (W):

• Min.: Minimum Power (W)

• Max.: Maximum Power (W)

6 Max. fluid temperature (F)

TM04 3421 1010

Pos. Description

1 LED showing Watt or flow indicator

2 LED indicating fixed speed

3 LED indicating constant pressure

4 LED AutoADAPT

5Push-button for selection of pump

setting

9. Performance* and operation mode selection

*Hydraulic performance without check valve

TM04 6882 1110

AUTOADAPT

Operating range

(maximum - minimum)

Pos. Description

• Push-button for selection of pump setting

• Every time the push-button is pressed, the circulator setting is changed

III

High Fixed Speed

• Runs at a constant speed and consequently on a constant curve. In Speed III, the pump is

set on the maximum curve under all operating conditions. Quick Vent of the pump can be

obtained by setting the pump to Speed III for a short period.

II Medium Fixed Speed

• Runs at a constant speed and consequently on a constant curve. In Speed II, the pump is

set on the medium curve under all operating conditions.

ILow Fixed Speed

• Runs at a constant speed and consequently on a constant curve. In Speed I, the pump is set

on the minimum curve under all operating conditions.

Constant Pressure I

• The duty point of the pump will move left and right along the lowest constant-pressure curve

depending on water demand in the system. The pump head (pressure) is kept constant,

irrespective of the water demand.

Constant Pressure II

• The duty point of the pump will move left and right along the middle constant-pressure curve

depending on water demand in the system. The pump head (pressure) is kept constant,

irrespective of the water demand.

Constant Pressure III

• The duty point of the pump will move left and right along the highest constant-pressure

curve depending on water demand in the system. The pump head (pressure) is kept

constant, irrespective of the water demand.

AutoADAPT (Factory Setting)

• This function controls the pump performance automatically within the defined performance

range (shaded area). AutoADAPT will adjust the pump performance to system demands

over time.

10. Fault finding

11. Disposal

This product or parts of it must be disposed of in

an environmentally sound way; please use the

public or private waste collection service.

Warning

Before starting any work on this circulator, make sure electrical supply has been

switched off and that it cannot be accidentally switched on.

Pump liquid may be scalding hot and under high pressure.

Fault Control panel Remedy

1. The pump does not run LED off Check power supply (voltage) and

circuit breaker.

Check zone control; voltage, control

options, and thermostat.

Check all power connections.

Damaged circulator / replace.

LED on Check that the electricity supply falls

within the specified range.

Impeller blocked by impurities.

"___ ___"Requires turning power OFF and back

On to pump.

2. Noise in the system LED on Install air eliminator.

Reduce the pump speed.

Fluid velocities to high; reduce pump

speed.

Emitter or piping expanding.

3. Noise in the pump LED on Let the circulator run, will vent over time.

Increase the inlet pressure or check the

air volume in the expansion tank, if

installed.

No fluid (dry running).

Damaged circulator / replace.

4. Insufficient heat LED on Increase circulator speed or constant

pressure.

Circulator in proper operating mode.

Check for air; piping, zone(s) and

emitter(s).

Check thermostat(s).

Check all valving.

Heat emitter large enough.

Check direction of flow.

Check water temperature from boiler

and boiler functions.

Check proper sizing of circulator.

Check ΔT calculation.

12. Technical data

Supply voltage:

1x115V +/-10 %, 60Hz.

Motor protection:

The pump requires no external motor

protection.

Enclosure class:

Indoor use only, IP42.

CSA Enclosure Type 2.

Insulation class:

Relative air humidity:

Maximum 95 %.

Maximum discharge pressure:

150 psi (10.34 bar).

Inlet pressure:

Sound pressure level:

43 dB (A).

Ambient temperature:

+32 °F (0 °C) to +104 °F (+40 °C).

Liquid temperature:

+36 °F (+2 °C) to +230 °F (+110 °C).

To avoid condensation in the control box and

stator, the liquid temperature must always be

higher than the ambient temperature.

Maximum glycol concentrations:

50 % glycol @ 36 °F (2 °C).

Hydraulic performance change can be expected.

Watt readings:

Accuracy +/-1 Watt.

Flow indicator:

Provides a relative indication of flow — should

not be used in lieu of a flow meter.

