High Limit Protection, Low Limit & Circulator Triple Aquastat Relay, High = 10-Degree(F), Low Limit = 10-25-Degree Adj Differential
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High Limit Protection, Low Limit & Circulator Triple Aquastat Relay, High = 10-Degree(F), Low Limit = 10-25-Degree Adj Differential

Brand:
Resideo
SKU:
L8124A1007
Rating:
(37)
Q&A:
(9)
High Limit Protection, Low Limit & Circulator Triple Aquastat Relay, High = 10-Degree(F), Low Limit = 10-25-Degree Adj Differential
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$330.20 each
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Product Highlights

Electrical Rating icon
Circulator: 7.4 A @ 120 Vac, Burner: 7.4 A @ 120 Vac, Burner: 3.7 A @ 240 Vac
Differential icon
10° to 25°F (Low Limit), Adjustable, Fixed
Mount icon
Vertical
Temperature Range (F) icon
110°F to 220°F, 130°F to 240°F
Height icon
6-1/8"
Depth (Inches) icon
3-1/16" Depth

Description

Immersion-type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems, including domestic hot water service.

Features
  • Immersion-type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems.
  • Provide multizone control by using a separate circulator and R845 Relay for each zone.
  • Include diaphragm powerhead and Micro Switch+ assembly that respond to temperature changes in boiler water.
  • Mount directly to boiler.
  • Select models include large transformers and extra terminals for supplying power to low voltage zone valves.
  • Require 24 Vac thermostat with heat anticipator set at 0.2 A (plus current draw of gas valve on L8124E).

Product Specifications
Description :High Limit Protection, Low Limit and Circulation Control Triple Aquastat Relay with High limit : 10 F fixed low limit: 10-25 F adj. Differential
Application : High Limit Protection, Low Limit and Circulation Control
Operating Range, Low Limit (F) : 110 F to 220 F adj.
Operating Range, Low Limit (C) : 43 C to 104 C adj.
Operating Range, High Limit (F) : 130 F to 240 F adj.
Operating Range, High Limit (C) : 54 C to 116 C adj.
Differential Temperature (F) : High limit : 10 F fixed; low limit: 10-25 F adj.
Maximum Operating Pressure (psi) : 200 psi on outside of immersion well, 100 psi on capsule if inserted directly.
Maximum Operating Pressure (kPa) : 1378 kPa on outside of immersion well, 690 kPa on capsule if inserted directly.
Electrical Ratings (burner AFL) : 7.4 A @ 120 Vac
Electrical Ratings (burner AFL) : 3.7 A @ 240 Vac
Electrical Ratings (burner ALR) : 44.4 A @ 120 Vac
Electrical Ratings (burner ALR) : 22.2 A @ 240 Vac
Electrical Ratings (circulator AFL) : 7.4 A @ 120 Vac
Electrical Ratings (circulator AFL) : 3.7 A @ 240 Vac
Electrical Ratings (circulator ALR) : 44.4 A @ 120 Vac
Electrical Ratings (circulator ALR) : 22.2 A @ 240 Vac
Voltage : 120 Vac
Dimensions (in.) : 6 1/8 in. high x 4 3/8 in. wide x 3 1/16 in. deep
Dimensions (mm) : 156 mm high x 111 mm wide x 78 mm deep
Insulation Depth (in.) : 1 1/2 in.
Insulation Depth (mm) : 38 mm
Mounting : Vertical Mount
Operating Humidity Range (% RH) : 0 to 95% RH, non-condensing
Maximum Ambient Temperature (F) : 150 F at switches, 265 F at sensing element.
Maximum Ambient Temperature (C) : 66 C at switches, 129 C at sensing element.
Approvals, Underwriters Laboratories Inc : UL Listed (models with well): File No. MP466, Guide No. MBPR UL Component Recognized (models without well): File No. MP466, Guide No. MBPR2
Approvals, Canadian Standards

Specs

Application:

Triple Aquastat Relay

Circulator Control

High Limit

Low Limit

Temperature Range (F):

110°F to 220°F

130°F to 240°F

Electrical Rating:

Circulator: 7.4 A @ 120 Vac

Burner: 7.4 A @ 120 Vac

Burner: 3.7 A @ 240 Vac

Electrical Ratings (ALR):

Circulator: 44.4 A @ 120 Vac

Max Temp Differential:

25°F

10°F

Min Temp Differential:

10°F

Differential:

10° to 25°F (Low Limit)

Adjustable

Fixed

Height:

6-1/8"

Width:

4-3/8"

Depth (Inches):

3-1/16"

Operating Humidity:

0% to 95% (non-condensing)

Max Ambient Temp (°F):

150 F at Switches

265 F at Sensing Element

Mount:

Vertical

Voltage:

120v

Max Pressure (PSI):

100 (Direct Immersion)

200 (Immersion Well)

Max Temp (F):

240°F

Min Temp (F):

110°F

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