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
g
Blvd.
,
Three Rivers
,
Michi
g
an 49093
–
U.S.A. Phone:
(
269
)
27
9
-
3602 Fax:
(
269
)
27
9
-
3130
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Motor Error/Safe Mode
Has the valve been reset
(
i.e.
p
owered off
,
then on
)
?
Check
Yes
No
Reset the valve by
powering down & then
p
owerin
g
back on
Are the valve internals free
of debris and clean?
No
Remove valve internals
and thorou
g
hl
y
clean
No
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
Yes
Yes
Is the magnetic rotor
attached to the motor
operational?
No
Re
p
lace moto
r
No
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?
No
Ensure all wires are not
pinched & plugs are
connected; if needed
replace cable loom
Yes
Are supply pressures
nominally equal (within
5psi
)
?
No
E
q
ualize
p
ressures
Yes
Is the valve PCB
operational and ok?
No
Re
p
lace Ele. Housin
g
Yes
Is the valve PSU
operational and ok?
No
Re
p
lace Ele. Housin
g
Yes
Issue addressed or Contact
Factory @ 269-279-3602
Are all cables/wiring &
connectors ok?
Re
p
lace GDA
No
Yes
Key:
PSU = Power Supply GDA = Gear Drive Assembly
PCB = Printed Circuit Board
Yes
No
Is the front electronics
enclosure closed?
Close door fully against
valve bod
y

Armstrong DRV40 Specifications

General

Category	Controller
Manufacturer	Armstrong
Model	DRV40
Output Current	40 A
Control Method	PWM
Enclosure Rating	IP20
Protection Features	Short Circuit
Operating Temperature	-20°C to 50°C

Summary

Motor Error/Safe Mode

Component Replacement and Pressure Adjustment

Procedures for replacing GDA, rotor, housing, motor, or equalizing pressures.

PCB Error

PCB and PSU Operational Check

Troubleshooting Actions for PCB Issues

Actions for replacing electronic housing or contacting the factory.

Thermistor Error

Thermistor and PCB Operational Check

PSU and Troubleshooting Actions

Check PSU operation and take actions like replacing housing or contacting factory.

Battery Error

Cable and PCB/PSU Checks

Troubleshooting Actions for Battery Issues

Actions include replacing batteries, electronic housing, or contacting the factory.

Display Issues

Troubleshooting Actions for Display

Actions include adjusting brightness, replacing display, or contacting factory.

Temperature Control Issues

Final Troubleshooting and Factory Contact

Address any remaining issues or contact the factory.