Power to run the fan and gauge, Using the fan with mains power, Using the fan with a power generator – Retrotec Blower Door User Manual
Page 52: 2 using the fan with mains power, 3 using the fan with a power generator
Page 52 of 87
©Retrotec Inc. 2015
7. Power to run the fan and gauge
7.1
Status lights indicate power and control connections are
ready to go
Current Retrotec Door Fans have two LED lights on the Fan Top. “Mains Power” indicates the power status next to
the AC power input. The second LED, “Status”, indicates status of the connected gauge.
The 3300(SR) series fan includes a three-phase power supply, which contains two power status lights.
Table 3: 3300SR fans mains power – power input monitoring
3300 Series Fans
100 – 140 VAC, 22 Amp
210 – 260 VAC, 14 Amp
Indication
Solid green
Off
Low voltage input
Solid green
Solid green
High voltage input
2000 Series Fans
Indication
Solid green
Voltage input
The 3300(SR) fan will operate at a reduced efficiency level when connected to a low voltage input. It is safe to use,
but may not reach its maximum operating speed.
Table 4: DM-2 status light indications
DM-2 Status Light
Indicates
Blinking red
Lost communication with DM-2
Solid green
Good communication with DM-2
Flashing green
DM-2 not connected or turned off
7.2
Using the Fan with Mains Power
The 3300 and 3300SR fans are not designed to operate on GFCI protected circuits. Doing so may cause the circuit
breaker to trip. Do not operate multiple 3300 or 3300SR fans on the same circuit. Stove top electrical outlets are an
ideal 20A circuit to which to connect the 3300(SR) fans.
In European countries where a 50 Hz power system is used the fans will run 20% slower.
7.3
Using the Fan with a power generator
Retrotec recommends a generator with inverter type AC power output. Size the generator capacity above the
maximum power required in order to reduce distortion of the AC power waveform. The higher the rated power
output, the better. Suggestions for minimum generator output sizes are 3000W for Door Fans and 500W for
DucTesters.
Table 5: Acceptable generator power output for specific fans.
Fan
Operating
Voltage
Max Operating
Current (Watts)
Max Inrush Current
Minimum Generator
Power Output
3300 - 3 Phase Power supply, double
wall fan as found in: QMG, Q4E, Q5E
120VAC
22A (2640W)
Equal due to soft-start
ramp-up of inverter.
3000 W
208VAC
13A (2704W)
230VAC
10.5A (2415W)
240VAC
10.3A (2472W)