Hydronics

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Acceptance Capacity

1 gal (1) Acceptance Capacity 1+gal 1 gal
3 gal (1) Acceptance Capacity 3+gal 3 gal
6 gal (2) Acceptance Capacity 6+gal 6 gal
8 gal (1) Acceptance Capacity 8+gal 8 gal
17.7 gal (1) Acceptance Capacity 17.7+gal 17.7 gal

Amperage Rating

0.5 A (1) Amperage Rating 0.5+A 0.5 A
7.2 A (2) Amperage Rating 7.2+A 7.2 A

Body Material

Brass (49) Body Material Brass Brass
Brass/Bronze (1) Body Material Brass%2FBronze Brass/Bronze
Bronze (2) Body Material Bronze Bronze
Cast Gunmetal (1) Body Material Cast+Gunmetal Cast Gunmetal
Cast Iron (5) Body Material Cast+Iron Cast Iron
Copper Silicon Alloy (6) Body Material Copper+Silicon+Alloy Copper Silicon Alloy
Forged Brass (4) Body Material Forged+Brass Forged Brass
Stainless Steel (1) Body Material Stainless+Steel Stainless Steel

Boiler Output

24 VAC 0.5 A 12 VA (1) Boiler Output 24+VAC+0.5+A+12+VA 24 VAC 0.5 A 12 VA

Coefficient of Volume

2.8 Cv (1) Coefficient of Volume 2.8+Cv 2.8 Cv
3.5 Cv (3) Coefficient of Volume 3.5+Cv 3.5 Cv
7 Cv (1) Coefficient of Volume 7+Cv 7 Cv
7.5 Cv (2) Coefficient of Volume 7.5+Cv 7.5 Cv

Coil Voltage

24 VAC (3) Coil Voltage 24+VAC 24 VAC

Color

6/6 Black (2) Color 6%2F6+Black 6/6 Black
Blue (2) Color Blue Blue
Red (2) Color Red Red
Silver (1) Color Silver Silver
White (3) Color White White

Contact Form

DPDT (1) Contact Form DPDT DPDT
DPST (2) Contact Form DPST DPST
SPST (1) Contact Form SPST SPST

Control Range

-40 to 100 deg F (1) Control Range -40+to+100+deg+F -40 to 100 deg F

Control Type

Microprocessor PI (1) Control Type Microprocessor+PI Microprocessor PI

Depth

22 in (1) Depth 22+in 22 in
25 in (2) Depth 25+in 25 in
31 in (2) Depth 31+in 31 in

Diameter

8 in (1) Diameter 8+in 8 in
11.4 in (1) Diameter 11.4+in 11.4 in
12 in (2) Diameter 12+in 12 in
16 in (4) Diameter 16+in 16 in
21 in (1) Diameter 21+in 21 in

Diaphragm Type

100% Butyl Rubber (1) Diaphragm Type 100%25+Butyl+Rubber 100% Butyl Rubber
Butyl Rubber (6) Diaphragm Type Butyl+Rubber Butyl Rubber

Differential

+/-1 deg F (1) Differential %2B%2F-1+deg+F +/-1 deg F

Domestic/Import

Domestic (252) Domestic/Import Domestic Domestic
Import (64) Domestic/Import Import Import

Electrical Ratings

0.167 A (2) Electrical Ratings 0.167+A 0.167 A
0.167 A, 24 VAC, 3 to 5 min Time to Open/Close (1) Electrical Ratings 0.167+A%2C+24+VAC%2C+3+to+5+min+Time+to+Open%2FClose
200 mA Start, 24 VAC/70 mA/2 W Working Current/Power (1) Electrical Ratings 200+mA+Start%2C+24+VAC%2F70+mA%2F2+W+Working+Current%2FPower
<300 mA for 2 min, 24 VAC, 1 W Working Current/Power (1) Electrical Ratings %3C300+mA+for+2+min%2C+24+VAC%2C+1+W+Working+Current%2FPower

Finish

Nickel Plated (1) Finish Nickel+Plated Nickel Plated

Frequency Rating

50/60 Hz (1) Frequency Rating 50%2F60+Hz 50/60 Hz
60 Hz (1) Frequency Rating 60+Hz 60 Hz

Fuel Type

Natural/Propane Gas (5) Fuel Type Natural%2FPropane+Gas Natural/Propane Gas

Horsepower

1/15 hp (1) Horsepower 1%2F15+hp 1/15 hp
1/12 hp (4) Horsepower 1%2F12+hp 1/12 hp
1/8 hp (1) Horsepower 1%2F8+hp 1/8 hp
1/6 hp (1) Horsepower 1%2F6+hp 1/6 hp

Humidity Range

10 to 90 % (1) Humidity Range 10+to+90+%25 10 to 90 %

Inlet Size

1/2 in (1) Inlet Size 1%2F2+in 1/2 in
3/4 in (9) Inlet Size 3%2F4+in 3/4 in
1 in (5) Inlet Size 1+in 1 in
1 in FNPT (27) Inlet Size 1+in+FNPT 1 in FNPT
2 in (9) Inlet Size 2+in 2 in
3 in (4) Inlet Size 3+in 3 in
4 in (4) Inlet Size 4+in 4 in

