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
27
3602
Fax:
269
27
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?
No
Re-pipe to ensure
installed per instructions
Yes
No
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
s
?
Yes
No
Ensure there are no
cross-connections w/
any higher/lower temp
loops
Yes
Are the checkvalves
installed holding correctly?
Re
lace checkvalves
No
Yes
Temperature Control Issues Cont’d