Armstrong Drv40 User manual

Intelligent System Solutions® STEAM ●AIR ●HOT WATER

armstronginternational.com

Armstrong Hot Water, Inc. – DRV40-80 Gen. 2 Troubleshoot Guide

221 Armstron

Blvd.

Three Rivers

Michi

an 49093

–

U.S.A. Phone:

(

269

)

3602

Fax:

(

269

)

3130



Motor Error/Safe Mode

Has the valve been reset

(

i.e.

owered off

then on

)

Check

Yes

No Reset the valve by

powering down & then

owerin

back on

Are the valve internals free

of debris and clean?

Remove valve internals

and thorou

clean

Remove valve internals &

check O-rings/Seals to

ensure they are smooth;

if not, replace

Are the O-Rings/Seals in

good condition & not

preventing the spool travel?

Is the motor operational?

(i.e. is it able to turn/drive

gears?)

Yes

Is the magnetic rotor

attached to the motor

operational?

lace moto

Check strength of

magnets inside rotor; if

not sufficient, replace

rotor

Yes

Is the valve free of any

leaks coming out of bottom

of valve?

Ensure all wires are not

pinched & plugs are

connected; if needed

replace cable loom

Yes

Are supply pressures

nominally equal (within

5psi

)

No E

ualize

ressures

Yes

Is the valve PCB

operational and ok? No Re

lace Ele. Housin

Yes

Is the valve PSU

operational and ok? No Re

lace Ele. Housin

Yes

Issue addressed or Contact

Factory @ 269-279-3602

Are all cables/wiring &

connectors ok?

lace GDA

Yes

Key:

PSU = Power Supply GDA = Gear Drive Assembly

PCB = Printed Circuit Board

Yes

Is the front electronics

enclosure closed? Close door fully against

valve bod

Intelligent System Solutions® STEAM ●AIR ●HOT WATER

armstronginternational.com

Armstrong Hot Water, Inc. – DRV40-80 Gen. 2 Troubleshoot Guide

221 Armstron

Blvd.

Three Rivers

Michi

an 49093

–

U.S.A. Phone:

(

269

)

3602

Fax:

(

269

)

3130



PCB Error

Has the valve been reset

(

i.e.

owered off

then on

)

Check

Yes

No Reset the valve by

powering down & then

owerin

back on

Is the software/firmware

version 9 or greater? No If has BrainScan, replace

Ele. Housing

Ensure all wires are not

pinched & plugs are

connected; if needed

lace cable loom

Are all cables/wires &

connectors ok?

Yes

No Replace Ele. Housing

No Re

lace Ele. Housin

Is the valve PCB

operational and ok?

Is the valve PSU

operational and ok?

Yes

Issue addressed or Contact

Factory @ 269-279-3602

Thermistor Error

Has the valve been reset

(

i.e.

owered off

then on

)

Check

Yes

No Reset the valve by

powering down & then

owerin

back on

Ensure all wires are not

pinched & plugs are

connected; if needed

lace cable loom

Are all cables/wires &

connectors ok?

Yes

No Replace Ele. Housing

lace cable loom

Are the thermistors

operational and ok?

Is the valve PCB

operational and ok?

Issue addressed or Contact

Factory @ 269-279-3602

Key:

PSU = Power Supply GDA = Gear Drive Assembly

PCB = Printed Circuit Board

Intelligent System Solutions® STEAM ●AIR ●HOT WATER

armstronginternational.com

Armstrong Hot Water, Inc. – DRV40-80 Gen. 2 Troubleshoot Guide

221 Armstron

Blvd.

Three Rivers

Michi

an 49093

–

U.S.A. Phone:

(

269

)

3602

Fax:

(

269

)

3130



Battery Error

Has the valve been reset

(

i.e.

owered off

then on

)

Check

Yes

No Reset the valve by

powering down & then

owerin

back on

Have the batteries been

replaced within last year? No Re

lace Batteries

Ensure all wires are not

pinched & plugs are

connected

Are all cables/wires &

connectors ok?

Yes

No Replace Ele. Housing

No Re

lace Ele. Housin

Is the valve PCB

operational and ok?

Is the valve PSU

operational and ok?

Yes

Issue addressed or Contact

Factory @ 269-279-3602

Display Issues

Has the valve been reset

(

i.e.

owered off

then on

)

Check

Yes

No Reset the valve by

powering down & then

owerin

back on

Adjust brightness via

POT adjustment screw on

PCB

Is the lighting/brightness

sufficient?

Yes

Replace display & keep

original to allow for a

spare in event heat

affects a

ain

Is the display

numerals/characters ok?

Issue addressed or Contact

Factory @ 269-279-3602

Key:

PSU = Power Supply GDA = Gear Drive Assembly

PCB = Printed Circuit Board

Intelligent System Solutions® STEAM ●AIR ●HOT WATER

armstronginternational.com

Armstrong Hot Water, Inc. – DRV40-80 Gen. 2 Troubleshoot Guide

221 Armstron

Blvd.

Three Rivers

Michi

an 49093

–

U.S.A. Phone:

(

269

)

3602

Fax:

(

269

)

3130

Yes



Temperature Control Issues

Has the valve been reset

(

i.e.

owered off

then on

)

Check

Yes

No Reset the valve by

powering down & then

owerin

back on

Has the valve been re-

calibrated? No Calibrate valve

Isolate recirculation;

create sufficient demand

(10gpm min.) & check

performance

Does the valve control

under minimum demand?

Does the system have

sufficient recirculation flow

(10gpm min.)?

Yes

Are supply pressures

nominally equal (within

5psi)?

Check recirculation

pump rating; ensure is

capable and running at

min. of 10gpm; if not,

increase pump size

No E

ualize

ressures

Yes

Does the system have

sufficient recirculation loop

temperature loss (2deg

min

)

Reduce size of

recirculation pump or

slow down flow

Yes

Is there adequate supply

water temperatures (hot &

cold su

Ensure hot water

supply is > than valve

setpoint (min. 2deg F) &

cold water supply is <

than valve setpoint

(min. 2deg F)

Are the valve internals free

of debris and clean?

Remove valve internals

and thoroughly clean

Yes

Does the recirculation

pump run continuously

without an Aquastat?

Remove aquastat;

recirculation pump

should run continuousl

Yes

Are the O-Rings/Seals in

good condition & not

preventing the spool

travel?

Yes

Remove valve internals

& check O-rings/Seals

to ensure they are

smooth; if not, replace

Is the spool lock nut on the

drive shaft tight preventing

any spool slop?

Tighten lock nut to 80-90

in-lb

Intelligent System Solutions® STEAM ●AIR ●HOT WATER

armstronginternational.com

Armstrong Hot Water, Inc. – DRV40-80 Gen. 2 Troubleshoot Guide

221 Armstron

Blvd.

Three Rivers

Michi

an 49093

–

U.S.A. Phone:

(

269

)

3602

Fax:

(

269

)

3130



Are there strainers in the

system & if so are they

clean?

Install strainers on ALL

supply lines & remove

basket (not just blow

down

)

to clean

Is the valve installed/piped

according to installation

instructions?

Re-pipe to ensure

installed per instructions

Yes

Issue addressed or Contact

Factory @ 269-279-3602

Is the valve installed in a

single temperature

loop/system (i.e. no high

tem

kitchen loo

)

Yes

Ensure there are no

cross-connections w/

any higher/lower temp

loops

Yes

Are the checkvalves

installed holding correctly? Re

lace checkvalves

Yes

Temperature Control Issues Cont’d

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