C O R P O R A T I O N
R
20 New Dutch Lane, Fairfi eld, NJ 07004 973-575-4004 • Fax 973-575-4052 • http://www.heat-timer.com
Description:
A Multiple-Boiler Modulating Control for Hydronic Heating
Systems Based on Outdoor Reset or a Set Point.
The Mini-
MOD Control provides buildings with comfortable, even heat,
while maximizing fuel savings. In addition, it incorporates many
additional features and fl exibilities that can be customized to each
application’s unique characteristics.
•
Hydronic Heating using Outdoor Reset or Set Point.
The
Mini-MOD control is designed to modulate multiple hot water
boilers. It can operate based on Outdoor Reset or a Set Point.
Each of the options has a set of pre confi gured, but adjustable
settings to meet the precise needs of each heating application.
•
Multiple Rotation Options.
The Mini-MOD can rotate the
lead boiler to promote even wear on each boiler. It has three
rotation options; Timed rotation that is adjustable from One
hour to 60 Days, Manual rotation, and Last-On/Last-Off.
•
Current Voltage Signal Modulation.
Each of the outputs can
be confi gured independently. That is, a single Mini-MOD can
control multiple boilers different modulation requirements.
•
Adding Boilers.
The Mini-MOD controls up to four boilers.
However, it can be connected to up to two additional Mini-
Extension panels, each with 6 stages. This allows the Mini-
MOD to modulate and manage up to 16 total boilers.
•
Parallel or Normal Modulation.
An advanced PID logic has
been developed to provide an effi cient, smooth, and adjustable
modulation that can fi t most applications whether the boilers
are to sequence normally, one after the other, or in parallel.
With numerous confi gurable parameters like; Last Stage Hold
and Soft-Off to eliminate the lead boiler short cycling; Lag
Delay to eliminate lag boilers short cycling. The PID logic can
be adjusted to meet your specifi c heating application.
•
System Output with Adjustable Run-On Delay.
The Mini-
MOD has a System Output relay the can be confi gured to run
a system pump or combustion air damper. The relay can be
adjusted to operate during boiler operation or when below a
specifi ed Outdoor Cutoff.
•
Digital Display.
The Mini-MOD’s bright graphical digital
display names each system parameter in plain English and
shows its precise value. The easy to follow menu system allows
users to quickly make changes to any system setting without
having to learn any codes or keyboard commands. The new
brightly lit LCD display can be viewed from a distance in
dimly lit boiler rooms.
•
Communicate with EMS (Energy Management Systems)
The
Mini-MOD with its built-in Shutdown and Prove inputs, is
capable of connecting to and being controlled by an EMS or
other controller.
•
Day and Night Schedule.
The control has an adjustable Night
Setback setting to help reduce fuel consumption. The built-
in schedule can be used to customize the operation for even
further temperature control and fuel savings.
•
Boost.
To bring a building quickly back to comfortable
temperatures after the cooler night period, the control has a
built-in Boost feature. The Boost allows the system to rise to
an increased temperature for a period of time.
•
Standby Boilers.
Each boiler can be set individually to be
automatically operated, fully on, manually adjusted, off, or be
considered a Standby boiler. The Standby boiler option puts
the boiler in as a backup with an adjustable standby delay. This
feature is great for less effi cient boilers that can be used in
periods of high demand.
•
Domestic Hot Water.
It can be confi gured with Domestic Hot
Water call option. It will increase system water temperature
when Domestic Hot Water is needed. In addition, it allows for
optional priority of the domestic hot water over heating.
HYDRONIC MODULATING SEQUENCING CONTROLS
With • Modulate 4-Boilers using PID Logic
• Parallel or Normal Modulation
• Sequence Boilers based on Reset or Set Point
• Domestic Hot Water with Priority Option
• Outputs 4-20mA, 0-10V, 0-5V, 2-10V, and 1-5V Signals
• Add more Boilers using Mini-Extensions up to 16 Boilers
Mini-MOD
and
Mini-Extension
