Submittal Sheet
Technical Data
Materials
Body: low-lead brass
Shutter, seats and slide guides: PPO
Springs: stainless steel
Seals: EPDM
Performance
Suitable Fluids: water, glycol solution
Max. percentage of glycol: 30%
Setting range: 85–150°F (30–65°C)
Tolerance: ±3°F (±2°C)
Max. working pressure: 200 psi (14 bar)
Max. operating differential pressure: 75 psi (5 bar)
Max. hot water inlet temperature: 200°F (93°C)
Max. inlet pressure ratio (H/C or C/H) for optimum performance: 2:1
Min. temperature differential between hot water inlet and mixed water
outlet for optimal performance: 27°F (15°C)
Min. flow to ensure optimal performance: 1.3 gpm (5 L/min)
Certifications:
1. 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 Certifed by
IAPMO R&T.
2. Meets requirements of ANSI/NSF 372-2011.
Connections:
Press: ¾"
Lay length, hot to cold inlet: 3
7
⁄8"
MixCal™ Adjustable three-way
thermostatic mixing valve, Press
CALEFFI
Application
The Caleffi MixCal
™
521 series three-way thermostatic mixing valve
is used in systems producing domestic hot water or in hydronic and
radiant heating systems. It maintains the desired output temperature
of the mixed water supplied at a constant set value compensating for
both temperature and pressure fluctuations of the incoming hot and
cold water. The valve has been specifically certified to ASSE 1017 and
Low Lead Plumbing Law by IAPMO R&T.
Submittal Data 02902.2 NA — Issue Date 09/2015
Dimensions
Typical Specification
Furnish and install on the plans described herein, a MixCal™ three-way
thermostatic mxing valve as manufactured by Caleffi. Each mixing valve
must be designed with a low-lead brass body, a replaceable brass cartridge
chemical nickel plated, stainless steel springs, seals in EPDM, and
shutter,
regulating seats and sliding surfaces in anti-scale plastic, PPO.
Each
valve must also be designed for ±3°F (±2°C) temperature stability with a
tamper proof control knob to lock the temperature at the set value. The valve
shall be ASSE 1017 approved for point of distribution installation.
Low-lead
brass body (<0.25% Lead content) shall be certified by IAPMO R&T
and meets requirements of ANSI/NSF 372-2011.
Each valve shall be
Caleffi model 521 or approved equal. (See product instructions for specific
installation information.)
We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice. Contractors should request production drawings if prefabricating the system
.
Job name ______________________________________
Job location ______________________________________
Engineer ______________________________________
Mechanical contractor ________________________________
Contractor’s P.O. No. ________________________________
Representative ________________________________
Size ________________________________________
Quantity ________________________________________
Approval ________________________________________
Service ________________________________________
Tag No. ________________________________________
Notes ________________________________________
2015
HOT
COL D
MIX
MIN
M
A
X
7
1
2
A
FE
D
B B
C
A
A
HOT
COL D
MIX
MIN
M
A
X
7
1
2
A
FE
D
B B
C
A
A
MIX
E
D
A
30
50
70
90
110
130
150
170
190
210
F
MIX
E
D
A
30
50
70
90
110
130
150
170
190
210
F
Code A B C D E F Wt. (lb.)
521506A
3
⁄4" 2¾" 5
5
⁄8" 8
1
⁄4" 5
11
⁄16" 2
9
⁄16" 2.4
521516A*
3
⁄4" 2¾" 5
5
⁄8" 8
1
⁄4" 5
11
⁄16" 2
9
⁄16" 2.9
*Model with integral outlet temperature gauge.
Lay length, hot inlet to cold inlet: 3
7
⁄8"