Input Capacity

70000 Btu/hr (1) Input Capacity 70000+Btu%2Fhr 70000 Btu/hr
105000 Btu/hr (1) Input Capacity 105000+Btu%2Fhr 105000 Btu/hr
140000 Btu/hr (1) Input Capacity 140000+Btu%2Fhr 140000 Btu/hr
175000 Btu/hr (1) Input Capacity 175000+Btu%2Fhr 175000 Btu/hr
299000 Btu/hr (1) Input Capacity 299000+Btu%2Fhr 299000 Btu/hr

Measuring Range

0.15 to 0.8 gpm (1) Measuring Range 0.15+to+0.8+gpm 0.15 to 0.8 gpm
0.25 to 2 gpm (1) Measuring Range 0.25+to+2+gpm 0.25 to 2 gpm
30 to 210 deg F (2) Measuring Range 30+to+210+deg+F 30 to 210 deg F

Net IBR Rating

56000 Btu/hr (1) Net IBR Rating 56000+Btu%2Fhr 56000 Btu/hr
84000 Btu/hr (1) Net IBR Rating 84000+Btu%2Fhr 84000 Btu/hr
113000 Btu/hr (1) Net IBR Rating 113000+Btu%2Fhr 113000 Btu/hr
140000 Btu/hr (1) Net IBR Rating 140000+Btu%2Fhr 140000 Btu/hr
243000 Btu/hr (1) Net IBR Rating 243000+Btu%2Fhr 243000 Btu/hr

Number of Zones

3 (2) Number of Zones 3 3
4 (4) Number of Zones 4 4
6 (2) Number of Zones 6 6
12 (1) Number of Zones 12 12

Outlet Size

1/2 in (64) Outlet Size 1%2F2+in 1/2 in
5/8 in (2) Outlet Size 5%2F8+in 5/8 in
3/4 in (9) Outlet Size 3%2F4+in 3/4 in
1 in (15) Outlet Size 1+in 1 in
1-1/4 in (29) Outlet Size 1-1%2F4+in 1-1/4 in
1-1/4 in Union (16) Outlet Size 1-1%2F4+in+Union 1-1/4 in Union

Port Type

Full (6) Port Type Full Full

Power Rating

1/6 hp (1) Power Rating 1%2F6+hp 1/6 hp
40 VA (1) Power Rating 40+VA 40 VA
50 VA (2) Power Rating 50+VA 50 VA

Power Supply

24 VAC, 10%, 60 Hz, 1.5 VA (1) Power Supply 24+VAC%2C+10%25%2C+60+Hz%2C+1.5+VA 24 VAC, 10%, 60 Hz, 1.5 VA

Primary Voltage

120 VAC (4) Primary Voltage 120+VAC 120 VAC

Radius

3/8 in (1) Radius 3%2F8+in 3/8 in
1/2 in (1) Radius 1%2F2+in 1/2 in
5/8 to 3/4 in (1) Radius 5%2F8+to+3%2F4+in 5/8 to 3/4 in

Relay Specification

2 A, 24 VAC, Latching (1) Relay Specification 2+A%2C+24+VAC%2C+Latching 2 A, 24 VAC, Latching

Reset Type

Automatic (9) Reset Type Automatic Automatic
Manual (5) Reset Type Manual Manual

Secondary Voltage

24 VAC (2) Secondary Voltage 24+VAC 24 VAC
24 VDC (2) Secondary Voltage 24+VDC 24 VDC

Terminal Designations

TH, Sensor (1) Terminal Designations TH%2C+Sensor TH, Sensor

Thickness

3/8 in (1) Thickness 3%2F8+in 3/8 in
0.48 in (1) Thickness 0.48+in 0.48 in
1/2 in (3) Thickness 1%2F2+in 1/2 in
15/16 in (1) Thickness 15%2F16+in 15/16 in

User Interface

DIP Switch (1) User Interface DIP+Switch DIP Switch

Vent Type

Direct (5) Vent Type Direct Direct

Voltage Rating

120/240 VAC (1) Voltage Rating 120%2F240+VAC 120/240 VAC
2.2 to 3.6 VDC (1) Voltage Rating 2.2+to+3.6+VDC 2.2 to 3.6 VDC
24 VAC (15) Voltage Rating 24+VAC 24 VAC
24 VDC (2) Voltage Rating 24+VDC 24 VDC
115 VAC (7) Voltage Rating 115+VAC 115 VAC
120 VAC (20) Voltage Rating 120+VAC 120 VAC
240 VAC (1) Voltage Rating 240+VAC 240 VAC

Working Pressure

80 psi (41) Working Pressure 80+psi 80 psi
125 psi (7) Working Pressure 125+psi 125 psi
145 psi (4) Working Pressure 145+psi 145 psi
150 psi (18) Working Pressure 150+psi 150 psi
150 psig (5) Working Pressure 150+psig 150 psig

Hydronics is the use of water as the heat-transfer medium in heating and cooling systems. A hydronic piping system is used to circulate chilled or hot water with the connections between the piping and the terminal units made in a series loop. The terminal units are the heat exchangers that transfer the thermal energy between the water and the spaces to be cooled or heated.

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