MERLIN BOOSTER PUMP
17
Rev C
MERLIN BOOSTER PUMP
For lower pressure and/or low temperature applications, a pressure
activated booster pump for Merlin is available. Refer to Figure 2 for help
determining when applications may require a booster pump to improve
system performance.
To install, connect the pump to the 1/2-inch inlet tubing, and plug in the
motor. The pump will automatically turn on and off whenever the Merlin is
producing water.
The Merlin booster pump is a variable speed pump designed to produce
water pressure at 62 to 68 psi (4.27 to 4.69 bar) regardless of the inlet
pressure. As with all pumps, make sure the water flow rate is at least 2
gpm (7.6 Lpm).
Pump Specifications
Inlet water pre-pump pressure range - 20 to 60 psi (1.38 to 4.14 bar)
Pump outlet pressure - 60 to 68 psi (4.14 to 4.69 bar)
Necessary water flow for proper pump operation - 2 to 4 gpm (7.6 to 15.1
Lpm)
Pump electrical ratings - 110 to 120 VAC, 60 Hz, 500 watt
Pump duty cycle - intermittent operation - 1 hour
Figure 10
We recommend using only the Merlin provided booster pump. Other
pumps may result in reduced membrane element or system life.
Motor Shell at 1.5 Amps
Thermal
Shut-Off
Temperature
0 10 20 30 40 50 60 70 80 90 100 110
120
200
180
160
140
120
100
80
60
TIME (Minutes)
P
ump Housing
Temper
atur
e (˚F)
PUMP HEAT RISE
NOTE:
The Merlin booster pump is a great way to increase flow for low
pressure applications. The pump will also help increase TDS rejection
and system efficiency.
