Instruction manual

60
P/N HN-IOM-1 82-0331 Copyright 2009 Mestek, Inc.
Finned copper tube gas boilers & water heaters – Control manual
Control specifications
11
Control Microprocessor based PID modulating
control ( NOT a safety limit )
Environment –40 °F to 140 °F
< 90% RH non-condensing
Input Power 24 VAC, 250 ma
Switched Line 120 VAC single phase (120 VAC
models only)
Relays Stage, Circulator, Alarm 8A 250 VAC
AC Interlocks 24 VAC – 120 VAC input
Control Inputs AA, Heat Demand, 4-20ma Enable, OA
override, T1-T2 (dry contact inputs)
Dimensions 9” wide: 6” high : 2” deep
Temperature Sensors NTC thermistor, 10K @ 77 °F, 335.67K
@ -40 F, 185 @ 150 °F ,+/- 1 °F
Environment –40 °F to 140 °F
< 90% RH non-condensing
USB 1.0
RS485 Console Modbus RTU, 19200 baud default
(9600 baud selectable), 8 bits, Even
Parity, 1 Stop Bit
Boiler-to-Boiler HEATNET
Network Optional LonWorks, BACnet available
260 North Elm Street Westfield, MA 01085
Tel: [phone] Fax: [phone]
7555 Tranmere Drive Mississauga, ONT. L5S IL4 Canada
Tel: [phone] Fax: [phone]
— www.rbiwaterheaters.com —
A MESTEK COMPANY