Data Sheet - The Brain® Model DMC80BS

Data Sheet - The Brain® Model DMC80BS
Water Temperature Control - Recirculation Systems
Digital
The Brain® Model DMC80BS
DMC80BS is a fully Digital Mixing Center (DMC), with
BrainScan® - hot water monitoring control module, designed
specifically to be the primary water temperature controller in a
continuously pumped circulating hot water system.
Digital technology provides enhanced water temperature control
accuracy which resists zero system demand “Temperature
Creep” without the use of a manual throttling valve or a
temperature activated pump shut-off device (aquastat).
Operational Specifications (DRV80)
• +/-2°F water temperature control at points of use 25’
downstream during demand
• +/-2°F water temperature control at the DRV during zero
system demand “idling” periods
• 2°F minimum valve inlet to outlet temperature requirement
(system recirculation temperature loss)
• Automatic shutoff of hot water flow upon cold water inlet
supply failure
• Automatic shutoff of hot water flow in the event of a power
failure
• Programmable set point range of 81-158°F (27-70°C)
• Programmable thermal disinfection mode
• Programmable 1st level hi/lo temp alarm display
• Programmable temperature error level for safety shutdown
Hot Water
Inlet
3 Flange
Mixed Water
Outlet
3 Flange
Cold Water Recirc
Inlet
Return
3 Flange 2 Sweat
BrainScan
Service By-Pass
(Normally Closed)
Pressure Gauge
Thermometer
48.0
(1219)
Technical Specifications (DRV80)
•
•
•
•
•
•
•
•
•
•
•
Return
To Heater
1 Sweat
Butterfly Valve
Strainer
100-240 V AC
Polymer Electronics Enclosure
Stainless Steel Valve Construction
Complete Assembly Lead Free Compliant
Maximum inlet HW supply temperature 185°F (85°C)
Minimum Circulation Flow – 10 GPM/38 LPM
Minimum System Draw Off - 0
ASSE 1017, CSA B125 and CE Certified
Operational water pressure of 10-150 psig
Display in °C or °F
Shipping weight 679 lbs (308 kg)
Wafer Check Valve
DRV80
Check Valve
52.0
(1321)
For a submittal drawing, refer to D40816.
Connectivity
SPCO Relay Outputs – Relay which is energized during
operation.
LCD Display – Provides information on set point, delivered
temperature, error codes and alert conditions.
RS485 Serial Port – Connects the DRV to either BrainScan or
Modbus.
BrainScan® – BAS interface for Modbus, Bacnet™ or
LonWorks™ plus operates as a web server.
Modbus – DRV can be configured to communicate directly
with Building Automation Systems (BAS) using Modbus
protocols.
Recirculation Systems - Digital (gpm)
Pressure Drop (psi)
Model
5
10
15
DMC80BS
94
133
163
20
188
Minimum System Draw-Off
Maximum Flow @7.5 ft/sec.
CV
0
165
42
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong Hot Water Group, 221 Armstrong Blvd., Three Rivers, MI 49093 – USA Phone: 269-279-3602, Fax: 269-279-3130
armstronginternational.com
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