Bradley S19-2000 Series, Installation Manual

Page: 5 / 22

Installation S19-2000, S19-2000EFX
7/18/2012฀ 5
5
Optional Water Recirculation Setup
Check Valve
(Typ)
COLD
HOT
Heat Trap
28" Drop
Balancing Valve (Typ)
Water
Heater
Storage
Tank
Tempered Water Flow
Return Flow
Temperature Switch
Recirculated
Tempered
Water
Recirculating Pump
Cold
Water
Recirculating the water in the system provides constant regulation of the water temperature. Flush the supply lines thoroughly
after completing installation. Close off all fixtures and label them as not available for use durin g the recirculating process.
1.฀Turn฀off฀the฀recirculating฀pump฀and฀turn฀on฀the฀water฀supply฀at฀emergency฀ixture฀(a฀water฀low฀rate฀of฀3฀–฀5฀GPM฀is฀required).
2.฀Let฀the฀water฀run฀through฀the฀system฀until฀a฀consistent฀temperature฀is฀obtained.฀If฀you฀do฀not฀obtain฀the฀required฀temperature,฀
refer to step #3 on previous page for temperature readjustment.
3.฀As฀soon฀as฀the฀water฀reaches฀the฀proper฀temperature,฀turn฀on฀the฀recirculating฀pump฀(make฀certain฀the฀proper฀system฀
temperature has been achieved before proceeding).
4.฀Check฀the฀water฀temperature฀at฀the฀return฀pump.฀If฀the฀temperature฀exceeds฀the฀appropriate฀level฀by฀2°F,฀adjust฀the฀temperature฀
high-limit฀switch฀(this฀will฀turn฀off฀the฀pump).฀Wait฀until฀the฀return฀water฀temperature฀is฀5°F฀below฀the฀appropriate฀level฀and฀adjust฀the฀
low-limit฀switch฀(this฀will฀turn฀the฀pump฀back฀on).
5. Open the balancing valve completely.
6.฀Turn฀off฀all฀ixtures฀and฀make฀sure฀there฀is฀no฀water฀running฀through฀the฀system฀(the฀cold฀inlet฀pipe฀should฀feel฀warm฀to฀the฀touch).
7.฀Let฀the฀system฀run฀for฀30฀minutes฀or฀longer฀without฀water.฀If,฀after฀thirty฀minutes,฀the฀water฀temperature฀increases,฀you฀may฀
readjust฀the฀temperature฀by฀slowly฀closing฀the฀balancing฀valve฀until฀the฀appropriate฀temperature฀is฀reached.
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