Stromquist & Company sold the first Delphi control systems in the United States. We are pleased to report that the installation of this advanced flamesafeguard system was very easy and our customer is thrilled with how well the system is working. Check out Matt’s demo of the amazing new Honeywell Delphi System!

The ML7999 Universal Parallel Positioning Actuator allows for a direct connection to fuel valves and dampers in the boiler system, thereby eliminating mechanical linkages. The ML7999 actuator is designed to operate combustion air dampers, butterfly gas valves, oil modulation valves, and flue gas recirculation systems requiring up to 100 lb-in torque. Each ML7999 has its own ID, so when the R7999 communicates with the ML7999 it is communicating with only the ML7999 chosen for commissioning. The R7999 Controlinks Controller is a microprocessor feature driven controller. The controller must be commissioned by using the ZM7999 software on a PC or laptop using a minimum operating system of Windows 95 or the S7999B System Display.

Commissioning consists of five basic steps:

1. Connect the R7999 to the communications port of your PC and logon to the software with a password. The password prevents the changing of your modulation curve without permission.

2. Specify the base configuration: one or two fuels, with or without FGR.

3. Select system parameters such as Low Fire Hold.

4. Specify the characteristics of the actuators (ML7999) and set the valve/damper end points for each actuator.

5. Create a modulation curve (profile) for each fuel and verify it from maximum to minimum modulation. This curve can have up to 20 points on the curve to allow for smooth money saving transitions from start to stop.

ML7999 Controlinks UPPA actuator

Commissioning of the ML7999 basically consists of location of the minimum and maximum open/closed position of the valve/damper and locking down the actuator.

Working together, the ML7999 and the R7999 allow the burner fuel to air ratio to be adjusted independently to maximize burner efficiency and reduce fuel consumption, which typically pays for the Controlinks system within one year.

S7999B1000 Controlinks Touch Screen

Let Stromquist and Company help you with your Honeywell Controlinks needs by calling us at 1-800-241-9471 or contacting one of our many CGNA members.

Yes, there is an answer! The never ending questions from clients about boiler energy savings, maximizing burner efficiency, reducing emissions and reduced excess air, increased equipment life, increased system reliability, flexibility and increased safety can now be answered.

With ever increasing popularity the Honeywell “Controlinks” fuel air ratio commercial/industrial combustion controls are sweeping the market.

To look at the future we need to understand how boiler efficiency was dealt with in the past. When a boiler is first commissioned at a new site the combustion efficiency is set by the installer using a combustion analyzer and adjusting the single modulating motor with jackshafts and their linkages to the fuel valve and air damper to achieve the best combustion efficiency. This “setup” during startup fixes the air-to-fuel ratio over the firing range of the boiler. Over time environmental and physical changes will reduce this “optimum” setup. Changes in temperature, pressure, and humidity, along with physical wear on the linkages and jackshafts, will alter the fixed air-to-fuel ratio causing increased operating and maintenance costs. The weakest “link” in this system is the linkage so let’s go “LINKAGELESS.”

The basic Honeywell Controlinks system consists of an R7999 Controlinks Controller, Q7999 Universal Subbase, ZM7999 Commissioning Software, and the ML7999 Universal Parallel Positioning Actuator (UPPA).

How the Controlinks system works… Four separate UPPAs (ML7999) replace the single actuator used with mechanical cam and linkage systems, providing independent control of the combustion air damper, the primary fuel, the secondary fuel, and the Flue Gas Recirculation (FGR) damper if used. The UPPAs (ML7999) are controlled by the Controlinks Controller (R7999), which responds to the load, and firing rate demands setup by the installer using a combustion efficiency analyzer throughout the boiler run/load cycle.

R7999 Controlinks Controller

ML7999 Controlinks Actuator

My next post will be on commissioning the Controlinks system, followed by a discussion on Controlinks features.

Let Stromquist and Company help you with your Honeywell Controlinks needs by calling us at 1-800-241-9471 or contacting one of our many CGNA members.

DELPHI Combustion Efficiency Panel

Historical note: Delphi the ancient city in Greece which housed the Oracle of Delphi who was consulted by kings and priests on all important matters of public policy and personal affairs.

The new Honeywell Delphi Combustion Efficiency Panel handles this job rather well in terms of burner/boiler combustion control.

Housed in a single NEMA 12 panel and designated the YP900 the Delphi system is a loop and logic based integrated flame safeguard control and fuel-air ratio control with O2 trim for boiler and burner applications.

Included in the completed Delphi panel assembly are a RM7840L1075 burner safety controller with wiring sub base, S7800A Display, Modbus, built in industrial panel PC with touch screen display, ABC900A loop and logic controller for load and O2 trim control. Also included in the YP900 panel is the O2 sensor, mounting accessories and Hall-effect speed sensor with tachometer.

The YP900 is designed to keep the fuel to air ratio to a minimum to provide complete combustion. Based on application the addition of the proper FSG amplifier, FSG time card, FSG scanner, ML7999B direct coupled actuators or HercuLine 2001 series actuators, and other components as deemed necessary, the Honeywell Delphi System, is the next step to greater combustion efficiency and control.

Ask your Stromquist Representative about DELPHI…