Hydronic Zone Controls

FUEL ECONOMIZER

The ARGO DPM2 monitors outside temperatures to adjust boiler water temperatures to match outdoor demand, maximizing efficiency and reducing fuel usage. Typical heating cost savings average 10-15% annually (depending on climate). The DPM2 reduces/increases boiler temperatures gradually reducing expansion/contraction noises in the home. Can be used in conjunction with any “ARM” series relay with supplied data port wiring harness, or as a stand alone control. DPM2 controller supplied with “ARM” relay compatibility cable, strap on supply water sensor, and outdoor sensor with shield.

CAT. NO. MFG. NO. POWER SUPPLY RELAY CAPACITY Sensor 5C915 DPM-2

20-28 VAC / 2 VA 24 VAC / 48 VA * Accurate up to 500’ with 18 gauge wire 1005 Ohms at 70° F* 0.5 - 1.5

RESET RATIO MAX. TEMP. DIFFERENTIAL EACH 150° - 210° 5° - 15°

$364.93

MULTI-PURPOSE SWITCHING RELAY

Low cost relay for most switching func- tions, including circulators, pumps and motors. Full 10-amp contact rating, 10 VA transformer, sealed plug-in style re-

lay contacts, terminal board wiring. Replaces: Honeywell RA89A, R845A, R482C, R19A, R182C; White-Rodgers 809-189, 829-845.

CAT. NO. MFG. NO. SUPPLY VOLTAGE 120

5C955 SR501

CONTROL CIRCUIT

SWITCH ACTION

24v, 2 or 3-wire DPDT EACH $100.83

CAT. NO. MFG. NO. MAX. COMBINED LOAD NO. OF ZONES EACH 5C970 SR502 5C971 SR503 5C972 SR504 5C973 SR506

15 amps 15 amps 20 amps 20 amps

2 3 4 6

$289.21 $268.63 $404.17 $439.60

MULTI-ZONE

SWITCHING RELAYS with Priority Circuit

Taco switching relays combine clearly labeled PC board layouts

with advanced features that allow for total system customization. 24V power input or output terminal Features include external diag- nostic lights, switchable priority, fuse protected, internal isolated end switch and standard snap out relays.

REPLACEMENT

PLUG-IN RELAYS for Taco Multi-Zone Switching Panels

The 5C976 is a replacement plug-in cube relay, 120 VAC coil. CAT. NO. MFG. NO.

EACH 5C976 SR120-001RP $42.45

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CONTROLS