Install Instructions

ManualsBrandsCaleffi ManualsHeating Supplies1-1/2" Sweat High Flow Thermostatic Mixing Valve, 13 CV (Lead Free)

Low Lead High Flow Thermostatic Mixing Valves

5231 Series

NA10341

www.caleffi.com

ASSE 1017

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. They are not designed to provide scald protection and should

not be used where ASSE 1070 devices are required. Wherever a scald

protection feature is required, ASSE 1070 model mixing valves must be

installed. For safety reasons, it is advisable to limit the maximum mixed

water temperature to 120°F. 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", 1-1/4", 1-1/2", 2".

Technical characteristics

Materials: - body: low-lead brass (<0.25% Lead content)

- shutter: brass

- springs: stainless steel

- seals: EPDM

Suitable fluids: water

Max. percentage of glycol: 30% glycol solution

Setting range: see table on page 2

Temperature stability: ± 5°F (± 3°C)

Max. working pressure (static): 200 psi (14 bar)

Max. working pressure (dynamic): 70 psi (5 bar)

Hot water inlet temperature range: 120 – 195°F (49 – 91°C)

Cold water inlet temperature range: 39 – 80°F (3.9 – 26.6°C)

Mixed temperature range: 90 – 150°F (32 – 66°C)

Max. inlet pressure ratio (H/C or C/H): 2:1

Min. temperature difference between hot water

inlet and mixed water outlet for optimum performance: 20°F (11°C)

Max. water hardness: 10 grains

Certified to: *cUPC listed to ASSE 1017/CSA B125.3

Reduction of Lead in Drinking Water Act Compliant: 0.25% Max.

weighted average lead content. Reduction of lead in Drinking Water

Act Certified by IAPMO R&T.

*Listing pending for the 1” and 1¼” sizes.

Summary of content (8 pages)

PAGE 1
NA10341 www.caleffi.com Low Lead High Flow Thermostatic Mixing Valves 5231 Series © Copyright 2014 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-ofuse valve. They are not designed to provide scald protection and should not be used where ASSE 1070 devices are required.
PAGE 2
Code 523160A* 523168A* 523170A* 523178A* 523177A* 523180A 523188A 523190A 523198A Description 1" Union Thread NPT male 1" Union Sweat 1-1/4" Union Thread NPT male 1-1/4" Union Sweat 1-1/4” Union Sweat with outlet temp. gauge 1-1/2” Union Thread NPT male 1-1/2” Union Sweat 2” Union Thread NPT male 2” Union Sweat Flow 4.4 Cv 4.4 Cv 4.4 Cv 4.4 Cv 4.4 Cv 8.8 Cv 8.8 Cv 8.8 Cv 8.
PAGE 3
Recommended flow rates for temperature stability: Flow curves 1” 1-1/4” 1-1/2” 2” p (psi) 1" 1-1/4" 1-1/2" 2" Min. Max. (gpm) (gpm) 4.4 40 8.8 70 Cv 7 7.6 13 14.2 (psi) (bar ) 20 20 10 10 5 4 5 4 3 3 2 2 1 1 0.5 0.4 0.5 0.4 0.05 0.04 0.03 0.02 1.0 0.5 0.4 0.3 0.2 0.1 0.3 0.3 0.2 0.2 0.1 0.1 10 0 G (l/min) (gpm) 50 200 20 100 10 50 5 20 10 2 0.
PAGE 4
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. CAUTION: All work must be performed by qualified personnel trained in the proper application, installation, and maintenance of systems in accordance with all applicable codes and ordinances.
PAGE 5
Use 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. Wherever a scald protection feature is required, ASSE 1070 model mixing valves need to be installed.
PAGE 6
MAX 7 CALEFFI CALEFFI Application diagrams SUPPLY 10 8 6 4 2 0 10 8 6 4 2 0 10 8 6 4 2 0 10 8 6 4 2 0 10 8 6 4 2 10 8 6 4 2 0 0 CALEFFI HOT CALEFFI Key to symbols 2 1 MIN MAX 7 IX CALEFFI CALEFFI COLD BLUE 1 MIN MAX 7 HOT RED COLD BLUE MIX Safety relief valve Check valve SUPPLY RETURN Isolation valve Radiant panel loop Expansion vessel Filter Pump COLD 2 1 MIN MAX 7 MIX MIX RETURN Domestic water system with recirculation ASSE 1017 model application 2 1 MIN MAX
PAGE 7
Commissioning After installation, the valve must be tested and commissioned in accordance with the instructions given below, taking into account current applicable standards. 1) Ensure that the system is clean and free from any dirt or debris before commissioning the thermostatic mixing valve. Be sure water hardness is less than 10 grains. 2) It is recommended that the temperature is set using a suitable calibrated digital thermometer.
PAGE 8
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.