Data Sheet - The Brain® Model DRV40RBS

Data Sheet - The Brain® Model DRV40RBS
Water Temperature Control - Recirculation Systems
Digital
The Brain® Model DRV40RBS
DRV40RBS Digital Recirculation Valve (DRV), 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
• +/-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
1.5”
Mixed Water
Outlet
Technical Specifications
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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 - 5 GPM/19 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 29 lbs (13 kg)
Connectivity
1.5”
Hot Water
Inlet
1”
Return To
Heater
1”
Recirc
Return
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
DRV40RBS
48
70
85
20
98
1.5”
Cold Water
Inlet
For a submittal drawing, refer to D40810.
Minimum System Draw-Off
Maximum Flow @7.5 ft/sec.
CV
0
41
22
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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