- ページ 6

コントロールユニット Acorn Engineering SFST-B-OT-ITGのPDF 設置、操作、メンテナンスの説明書をオンラインで閲覧またはダウンロードできます。Acorn Engineering SFST-B-OT-ITG 8 ページ。 Sfst series thermostatic mixing valve supply fixture

ページを印刷する

PIPING DETAILS:

ST7069
HOT
WATER
SUPPLY
TYPICAL 1069 APPLICATION PIPING DETAIL

TROUBLESHOOTING:

PROBLEM
1. SET POINT DIFFICULT TO SET OR
CANNOT BE REACHED
2. DOES NOT MAINTAIN OUTLET
TEMPERATURE OR CHANGES
OVER TIME
3. DISCHARGE TEMPERATURE TOO
HOT OR TOO COLD
4. CROSS FLOW
5 NO FLOW FROM VALVE
Acorn Controls
Division of Acorn Engineering Company
Manual #7802-117-000
COLD
WATER
SUPPLY
CAUSE
SUPPLY TEMPS NOT WITHIN
SPECIFIED LIMITS
HOT AND COLD SUPPLIES ARE
REVERSED
FLUCTUATION IN SUPPLY
PRESSURES
CHECK VALVE/FILTERS BLOCKED
WITH DEBRIS
VALVE NOT ADJUSTED PROPERLY
CHECK VALVES FOULED
HOT OR COLD SUPPLY FAILURE
OR SHUTOFFS CLOSED
CHECK VALVE/FILTERS BLOCKED
WITH DEBRIS
SFST Installation & Operation Manual
ST7069
TYPICAL 1070 APPLICATION PIPING DETAIL
Valve Specifications:
Maximum Operating Pressure: .................. 125 PSI (862 kPa)
Maximum Hot Water Supply Temp: .................... 180°F (82°C)
Minimum Hot Water Supply Temp.**: ................... 10° F (6° C)
Outlet Temp. Range*: ....................... 90°F-115°F (32°C-46°C)
Flow Rate: ................ 12 GPM (45 LPM) @ 45 PSI (310 kPa)
Minimum Flow*: ........................................ 0.5 GPM (1.9 LPM)
*In accordance with ASSE 1070 and ASSE 1069
**Inlet Supply Pressure Variation Up to 20%
CHECK DIFFERENTIAL TEMPERATURE
BETWEEN SUPPLIES AND OUTLET
REINSTALL VALVE WITH SUPPLIES
CONNECTED TO MARKED INLETS
CHECK DIFFERENTIAL TEMPERATURE
BETWEEN SUPPLIES AND OUTLET
CLEAN CHECK VALVES/FILTERS
READJUST VALVE TEMPERATURE PER
INSTALLATION INSTRUCTIONS
CLEAN CHECK VALVES/FILTERS
OPEN SHUTOFFS OR RESTORE HOT
AND COLD SUPPLIES
CLEAN CHECK VALVES AND FILTERS
, A member of Morris Group International
®
COLD
WATER
SUPPLY
HOT
WATER
SUPPLY
Above Set Point
Differential
SOLUTION
™
Page 6 of 9
Date: 09/22/17