Startup Settings; Program Change Settings; Startup Sequence; Sensor Type - heat-timer Mini-MOD Installation And Operation Instruction Manual

startup settIngs

prograM cHange settIngs

To be able to change the Mini-MOD settings the Program/Run Switch must be set to Program.
The switch is located under the Enclosure Wiring Cover for security. The Enclosure Wiring
Cover can be securely closed using a lock.

startup sequence

Button: MENU/<System Startup>
• When powered, the Mini-MOD performs a self diagnostics-test on its components.
• On the first power up, the System Startup screen will appear after the initialization is
complete. If it doesn't, the Mini-MOD has already been configured.
• The System Startup menu sets the main parameters like the type of sensor, the type of
output, and the modulating mode.

sensor type

Set Point °F, Set Point °C, Reset °F, Reset °C
Button: MENU/<System Startup>/..../Sensor type
• Reset mode is only available if an outdoor sensor is connected to terminals 25 and 26. DO
NOT select Reset without an outdoor sensor.
• The same Heat-Timer temperature sensor can display in either °F or °C.
• If °F is selected, all temperatures and settings will be displayed in degrees Fahrenheit and
the Mini-MOD will operate as a Set Point Control in degrees Fahrenheit.
• If °C is selected, all temperatures and settings will be displayed in degrees Celsius and the
Mini-MOD will operate as a Set Point Control in degrees Celsius.
• Set point mode does not require an outdoor sensor. If an outdoor sensor is connected in Set
Point mode it will be used only as an outdoor cutoff point. That is, to turn the boilers and
system pump off.

eMs Input Mode

(availaBle in seT poinT only)
Disable, Enable
Button: MENU/<System Startup>/..../EMS Input Mode
• This allows the Mini-MOD to receive an external set point from an EMS/BMS system.
• You must select the 4mA (min) and 20 mA (max) Set Points in the following screen.
• The 4mA can be set to any temperature between 70ºF to 200ºF.
• The 20mA can be set to any temperature between 90ºF to 240ºF. However, the minimum
must be 20ºF higher than the 4mA setting.
• Connect the 4-20mA EMS Control Interface to the Mini-MOD RS485 connection.

output type

4-20mA, 0-5V, 0-10V, 1-5V, or 2-10V Outputs
Button: MENU/<System Startup>/..../Output A type/Output B type
• Outputs can be configured to 4-20mA operation (current) or any of the voltage ranges (0-5V,
0-10V, 1-5V, 2-10V). Check the modulating motor to determine its control requirements.
• When using Extension panels, connect them prior to configuring the Output Type.
Otherwise, the Mini-MOD might not recognize them properly.
• Select the appropriate Output Type for each of the boilers. The Mini-MOD can have a
different Output type for each boiler.
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
Mini-MOD & Mini-Extension Installation Manual
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz , 12VA MAX
USE COPPER CONDUCTORS ONLY
ENCLOSED
ENERGY
CAUTION
: RISK OF ELECTRIC SHOCK
MANAGEMENT
More than one disconnect switch may be required
EQUIPMENT
99RA to de-energize the equipment before servicing.
Default: Set Point °F
Default: Disable
Default: 4-20mA
SYSTEM
A
B
C
alert
D
A good practice after performing
any Startup menu modifications
is to check all operating settings
and adjustments to match the
new settings.
PROGRAM
-------- SETTINGS ----
Season Winter
Set Point
<System Settings>
<Maintenance>
<History>
<System Startup>
BACK SELECT
--- SENSOR TYPE ---
o
Set Point F
o
Set Point C
o
Reset F
o
Reset C
▲ ▼
BACK
- EMS INPUT MODE -
Disable
Enable
▲ ▼
BACK
-EMS 4ma SETPOINT -
120
o
F
[
▲ ▼
BACK
-EMS 20ma SETPOINT-
220 o
F
[
▲ ▼
BACK
-- OUTPUT A TYPE --
4-20ma
0-10v
0-5v
2-10v
1-5v
▲ ▼
BACK
17
RUN
o
70 F
SAVE
SAVE
]
SAVE
]
SAVE
SAVE