Installation Sheet

Symmons Industries, Inc. ■ 31 Brooks Drive ■ Braintree, MA 02184 ■ Phone: [phone] ■ Fax: [phone]
Copyright © 2018 Symmons Industries, Inc. ■ symmons.com ■ [e-mail] ■ ZV-3008 REV J ■ 100918
Trouble Shooting Chart
Problem Cause Solution
Thermometer in TempControl outlet
rises to temperature of the heater at
start of no draw (i.e. sink or
showers not running, etc.).
No circulation of tempered water
because return line is piped to the hot
water source only.
Re-pipe system to diagram 2 or 3
(pg. 9) which allows the discharge of
the pump (tempered water return) to
go back to the hot water source and
the cold inlet of the TempControl.
Hot water temperature at sink or
shower is below set point of
TempControl.
Sufcient circulation of tempered
water is not reaching the hot water
source.
Re-pipe system to diagram 2 or 3
(pg. 9) which allows the discharge of
the pump (tempered water return) to
go back to the hot water source and
the cold inlet of the TempControl.
Temperature rises.
Not piped to Diagrams 2 or 3. Ball
valve too far open.
Check valve must be installed on cold
supply to controller or adjust ball valve
(see diagram 2 or 3 on page 9).
Cannot elevate or decrease
tempered water by turning
adjustment bolt.
Piston stuck with foreign matter.
Remove cartridge and soak in
household vinegar for an hour. If
piston does not free after soaking
replace cartridge.
Temperature drops during draw (sink,
shower running, etc.).
Valve was set in no draw mode.
Run showers and sinks and then set
valve.
Problem Cause Solution
Bypass, cold to hot or hot to cold. Checks not properly seating.
Clean fouled checks, or if damaged,
replace damaged parts.
For Tempered Water Recirculated Systems
For Tempered Water Non-Recirculated Systems
WARNING: This product can expose you to chemicals including lead, which is known to the state of California to
cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.