Press the left button, drag the mouse, rotate the cube, see more information

Limit Discounts

Through this webpage, choose online customer service communication, or message board. Leave your needs and get limited time discounts, up to 10% off, saving you a fortune. This discount has an indefinite period, and places are limited on a first-come, first-served basis.

Payment Method

We support various payment methods:
T/T payment
Alipay etc
Save time in your buying process.

Certified Product

The company's products have passed multiple national
for example:
United States: ASME
Eastern Europe: EAC
Russia: GOST
Singapore: MOMO
Buy products, buy with confidence, use with confidence

Product Type

Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

About Us

FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

Contact Us

If you are interested in our company or products, you can contact with us through online consulting, demand table submission, e-mails and telephones. Our staff shall wholeheartedly provide product information, application knowledge and good service for you.

Using the correct Honeywell Switching Relalys on Boiler

  • Offshore price : $20000-$100000 Get a quote on the right form
  • Minimum order quantity : 1 set :Using the correct Honeywell Switching Relalys on Boiler
  • Supply Capacity : 10 units/month :Using the correct Honeywell Switching Relalys on Boiler
  • Manufacturer/Brand : Fangkuai boiler
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

Leave Your Message And Get Price!

I need the quotation of , the fuel is , this capacity is , use for . My Name is , my Email is , my WhatsApp is , Please Send the detail information for me!

Popular products


θrion Gas Fired Steam Boiler


Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.


Gas(oil) Fired Integrated Hot Water Boiler


Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.


H6 Gas Fired Hot Water Boiler


Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.


T7 Vacuum Hot Water Boilerr


Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.


V6 Gas Fired Hot Water Boiler


Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.


Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy


Leave us a message

We will send out plans and quotations within five minutes

Name (optional)



Choose product type



Get display discount

Contact us

Global Sales Hotline:

Email: [email protected]

  • T3R Wireless Programmable Thermostat - Honeywell Home

    Easy-to-install boiler or zone valve interface ; Offers clear LED indications ; Override the thermostat and fire the boiler for a systems check with a one-button push; Direct wall mounting or wall-box mounting to match the position of an existing Honeywell device ; Single relay contact for 24–230V on/off appliancesGet Price

  • Heating Boiler Aquastat SelectionHow to select the right

    So if your heating appliance is a water heater that needs only a HI limit and LO limit it may use an aquastat like the Honeywell L6006C1018 offering a boiler temperature range of 65 to 200 deg F while the single purpose HI LO aquastat Honeywell L4006A2007 controls temperatures from 100 to 240 degF and adds a DIFF adjustable between 5 and 30 degF.Get Price

  • How pressuretrol works in steam boiler - Boilersinfo

    Jun 24, 2017 · Boiler Pressuretrol. Purpose of a pressuretrol. The pressuretrol starts and shutdown the boiler according to adjusted pressure it also controls its operating range. For example, an average operating range of a steam boiler may be 240 to 250 psi. When the steam pressure in the boiler drops 10 psi, the boiler will start up automatically.Get Price

  • honeywell switching relay ra832a -

    The manual that came with the boiler says to install a Honeywell Aquastat relay (L8148E) and a Switching relay (r845a). The manual shows a schematic for the wiring of these relays. The service tech that installed this system claims that the set up shown in the manual won't be able to tell the boiler's burners to fire from both thermostats.Get Price

  • hvac - Connect the heater boiler through a relay instead

    Mar 16, 2018 · I am wiring up a new thermostat for an old boiler, and the thermostat I am using needs a common wire (Proliphix NT130h -- I wanted an NT1X0e series, which use PoE and don't need C, but they are no longer available).. The system uses a Honeywell "aquastat" controller that has an integrated transformer hooked up to Rh and W, so there's no way to add a common C to …Get Price

  • Wiring Aquastat and Switch Relay ZC and ZR? | Stoker Coal

    Aug 11, 2020 · Thermostatic Controls - honeywell switching relay ra832a The diagram is correct and shows the pump connection. Be advised.. your second thermostat will not fire the boiler directly. The boiler will fire when the water temperature temp …Get Price

  • Honeywell ST9400S Temperature Controller Operation & User

    Temperature controls are switched off or set too low Check that the temperature controls in the system are set to appropriate levels Boiler or other s … 15 Honeywell ST9400S 4 Your ST9400S should have been set up to work correctly when it wasGet Price

