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Low Lead High Flow Thermostatic Mixing Valves
© Copyright 2015 Caleffi
Installation, commissioning and service instructions
ASSE 1017
Function
ASSE 1017 model 5231 series high flow thermostatic mixing valves are
designed to be installed at the hot water heater (point of distribution) and
cannot be used for tempering water temperature at fixtures as a point-of-use
valve. They are not designed to provide scald protection and should not
be used where ASSE 1070 devices are required. Series 5231 thermostatic
mixing valves can also be used for regulating the flow temperature in radiant
panel heating systems, to which it assures a constant and accurate control
with ease of installation.
Product range
5231 series thermostatic mixing valve. Union thread NPT male and
union sweat connections, sizes 1", 1 ¼", 1 ½", 2". Inlet port check valve
assemblies available separately for field installation.
Technical characteristics
Materials:
- body:
- shutter:
- springs:
- seals:
- check valve extension (field installed):
Suitable fluids:
Max. percentage of glycol:
Setting range:
Temperature stability:
Max. working pressure (static):
Max. working pressure (dynamic):
Hot water inlet temperature range:
Cold water inlet temperature range:
Mixed temperature range:
Max. inlet pressure ratio (H/C or C/H) for optimum performance:
Min. temperature difference between hot water
inlet and mixed water outlet for optimum performance:
Max. water hardness:
Certified to:
1. cUPC listed to ASSE 1017/CSA B125.3 Reduction of Lead in
Drinking Water Act Compliant: 0.25% Max. weighted average
lead content. Certifed by IAPMO R&T.
2. Meets requirements of ANSI/NSF 372 - 2011.
NA10341.02
www.caleffi.com
5231 Series
DZR low-lead brass
stainless steel
stainless steel
30% glycol solution
see table on page 2
200 psi (14 bar)
75 psi (5 bar)
120–195°F (49–91°C)
39–80°F (3.9–26.6°C)
95–150°F (32–66°C)
brass
EPDM
water
±3°F (±2°C)
2:1
20°F (11°C)
10 grains
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Related Manuals for CALEFFI 523160A
Summary of Contents for CALEFFI 523160A
- Page 1 NA10341.02 www.caleffi.com Low Lead High Flow Thermostatic Mixing Valves 5231 Series © Copyright 2015 Caleffi Installation, commissioning and service instructions Function ASSE 1017 model 5231 series high flow thermostatic mixing valves are designed to be installed at the hot water heater (point of distribution) and cannot be used for tempering water temperature at fixtures as a point-of-use valve.
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Page 2: Setting The Temperature
Code Description Flow 523160A 1" Union Thread NPT male 4.4 Cv 523168A 1" Union Sweat 4.4 Cv 523170A 1 ¼" Union Thread NPT male 4.4 Cv 523178A 1 ¼" Union Sweat 4.4 Cv 523177A 1 ¼” Union Sweat with outlet temp. gauge 4.4 Cv... -
Page 3: Principle Of Operation
If there are variations of temperature or pressure at the inlets, the internal element automatically reacts attempting to restore the original temperature setting. Thermal Shutoff The Caleffi 5231 series mixing valves require a minimum temperature differential from hot inlet to mixed water outlet of 20°F (11°C) to ensure... -
Page 4: Safety Instruction
SAFETY INSTRUCTION This safety alert symbol will be used in this manual to draw attention to safety related instructions. When used, the safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD. -
Page 5: Installation
Caleffi 5231 series thermostatic mixing valves are designed to be installed at the hot water heater and cannot be used for tempering water temperature at fixtures as a point-of-use valve. They are not designed to provide scald protection or chill protection service and should not be used where ASSE 1070 devices are required. -
Page 6: Application Diagrams
Application diagrams Radiant panels heating system application Radiant panels heating system application MAX 7 CALEFFI CALEFFI COLD BLUE SUPPLY CALEFFI CALEFFI MAX 7 CALEFFI CALEFFI COLD BLUE SUPPLY CALEFFI CALEFFI RETURN Radiant panel loop RETURN Radiant panel loop Domestic water system with recirculation... -
Page 7: Maintenance
Every 12 months at least, or more often if necessary. 1) Check and clean the system filters. 2) Check that any non-return valves positioned upstream of the Caleffi valve are operating correctly, without problems caused by impurities. -
Page 8: Troubleshooting
Troubleshooting Under normal operating conditions the Caleffi 5231 series thermostatic mixing valve will provide a very high level of performance. However, in some circumstances, where our maintenance plan is not followed, the following problems may arise. Symptom Cause Corrective action...