Honeywell C312-8

• Totally enclosed micro switch snap acting switches operate on temperature rise to setpoint
• Visible control point scale and external adjustments screw permit easy setting
• Horizontal insertion of the sensing element
• Direct/well immersion of the sensing element
• Remote bulb model may be used to sense air temperature in ducts and in outside air sensing applications
• Contacts break on temperature rise
• Screw terminals wiring
• Includes heat-conductive compound

Honeywell C290

• Totally enclosed micro switch snap-acting switches operate on temperature rise to setpoint
• Visible control point scale and external adjustments screw permit easy setting
• Direct or well immersion of the sensing element
• Remote bulb model may be used to sense air temperature in ducts and in outside air sensing applications Honeywell L4006A2007 High or Low Limit Immersion Aquastat Controller, 100 - 240 deg F, 5 - 30 deg F DifferentialSid Harvey Item #:C290A: Replaces Part #:'s : AQU4006A1678-C290 | AQU4006A2007-C290A | C290 | C290R |,
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  Honeywell C290A

• An immersion type liquid-filled sensing element actuates (2) snap switches
• (1) switch operates as a high limit control
• The other switch operates as a low limit and/or circulator control, depending on the model
• Controller may be mounted in any positioning and needs no leveling
• Separate, easy-to-read, calibrated dial and setpoint adjustments for each switch
• Differential adjustment on low limit or circulator switch on select models
• All adjustments accessible inside front cover
• Push-in terminals for quick connecting
• 1-sensing element for easy installation
• (2) SPST snap switches act independently at respective temperature settings
• 3" insulation depth
• 360 VA transformer load ignition electrical ratings
• High limit, low limit and/or circulator controllers used to regulate boiler water temperature in gas- or oil-fired hydronic heating systems

Honeywell C322-4A

• Immersion-type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems, including domestic hot water service
• Require 24 VAC thermostat with heat anticipator set at 0.2 amp (plus current draw of gas valve on L8124E)
• Include diaphragm powerhead and micro Switch assembly that respond to temperature changes in boiler water
• Mount directly to boiler
• Provide multi-zone control by using a separate circulator and R845 relay for each zone
• Electrical burner rating: 1.25 amp at 24 VAC; 30 VA (total load) terminals B1-B2 and TV-Z
• Electrical circulator rating: at full load: 7.4 amp at 120 VAC, 3.7 amp at 240 VAC; at locked rotor: 44.4 amp at 120 VAC, 22.2 amp at 240 VAC

Honeywell C320-15

• Immersion-type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems
• Require 24 VAC thermostat with heat anticipator set at 0.2 amp (plus current draw of gas valve on L8124E)
• Include diaphragm powerhead and micro Switch assembly that respond to temperature changes in boiler water
• Mount directly to boiler
• Provide multi-zone control by using a separate circulator and R845 relay for each zone
• Electrical burner rating: full load - 7.4 amp at 120 VAC line voltage, 3.7 amp at 240 VAC; locked rotor - 44.4 amp at 120 VAC line voltage, 22.7 amp at 240 VAC
• Electrical circulator rating: 7.4 amp at 120 VAC, 3.7 amp at 240 VAC full load; 44.4 amp at 120 VAC, 22.2 amp at 240 VAC locked rotor Honeywell L8124G1020 High Limit Triple Aquastat Relay, 120 VAC at 60 Hz, SPSTSid Harvey Item #:C317-8: Replaces Part #:'s : C318-8R,
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• Immersion-type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems, including domestic hot water service
• Require 24 VAC thermostat with heat anticipator set at 0.2 amp (plus current draw of gas valve on L8124E)
• Include diaphragm powerhead and micro Switch assembly that respond to temperature changes in boiler water
• Mount directly to boiler
• Provide multi-zone control by using a separate circulator and R845 relay for each zone
• Electrical burner rating: at full load: 7.4 amp at 120 VAC, 3.7 amp at 240 VAC line voltage; at locked rotor: 44.4 amp at 120 VAC, 22.7 amp at 240 VAC line voltage
• Electrical circulator rating: 7.4 amp at 120 VAC, 3.7 amp at 240 VAC full load; 44.4 amp at 120 VAC, 22.2 amp at 240 VAC locked rotor
• 1-1/2" depth insulation

Honeywell C317-5

• Non adjustment

Gorton Heating D18A

• 2-7/8" inside dimension