Bristan ST PUMP20TN 설치, 운영 및 유지보수 지침 매뉴얼 - 페이지 16
{카테고리_이름} Bristan ST PUMP20TN에 대한 설치, 운영 및 유지보수 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Bristan ST PUMP20TN 20 페이지. Standard 1.5/2.0 bar twin/single ended shower pump
페이지 인쇄8 TROUBLE SHOOTING GUIDE
Symptoms
Pump will not start.
Reduced/intermittent flow.
No hot water.
Pump runs on with outlets
closed.
Pump starts with all outlets
closed.
Flexible hose leaks
8.11 Environment Protection: Your appliance contains valuable materials which
can be recovered or recycled.
At the end of the products' useful life, please leave it at an appropriate local civic
waste collection point.
Probable Cause
Insufficient gravity flow.
Electrical.
Pump jammed.
Integral motor thermotrip
activated.
Incorrect or no anti-aeration
flange fitted.
Blocked inlet filters.
Hot water temperature set
to high.
Blocked shower head spray
plate.
Air locked water feed.
Heating source not operating.
All hot water has been used.
Faulty thermostatic mixer valve.
Jammed flow switch.
Damaged reed switch or P.C.B.
Leak in system.
Air in system.
Not fitted correctly.
Damaged 'O'-rings.
Recommended Action
Check flow rate minimum of 0.8 l/min required on full hot
and cold.
Check power supply.
Check fuse (see fuse section).
Check circuit breaker is set.
Check wiring connections.
If motor 'Buzzes' switch off power and contact Bristan.
Wait for thermotrip to auto-reset and check that duty
point and run time is within specification (see technical
specification).
Check that the installation complies with installation
instructions.
Clean inlet filters (see maintenance section).
Reduce cylinder stat setting to 65
Clean in accordance with manufacturers instructions.
Vent hot water pump of air.
Check cold feed to hot water cylinder.
Check water level in cold water tank and that all stopcocks
and isolating valves are open.
Check boiler is switched 'on'.
Check cylinder thermostat.
Check immersion heater.
Check cylinder contains hot water.
Check tank volume is adequate.
Consult makers instructions.
Remove outlet hoses and check that flow switch sits in
lowest position. Check float for free movement.
If pump continues to run, this indicates a closed circuit in
either the flow switch reed or P.C.B. in the terminal box.
Contact Bristan.
Check tap washers, w/c valve washers, pipe joints.
Bleed through system without pump running until hot and
cold services run with no air.
Check that the hose running nut is fully tightened to the
pump and that pipework is pushed firmly in to push-fit
connection..
Check copper pipe ends are cleanly cut and deburred.
- 16 -
C max.
o
Cont ...