34-50 04/02/2010
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BOILER FLOW RATE REQUIREMENTS
BOILER FLOW RATE REQUIREMENTS
AND FACTORY SUPPLIED* CIRCULATOR PUMP PERFORMANCE
Model
Circulator Size (120V)
Design
Flow Rate
GPM
Temperature Rise at
Design Flow In
Degrees in °F
Maximum Foot Head
of Circulator
at Design Flow Rate
Foot Head Loss
through PRIMERA
at Design Flow Rate
HP Amp Draw
400 1/6 2.1 30 23 12 8
540 1/6 2.1 30 30 12 8
750 2/5 4.8 61 21 15 10
1000 3/4 8.2 76 23 21 12
1200 3/4 8.2 46 45 24 18
1600 3/4 8.2 61 45 23 18
2000 1 11.2 76 45 28 19
* Pumps are supplied as standard equipment with PRIMERA
®
water heaters (Model W series). Pumps are not included
as standard equipment for PRIMERA
®
boilers (Model B series), but may be selected from the optional equipment list. If
a Cupronickel heat exchanger is supplied, pump specifications may change. Consult Riverside Hydronics.
CIRCULATOR PUMP WIRING
PRIMERA
®
water heaters and boilers require a properly sized circulator pump. Whether factory or locally supplied, wire
single-phase circulator pumps as shown below:
Important: Lubricate the pump to the manufacturer's recommendations. The warranty does not cover pump damage
due to inadequate lubrication.