Acorn SFMV VALVE - Manual (Page 6)

Page 6 of 8
CAUSE SOLUTION PROBLEM
1. SET POINT DIFFICULT TO SET OR
CANNOT BE REACHED
SUPPLY TEMPS NOT WITHIN
SPECIFIED LIMITS
HOT AND COLD SUPPLIES ARE
REVERSED
CHECK DIFFERENTIAL TEMPERATURE
BETWEEN SUPPLIES AND OUTLET
REINSTALL VALVE WITH SUPPLIES
CONNECTED TO MARKED INLETS
2. DOES NOT MAINTAIN OUTLET
TEMPERATURE OR CHANGES
FLUCUATION IN SUPPLY
PRESSURES
CHECK VALVE/FILTERS BLOCKED
WITH DEBRIS
CHECK DIFFERENTIAL TEMPERATURE
BETWEEN SUPPLIES AND OUTLET
CLEAN CHECK VALVES/FILTERS
OVER TIME
3. DISCHARGE TEMPERATURE TOO
HOT OR TOO COLD
VALVE NOT ADJUSTED PROPERLY READJUST VALVE TEMPERATURE PER
INSTALLATION INSTRUCTIONS
4. CROSS FLOW CHECK VALVES FOULED CLEAN CHECK VALVES/FILTERS
5 NO FLOW FROM VALVE HOT OR COLD SUPPLY FAILURE
OR SHUTOFFS CLOSED OPEN SHUTOFFS OR RESTORE HOT
AND COLD SUPPLIES
CHECK VALVE/FILTERS BLOCKED
WITH DEBRIS CLEAN CHECK VALVES AND FILTERS
*Under Normal Operating Conditions.
Valve Specifications Continues:
Minimum Flow Rate per ASSE 1017*:
MV17-1: ......................................................... 0.5 gpm (1.9 lpm)
MV17-2: ............................................................ 1 gpm (3.8 lpm)
MV17-3: ............................................................ 2 gpm (7.6 lpm)
MV17-4: .......................................................... 3 gpm (11.4 lpm)
MV17-5: .......................................................... 4 gpm (15.1 lpm)
Valve Specifications:
Maximum Operating Pressure: ..................... 125 psi (861 kpa)
Maximum Hot Water Supply Temp: ..................... 180°F (82°C)
Outlet Temp. Range: ............................ 100°-160°F (38°-71°C)
Minimum Hot Water Supply* ....................................... 5°F (3°C)
Above Set Point
Flow Rate at 45 psi (310 kpa) differential:
MV17-1: ........................................................... 12 gpm (45 lpm)
MV17-2: ......................................................... 45 gpm (170 lpm)
MV17-3: ......................................................... 90 gpm (341 lpm)
MV17-4: ....................................................... 150 gpm (568 lpm)
MV17-5: ....................................................... 225 gpm (852 lpm)
TROUBLESHOOTING:
PIPING DETAILS:
Acorn Controls Division of Acorn Engineering Company ® , A member of Morris Group International ™
Date: 04/01/14
NOTE:
ASSE 1017 performance based on actual demand or
recirculation pump flow rate or a combination of both.
See FEATURES regarding control performance at
ZERO GPM user demand.
SFMV Installation & Operation Manual
Manual #7802-118-000
TYPICAL SHOWER PIPING DETAIL
MV17 SERIES
VALVE
TYPICAL SINGLE TEMP LAVATORY PIPING DETAIL
HOT
WATER
SUPPLY
COLD
WATER
SUPPLY
HOT
WATER
SUPPLY
COLD
WATER
SUPPLY
MV17 SERIES
VALVE
LAVATORY
MIXING
VALVES
SHOWER
VALVES