
BMC and 
SPECIFICATIONS
Voltage Input:  | .  | . . .  | 
  | 120 VAC 60 Hz  | |
Power Consumption:  | .  | . . .  | .  | . . 12 VA Max  | |
Operating Temperature:  | |||||
Operating Humidity:  | .  | . . .  | .  | .  | 20% to 80%  | 
Dimensions:  | 
  | 11"W x 9" H x 3 ¾" D  | |||
Weight:  | .  | . . .  | .  | .  | 2.5 pounds  | 
BMC SPECIFICATIONS
Lead Stage Rotation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . Time ( 1 to 1440 Hours (60 days)), Manual, 
Pump Output:  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | . . . . . . . . . . . . .  | .  | .  | .  | (1) N.O. S.P.S.T  | |
Boiler Modes:  | . .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .Auto, Manual (0% - 100%), Standby, On, Off  | ||||||
Standby Time:  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | . . . . . . . . . . . . .  | .  | .  | . 1 to 60 minutes  | ||
Modulating Output Types: . . .  | 
  | Total of four outputs. Can be either Current   | ||||||||||||||||||||||||||||
Output Relay Ratings:  | 
  | (5) 1 Amp inductive (1/8HP), 6Amp resistive at 120 VAC 60 Hz, 15A total for all circuits  | ||||||||||||||||||||||||||||
. . . . . . . . . . . . . . . . . . . . . . . . . . . .up to two   | ||||||||||||||||||||||||||||||
Ignition Point %:  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . . . . . . . . . . . . . .  | .  | .  | . . . .  | 1 to 50%  | |||||||||||||
Modulation Start Point %: . . .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | . . . . . . . . . . . . .  | .  | .  | .  | . . .  | 0 to 100%  | 
Modulation Modes:  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . .  | . . . . . . . . . . . . . .  | .  | Normal or Parallel  | |||||||||||||||
Temperature Display: | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | . . . . . . . . . . . . .  | Fahrenheit or Celsius.  | ||||
Display: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Graphical Alphanumeric (7 rows x 21 char. each)
LED: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1) System Output relay, (4) Boiler Output relays
Sensor Ranges: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Outdoor temperature sensor 
Outdoor Cutoff Range:  | . . . . . . . . . . . .  | .  | .  | |||||||
Reset Ratio Range:  | . . . . . . . . . (1.00  | : 4.00) to (4.00 :  | 1.00) (Outdoor : System Water)  | |||||||
Offset Adjustment:  | . . . . . . . . . . . . . .  | . .  | .  | . . . . . .  | .   | |||||
Minimum Water Temperature:  | . . . . . . . . . . . .  | .  | .  | . . . . .  | . .  | 
  | 
  | 70°F/21°C to 170°F/77°C  | ||
Maximum Water Temperature (Reset Only):  | . . . . . . . . . . . .  | .  | .  | . . . . .  | .  | 
  | 90°F/32°C to 240°F/116°C  | |||
Set Point Temperature Range:  | . . . . . . . . . . . .  | .  | .  | . . . . .  | .  | 
  | 70°F/21°C to 250°F/121°C  | |||
EMS Temperature Range: | . . . . . . . . . . . .  | .  | .  | . . . . .  | .  | 
  | 70°F/21°C to 240°F/116°C  | |||
Domestic Hot Water:  | . . . . . . . . . . . . . .  | . .  | .  | . . . . . . with Priority or without Priority  | ||||||
Pump   | . . . . . . . . . . . . . .  | . .  | .  | . . . . . .  | . .  | .  | .  | . . .  | 0 to 360  | minutes  | 
Purge Delay:  | . . . . . . . . . . . . . .  | . .  | .  | . . . . . .  | . .  | .  | .  | . .  | 0.0 to 10.0  | minutes  | 
Lag Delay:  | . . . . . . . . . . . . . .  | . .  | .  | . . . . . .  | . .  | .  | .  | . . .  | . 0 to 60  | minutes  | 
Last Stage Hold:  | . . . . . . . . . . . . . .  | . . .  | . . . . . .  | . . . . . . 0F°/0°C to 30F°/17C°  | ||||||
Schedules: . . .  | . .  | . . . . . . . . . . . .  | 
  | (1) Day and (1) Night (Setback) settings per day (Require Shutdown or Tstat mode)  | ||||||||||||||||||||||||||||||
Night Setback:  | . .  | . . . . . . . . . . . . .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | . .  | .  | .  | .  | . .  | .  | .  | .  | .  | .  | . 0F°/0C° to 75F°/42C°  | |
Power Backup: | . .  | . . . . . . Lithium coin battery, 100 days minimum 5 year replacement (Maintains Clock in power outages).  | ||||||||||||||||||||||||||||||||
External Inputs: | .  | . . . . . . . . .Tstat Input/Shutdown Input/Setback Input, and Prove Input/DHW Input (Dry Contacts Only)  | ||||||||||||||||||||||||||||||||
Season:  | . .  | . . . . . . . . . . . .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | . .  | .  | .  | .  | . .  | .  | .  | .  | .  | .  | . . Winter and Summer.  | 
BMC-6X  SPECIFICATIONS
(Each 
Extension Numbering:  | . . . . . . . . . . . . . . . . . . . . . . . .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .  | .Toggle Switch A or B  | 
Boiler Outputs:  | . . . . . . . . . . . . . . . . . . . . . . . . .  | .  | . .  | .  | .  | .  | .  | .  | .  | . . . (6) N.O. S.P.S.T.  | ||
Modulating Output Types:  | . . . . . . . . . . . . . . . . . . . . . . . .  | 
  | (6)  | |||||||||
Output Relay Ratings:  | 1 Amp inductive (1/8HP), 6Amp resistive at 120 VAC 60 Hz, 15A total for all circuits  | |||||||||||
Connection to BMC and another extension: | . . . . . . . . Two RS485 connections using 6 wire phone cable (Cable is provided)  | |||||||||||
HT 
500 Blaine Street Michigan City, Indiana 46360
Part Number 
32