How NOT To Install RIB Relay

In our continuing efforts to bring to our readers the BEST controls information available we at Control Trends must at times step back and shake our heads in amazement. This install needs NO comment just a BIG WOW. Track Rail is cheap but I guess the box and a little electrical tape is too!!

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Honeywell RM7800 Fault Codes

Update 8.4.2013 Click here to see a video on how to use the RM7800 Fault codes.

Fault codes are used on the Honeywell RM7800 series of boiler burner flame safeguard controls. These codes help the service technician identify problems that occur with the relay or the components that are wired to the relay.

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Commission a Variable Frequency Drive in 36 Seconds?

Starting up a variable frequency drive can be as much an art as it is a science, and because a variable frequency drive can save so much money, you are going to see them on just about any project you bid. When you are estimating a job, how much do you add for the variable frequency drive? The price of a drive is easy to figure (the price is the price), so conventional wisdom would say go with the low price drive. But is that really the smart move?
Most of the pros I know say no. [Read more…]

Product Review: The Honeywell T775 Controller

The Honeywell T775 Series stand alone controllers have now been on the market for several years. This diverse controller offers the technician a multitude of installation options on one small package.

This controller that stands 8 inches wide by 4 inches wide can be mounted anywhere within 1000 feet of its sensor location and be purchased as a standard enclosure or a NEMA 4X enclosure.

The T775 has an EEPROM that saves all values entered. The date and time values are retained for 24 hours after power loss. After power loss of more than 24 hours values may need to be reentered.

IMPORTANT:  If a high limit set point is entered into a T775 controller this value is IRREVERSIBLE !!

 

Features:

Voltage: 24/120/240 note: cannot be used for DC voltages

Set Point Range: -40 to 248 F

T775A and B models:  relay outputs from 1 SPDT to 4 SPDT (no analog outputs). Sensor inputs 1 to 2. Floating outputs 0-to 2

T775M models:  Modulating with analog outputs of 2-10Vdc or 0-10 Vdc or 4-20 mA or Electronic Series 90.  Relay outputs from 0 to 4 SPDT. 2 sensor inputs

 

T775R models:  RESET OPTION.. 0 to 2 analog outputs 0 to 4 SPDT relay outputs. 0-2 floating outputs.

Sensors: update display and controller every 1 second

Accessories:

C7031D2003 5 inch immersion sensor with well

C7030B1009 wall mount room sensor

C7100D1001 12 inch Duct Averaging Temperature Sensor

When the need for a standalone controller presents itself think Honeywell and let Stromquist and Company help you select the right controller for your needs. Give us a call… Atlanta 1-800-241-9471 or Orlando 1-800-638-7828

HVAC Control Technical Tip: The Sunshine State Weather Protector

The idea for this article came across my computer in the form of an e-mail sent to me by a fellow employee of Stromquist and Company with an attached photograph.

I know we all strive in our chosen industry to do things right with as much professionalism as our clients will afford us. I also realize at times even the best of service personnel will make installation mistakes. Some of these mistakes are quite humorous, some are quite expensive to fix, and some of these installations could be quite possibly dangerous.

Since the Control Trends website is duty bound to get, you our readers, the best information on new controls, controls installation, and new trends in the control industry would it not be appropriate to also show how not to install a product?

We at Control Trends will not mention anyone’s name or any company name we do this only as an insight to possible installation mistakes and how to avoid these mistakes.

This first installation is quite humorous to me and I call it “The Sunshine State Weather Protector” [Read more…]

New Johnson Controls Variable Frequency Drives

Why are Variable Frequency Drives like the Johnson Controls VS Series of Variable Frequency drives so popular? Well for one reason they can save a heck of a lot of money. According to Maintenance Resources a variable frequency drive can save up to 30% on energy costs. So what makes the Johnson VS series variable frequency drive so special? To begin with the size, with mechanical room space at a premium the compact size of the Johnson Controls  VS series makes it a logical choice for retrofit applications

The unique bypass configuration is also a space saver. But the compact design is not even the best part… [Read more…]

The Direct Coupled Actuator you are Looking for not in stock? No problem

One of the really cool things about direct coupled actuators like those made by companies like Belimo, Honeywell, Johnson, Siemens, and Invensys TAC is that they can be usually be inter changed. Meaning if you have a 35 inch pound Belimo direct mount actuator, but there is not a Belimo 35 inch-pound direct mount actuator to be found in your city, you should be able to replace it with a Honeywell 35 inch pound direct mount actuator, or a Johnson 35 inch-pound direct mount actuator. Although each brand of actuator has it’s pros and cons they all for the most part  close in quality and value. So if you have a job that has all Belimo and you need a replacement Belimo actuator but your local distributor does not have one on the shelf and you cannot wait for a Belimo actuator to be shipped then most likely you can find a [Read more…]

Belimo offers new linkage available at Stromquist & Company

Belimo is offering a really cool new linkage the Belimo ZG- JSL Belimo has created the quickest install designed with ease in mind. The ZG-JSL linkage is designed to facilitate the attachment of select Belimo actuators to a damper’s jackshaft. The unique open ended design allows the linkage to clamp on to any part of a jackshaft measuring from 1/2″ to 1.05″ in diameter.Saves time and cost

The Belimo ZG-JSL linkage simplifies typical installations and eliminates the difficulties where jackshaft bearings are hard to access. By improving the method of installing actuators onto jackshafts, the installer saves on installation time translating into a cost savings. The quicker the install, the sooner the installer can move on to the next project. Now with the Belimo ZG-JSL linkage all jackshaft installations will only take minutes!Ideal for tight spaces [Read more…]

Belimo offers new linkage available at Stromquist & Company

Belimo is offering a really cool new linkage the Belimo ZG- JSL Belimo has created the quickest install designed with ease in mind. The ZG-JSL linkage is designed to facilitate the attachment of select Belimo actuators to a damper’s jackshaft. The unique open ended design allows the linkage to clamp on to any part of a jackshaft measuring from 1/2″ to 1.05″ in diameter.Saves time and cost

The Belimo ZG-JSL linkage simplifies typical installations and eliminates the difficulties where jackshaft bearings are hard to access. By improving the method of installing actuators onto jackshafts, the installer saves on installation time translating into a cost savings. The quicker the install, the sooner the installer can move on to the next project. Now with the Belimo ZG-JSL linkage all jackshaft installations will only take minutes!Ideal for tight spaces [Read more…]