  • Frequently Asked Questions

    are using for local override. This is setup in the installer mode and is not adjusted during normal operation. This is a fundamental rule with evohome. Whenever there is a heat demand in a zone either the heating valve relay or boiler relay is switched on. evohome evohome evohome Local Override – why doesn't it show on main schedule?. Where Get Price

  • Boiler Controls - Honeywell Boiler Controls - Energy

    Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for …Get Price

  • What is the correct aquastat replacement for a Honeywell

    Dec 22, 2013 · My gas boiler seems to be in good working order, except I have noticed a problem with the AQUASTAT RELAY TYPE L8148E/HONEYWELL. For example, the pilot come on without any problem, the thermostats in t … read moreGet Price

  • 95-6933 12 - L8148A,E Aquastat® Relays

    L8148A,E AQUASTAT® RELAYS 95-6933—12 2 3. Coat the well threads sparingly with pipe dope, install the well in the boiler tapping, and tighten securely. NOTE: Do not attempt to tighten using the case as a handle. 4. Refill the boiler and check for water leakage. 5. Insert the bulb element into the well until it bot-toms.Get Price

  • Honeywell AQ25A44B Programmable Boiler Relay Control Panel

    Sep 11, 2021 · A Low voltage control module wiring B Low voltage zone thermostats C Low voltage zone valves with end switches D Line voltage Boiler pump, DHW pump and AUX output E Review and set DIP switch settings – once DIP switches for the zoning module (AQ15740B) have been set, complete the "Installer Settings" diagram by filling in the circles to indicate the DIP …Get Price

  • Aquastat Temperature Control Quality Boiler Tips 101

    Based on the aquastat setting, this will limit the high temperature in the boiler to prevent overheating. The cutoff temperature for most hot water boilers is 180° F. There is a differential setting to make sure the boiler does not short cycle or run unnecessarily. Low Limit - The low limit has two purposes. If you use the boiler for domestic Get Price

  • Bdr91 Wiring Diagram -

    Dec 11, 2018 · Heating Zone Valve BDR91 Wireless Relay Box turning on at the same time as the Hot Honeywell wiring diagrams for the correct wiring of BDR91's for Combi .(BDR91) to your boiler, zone valve or Sundial valve 1 ount the Wireless Relay Box on a non-metal surface at least M 30cm from your boiler, other wireless device or metal objects 2 elease the Get Price

  • Thermostat | Boiler controls not working? | Hometree

    Aug 14, 2019 · Use the arrows to change the hours and minutes display on the clock. Press 'set time' or 'set clock' button to confirm your desired time. Use the arrow keys to adjust the time you want your boiler to turn off each day and press the 'set time' or 'set clock' button to confirm. Press the 'set' button again or switch your Get Price

  • Fire up boiler using second control — Heating Help: The Wall

    Mar 04, 2018 · Mar 3, 2018. #8. I am trying to upload the diagram of the taco switching relay. The drawn diagram is how the boiler is currently wired. I am replacing the line voltage thermostat with a low voltage one for zone 2 via switching relay. There are 2 terminals on the diagram for tt on the boiler at pins 5&6 of the relay.Get Price

  • Manual Honeywell CM727 (page 1 of 16) (English)

    the time settings to be correct. BDR91 Relay Box Controls Layout The relay box will normally be found mounted button to switch the boiler on and off. When the green LED is on – the boiler is on. 7 Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, ACS-ECC EMEA, Z.A. La Get Price

  • Wiring Honeywell Zone Valve - U Wiring

    Oct 10, 2021 · Honeywell zone control valve v8043e1012 need help wiring valves heating faqs how to v8043 manuals installation taco 24v diagram full ecobee install with u for at72d 2 home v4043 motorized 20 latest 3 4 in sweat n c hydronic manual parts low voltage normally closed v8043e1061 aquastat l8148e system boiler controls o your. I show how each part.Get Price

  • What Does A Boiler Relay Do?

