ECONOMASTER II
Raypak heating and hot water boilers
For use in commercial hydronic heating
and domestic hot water applications, with
Raypak boilers and water heaters.
• Raytherm
• Hi Delta
The Raypak Economaster II is a solid-state timedelay relay which regulates pump operation to
optimize system efficiency and reduce operating
costs. It activates the pump as needed to support
hot water demand, and shuts the pump down only
after evacuating the boiler's residual heat to the
heating system or hot water storage tank.
Energy saving pump control for
Raytherm Heater Series
The Economaster II saves money in several ways.
Electrical costs are reduced, since the pump is not
running constantly. In addition, gas costs are cut,
because residual heat that would otherwise escape through the flue is captured, and water is not
subject to cooling during unnecessary circulation
through the system. Finally, without constant water circulation, wear and tear on the boiler waterways is also reduced, prolonging the life of the
boiler. And the Economaster II delivers these
savings regardless of variable load conditions
experienced by the boiler!
Gas Savings with Economaster II
Model Number 181 624 1223 1826 3001
BTUH Input 181,000 627,000 1,222,500 1,825,000 3,000,000
Cost per Therm Annual Savings (dollars)
0.30 56 196 381 570 936
0.60 113 391 763 1139 1872
0.90 169 587 1144 1709 2808
1.20 226 782 1526 2278 3744
Savings based on typical heater operation. Your results may vary.
Economaster Circuit Board
Catalog No.: 5100.20-I Effective: 12-28-07 Replaces: 03-15-03
ELECTRICAL DATA
Adjustable Timing: 3 to 10 minutes (Factory set at 7 minutes)
Input Power (Primary): 24 VAC 50/60 Hz
Input Signal (Controller): 24 VAC or 120 VAC
Output (SPST Relay): Load - Up to 10 Amp-120 VAC Single Phase*
Ambient Temperature: -67°F to +158°F
* Motors larger than 3/4 HP and three-phase current require a contactor or motor starter
equipped with a 120 VAC coil.
SUGGESTED SPECIFICATION
The Economaster II pump delay controller shall maintain pump operation until all usable heat
from the combustion chamber is absorbed into the system or storage tank. It shall be adjustable
from 3 to 10 minutes to facilitate fine tuning to the specific system.
Raypak, Inc. reserves the right to make product changes or improvements at any time without notice.
©RAYPAK, INC., 2151 Eastman Ave, Oxnard, CA 93030 (805) 278-5300 Fax (800) 872-9725
www.raypak.com
Litho in U.S.A.