Check valve:

Use of check valve may reduce pump

hydraulic performance (up to -10%).

Use check valve in parallel pumping

applications.

Curve conditions:

Test liquid: Airless water.

Curves apply to a density of 983.2 kg/m3and a

liquid temperature of +140 °F (+60 °C).

All curves show average values and should

not be used as guarantee curves. If a specific

minimum performance is required, individual

measurements must be made.

Curves apply to a kinematic viscosity of 0.474

cSt.

Approximate power usage:

Liquid temperature Min. inlet pressure

167 °F (75 °C) 0.75 psi (0.05 bar)

194 °F (90 °C) 4.06 psi (0.28 bar)

230 °F (110 °C) 15.7 psi (1.08 bar)

Ambient

temperature

[°F (°C)]

Liquid temperature

Min. [°F (°C)] Max. [°F (°C)]

+32 °F

(0 °C) +36 °F

(+2 °C) +230 °F

(+110 °C)

+50 °F

(+10 °C) +50 °F

(+10 °C) +230 °F

(+110 °C)

+68 °F

(+20 °C) +68 °F

(+20 °C) +230 °F

(+110 °C)

+86 °F

(+30 °C) +86 °F

(+30 °C) +230 °F

(+110 °C)

+95 °F

(+35 °C) +95 °F

(+35 °C) +194 °F

(+90 °C)

+104 °F

(+40 °C) +104 °F

(+40 °C) +158 °F

(+70 °C)

Caution

In domestic hot-water system, it is

recommended to keep the liquid

temperature below +149 °F (+65 °C)

to eliminate the risk of lime

precipitation.

Speed setting Min. Max.

High fixed speed III 39W 45W

Medium fixed speed II 15W 30W

Low fixed speed I 5W 8W

Constant pressure 8W 45W

Constant pressure 14W 45W

Constant pressure 22W 45W

AutoADAPT 5W 45W

12.1 Approvals

FCC Sections:

Section 15.19 (a) 3:

This device complies with Part 15 of the FCC

Rules. Operation is subject to the following two

conditions: (1) this device may not cause harmful

interference, and (2) this device must accept any

interference received, including interference that

may cause undesired operation.

Section 15.21:

Any changes or modifications to this equipment

not expressly approved by the party responsible

for compliance could void the user's authority to

operate this equipment.

Section 15.105 (b):

NOTE: This equipment has been tested and

found to comply with the limits for a Class B

digital device, pursuant to Part 15 of the FCC

Rules. These limits are designed to provide

reasonable protection against harmful

interference in a residential installation. This

equipment generates, uses, and can radiate

radio frequency energy and, if not installed and

used in accordance with the instructions, may

cause harmful interference to radio

communications. However, there is no guarantee

that interference will not occur in a particular

installation. If this equipment does cause harmful

interference to radio or television reception,

which can be determined by turning the

equipment off and on, the user is encouraged to

try to correct the interference by one or more of

the following measures;

• Reorient or relocated the receiving antenna.

• Increase the separation between the

equipment and receiver.

• Connect the equipment into an outlet on a

circuit different from that to which the receiver

is connected.

• Consult the dealer or an experienced radio/TV

technician for help.

Canadian EMC Standard:

ICES-003

This Class B digital apparatus complies with

Canadian ICES-003.

13. Quick install tips

1. To insure proper air venting of your system,

place Alpha in Fixed Speed III mode until all

air has been removed. Isolating zones during

this process will ensure proper air removal.

2. For balancing manifold zone(s) applications,

utilizing Constant Pressure mode 1 or 2 and

only one zone at a time during balancing will

ensure proper flow rate to each zone.

3. Always review your boiler minimum flow

rate requirements if utilizing Alpha as a

primary pump. Select one of the fixed speed

modes for boiler primary pump applications.

4. In general, for maximum energy savings and

comfort level, start with the AutoADAPT™

mode.

5. You may change hydraulic selection while

pumping. No permanent damage will occur. In

fact, Grundfos encourages testing the various

hydraulic modes with your hydronic system to

ensure maximum energy savings and comfort

level.

6. Zone panel control applications — when there

is a call for heat and power has been sent to

the Alpha pump, the Alpha will remember and

restart from the last duty point and hydraulic

mode.

3191277

Subject to alterations.

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