    The relay on a boiler is the part of the boiler system which triggers the boiler to release heat when the thermostat calls for it. The thermostat is a device which measures the temperature of an area, and when the area gets too cold, it will send a message to the relay switch to …Get Price


    switch) & ZC/ZR Relays protect Boiler Aquastat. Premium plug-in replaceable relays High relay load rating – 7.2 Amp / 1/3HP CSA listed The DPM2 monitors outside temperature and adjusts boiler water temperature to match the outdoor demand – …Get Price

  • What is OpenTherm Technology and why use Honeywell evohome

    Dec 18, 2014 · When installed, an OpenTherm compatible boiler (such as an Intergas Xclusive 30) using OpenTherm compatible controls (Honeywell evohome paired with a Honeywell R8810A1018 OpenTherm Bridge for instance) will control your boiler's water temperature and modulate the appliance to the correct 'Control Setpoint' at all times.Get Price

  • Honeywell 3 Zone Valve Wiring Diagram - U Wiring

    Nov 01, 2021 · Heating Zone Valve BDR91 Wireless Relay Box turning on at the same time as the Hot Honeywell wiring diagrams for the correct wiring of BDR91s for Combi BDR91 to your boiler zone valve or Sundial valve 1 ount the Wireless Relay Box on a non-metal surface at least M 30cm from your boiler other wireless device or metal objects 2 elease the clip on Get Price


    boiler supplies adequate temperature to heat the indirect tank (see page 7). ZONE/ INDIRECT SWITCH POSITION ZONE/ INDIRECT SWITCH POSITION Connect thermostat or end switch from zone relay or multi-zone panel to T-T.Connect circulator to C2-C1.Move Zone/Indirect Switch up to Z. Connect end switch from circulator relay or multi-zone panel to ZC Get Price

  • How Do I Adjust a Honeywell Pressuretrol Controller? - Hunker

    A Honeywell Pressuretrol Controller is a device that monitors the pressure in a boiler. The Pressuretrol Controller will turn the boiler system off once the pressure within the boiler reaches a certain pressure. Once pressure in the boiler falls below a certain pressure the Pressuretrol Controller turns the boiler back on.Get Price

  • Central Heating randomly turning on when it should be off

    Jan 21, 2016 · Hi there, First time posting so hope can be of assistance. My central heating comprises a Baxi Duo-Tec Combi HE with a Honeywell Evohome Controller (latest Wifi version), wireless relay box (BDR91) and 6 Radiator Controllers (HR92). The problem I am experiencing, since setting up, is that when the heating switches off at the set off time, the boiler then fires …Get Price

  • 95-6940 - L8148A,E,J Aquastat Relays

    controllers for use with forced hydronic heating systems. The combination high limit and intermediate switching relay works with a low voltage (24V) thermostat to control burner and circulator circuits. A call for heat by the thermostat starts both the burner and the circulator. When boiler-water temperature exceeds the high-limitGet Price

  • Metasys Integrator Honeywell Burner and Boiler Control

    6 Metasys Integrator—Metasys Integrator Honeywell Burner and Boiler Control Application To integrate Honeywell equipment, you need the following components: • a properly installed Q7700 Communications Interface with a QS7850 GPI card installed in Slot 6 and Honeywell burner and boiler control equipment (a Honeywell representative is responsible forGet Price

  • Worcester Bosch Boiler Controls - Hassle Free Boilers

    Using the correct boiler controls can make your life easier, and your boiler more efficient. Worcester Bosch offers different types of controls for its combi and system boilers. They range from simple-to-operate mechanical timers to more practical digital programmers, room thermostats, and intelligent controls.Get Price

  • Aquastats: Diagnosis, Repair, Setting & Wiring Heating

    Guide to the Honeywell L8148-series aquastat controls on heating equipment: Features & applications for the L8148 Aquastat and links to product features & wiring or installation instructions for this and other Honeywell aquastats in current use for oil or gas fired heating equipment as well as some electric boiler equipment.Get Price

  • Honeywell R8285D5001 Boiler Control Center

    Honeywell Boiler Control Center. Fan center 50 VA transformer 4" X 4" Mounting plate DPST Switching relay (one power rated, one pilot duty) 12A For 120V full load, 72A with locked rotor Boiler Control Center. HONEYWEL BOILER CONTROL CENTER DPST. REPLACES R8285D-1026. From the Manufacturer. Honeywell Boiler Control Center.Get Price

7X24 Online