
Planning the installation
(“55AQUAJET OES and AES SERIES” ONLY):
The Aquajet OES and AES Series pumps were designed specifically for the RV aftermarket and, as a result, should be
compatible with the existing electrical wiring for most RVs. Because these pumps use a lower amperage motor than the
Aquajet ORV and ARV Series, installation is generally simplified. Often times, installation is as simple as removing the
wirenuts connecting the existing water pump and then reconnecting the existing wiring (keeping careful track of polarity) to
the Aquajet pump.
Before installation, however, you should insure that your particular RV does not require any electrical modifications to run the
Aquajet OES/AES, as follows:
1. Determine whether or not your existing wiring can supply 6.5 Amps to the Aquajet ES without generating an excessive
voltage drop or overloading any control component. You should check specifically for three (3) things:
a. Determine whether your RV is currently using an Intellitec pump controller. The Aquajet ES Series is compatible
with most common rated versions (7 Amp, 10 Amp, 15 Amp). However, if you have either a 3 Amp or non-rated
controller, you should procure a 40 Amp rated relay to augment your existing controller. These 40 Amp relays are
available through local automotive stores or through Remco directly (P/N 20-267-6040-REM). If necessary, refer to
Figure 8, page 6 for additional information.
b. Check your RV Owner’s Manual for the recommended fuse rating for the pump branch circuit. If your
recommended rating is rated 10 Amps or more, you can proceed directly with the electrical installation. If your
recommended rating is less than 10 Amps, you should procure a 30 Amp rated relay as referenced above.
If necessary, please refer to Figures 1 and 2, page 4 for additional wiring instructions.
c. If there are two (2) or more switches in your RV that independently control your pump, you may experience
excessive voltage drops in your existing circuitry. Using voltmeter, test voltage at the pump with the pump running
(refer to Figure 1, page 4). With either a fully charged battery or a running generator, you should be getting at least
11 volts at the pump. If not, you should procure a 30 Amp rated relay as referenced above.
2. Determine the optimal location for the Aquajet pump. If possible, plan to position the Aquajet pump horizontally, with
its rubber feet resting on a “floor-like” surface rather than mounted on a wall. Never mount the pump in an area where
gasoline vapors are present, as the motor and heatsink of the speed-controller may get hot (up to 200 F) after extended
running. Locate the Aquajet pump at least one inch away from any wall surface. In most cases, you’ll be able to mount
the Aquajet pump very close to where the old pump was located.
3. Survey the existing plumbing and identify the suction line (i.e. the line going from the water holding tank to the pump).
For the quietest possible operation of the Aquajet pump, you should try to isolate the pump mechanically from your
RV’s typically hard Polybutylene or PEX tubing. If your RV is currently plumbed with soft-walled, reinforced hose (see
Figure 5, page 5), then your system should be perfectly suicient as is. By installing a piece of IAPMO approved cold
water hose (such as ‘Accuflex’ Series 136) between the pump outlet port and your RV’s hard plumbing, you will achieve
the quietest possible pump operation. Remco also oers, as an optional accessory, a 39” long pre-assembled hose with
fittings.
(Remco product number 25-174) that will adapt directly to the Aquajet pump and your existing plumbing. Please refer to
Figures 6 and 7, page 5-6.
Installation
1. Using Voltmeter, determine polarity of the wiring to the existing pump(s). Unfortunately, there is no standardized
color scheme for RV wiring (most RVs, however, seem to use red for the positive lead and black for the negative lead).
Regardless of your specific configuration, positive voltage (12VDC) must be connected to the RED (fused) leadwire of
the Aquajet pump. Reversing this polarity will instantly blow the in-line fuse and may permanently damage the controller.
Mark the positive (hot) RV wire with a piece of tape.
2. Turn power “o” to existing pump(s).
3. Open a faucet, bleed o all existing pressure, then close the faucet again.
4. Disconnect the main power to the pump (either at battery or fuse panel).
5. Remove the wire nuts from the leads to the old pump.
6. Steps 1 and 2 of the earlier ‘Installation Planning’ section should have determined the applicable wiring method. As
appropriate, wire the Aquajet pump as per Figures 1, 2, 3, 4 or 8, pages 4-6.
7. Connect outlet adapters
a. [For old pump outlets connected to hose, as in Figure 5, page 5] Insert O-ringed end of (Qest) threaded adapter
into outlet port (marked with arrow pointing away from pump) of the Aquajet pump. Lock fitting in place by pushing
down retainer slide.
b. For old pump outlets directly connected to hard tubing, as in Figure 6, page 5]. Insert the O-ringed elbow fitting
of the Accuflex hose adapter (sold separately) into the outlet port of the Aquajet pump. Lock fitting in place by
pushing down retainer.
8. Connect inlet adapters
a. [If the Aquajet pump is to be directly plumbed to the existing inlet filter/fitting, as in Figures 5 and 6, page 5]. Insert
the O-ringed end of threaded adapter into the pump’s inlet port (look for arrow pointing towards the center of the
pumphead). Lock fitting in place by pushing down retainer slide.
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