Rainbow Pool Products OTB450A User manual

ONGA TANKBUDDY SUBMERSIBLE PUMP
Code Description
kw v
OTB450A TankBuddy-Onga sump pump 0.65 230

TECHNICAL INFORMATION
Pump Discharge Connection: 1 1/4” BSPF Thread
Supplied Fitting: 1 1/4” Hose Tail
Power Supply: 230V - 1Ph - 50Hz
Voltage Limits: 207V - 253V (230V ± 10%)
Maximum Flow Rate: 100 lpm
Maximum Head: 32m
Water Temperature Range: 1°C – 40°C
Power Consumption: 800W
FLA (Full load amps): 3.7A
Maximum Submergence: 7m
APPLICATION
TankBuddy is designed to provide water from your tank to your garden or house.
Because it is submerged, TankBuddy operates silently, and takes up no space at ground level.
TankBuddy is a multistage pump, it provides more pressure than most submersible pumps,
and adequate pressure for all but the largest homes.
TankBuddy is available in 2 versions. OTB450A is the all in one solution for automatic pump
operation and OTB450W offers versatility for connection to various Onga pump controllers
such as WaterSwitch and PressControl.

INSTALLATION
TankBuddy is electrically connected. Ensure that it is switched off and
unplugged from the electrical supply during installation and any subsequent
service work.
These instructions are a guide only. Should you the installer or owner of the
product be unfamiliar with the correct installation or operation of this product
you should contact suitably qualifed plumbing and/or electrical personnel for
advice.
Do not lift, move, or carry this pump by the electrical or float switch cables
TankBuddy is designed to be used with clean water in a residential
application. Do not use it with alternative fluids, specifically abrasive,
aggressive, corrosive or explosive fluids. Do not install or operate your
TankBuddy in an explosive enviroment or near combustible matter. Do not
operate or use in pools where people can be immersed in the water.
Freezing conditions will damage the unit, as water expands when it
freezes. Ensure that TankBuddy is located so that it is not prone to
freezing, or ensure that the product is disconnected and dried of water
during cold conditions.
This pump is not intended for use by young children or infirm persons
without supervision. Young children should be supervised to ensure that
they do not play with the pump.
Pre-Installation
Inspect your TankBuddy for shipping damage. Report any damage to your Pentair Water
dealer. Read the Owner’s Manual fully that was shipped with the pump to ensure correct
pump installation (this document). For rainwater installations Pentair Water recommends that
a first flush diverter and suitable strainers are installed.
Electrical
The OTB450A is supplied with a standard Australian 10 Amp plug and cord. To connect to a
power supply insert the plug into the suitable socket outlet. The socket outlet shall be in a dry
and fl ood free location. The OTB450W is supplied with a special Onga IEC connection for
use in conjunction with recommended Onga controllers and power cords.

Pump Installation
Securely connect a stainless steel wire cable or a rope to the handle of the pump ensuring
that the wire/cable exceeds the safe working load of 10kg. If you are using a hard discharge
pipe, thread this into the outlet of the pump housing. If you are using a flexible discharge
hose, use hose clamps to secure this to the fitting provided. Lower the pump into the tank
using the rope or wire cable. Lower the pump onto a hard level surface that is elevated from
the base of the tank. This is to keep the pump inlet above sediments in the bottom of the tank.
OTB450A Model
Ensure that the float switch can move freely within the tank – incorrect operation and pump
failure may occur if the float switch becomes trapped. Connect the power plug to a suitable
outlet. The pump will operate when the float is higher than level, and stop operating when
the pump float is in the low position. If the pump must be removed from the tank, use the
lifting rope or lifting wire cable to lift it. Do not use the power cable or the float switch to lift the
pump. Do not fix the automatic float switch to the “ON” position as pump failure may occur
(Refer to Trouble Shooting section). Your TankBuddy is designed to operate submerged in
water.
Fittings and Accessories
Ensure that you have all required fittings and accessories prior to installing your TankBuddy:
Threadseal tape (hard discharge pipe installations)•
Hose clamps (flexible discharge hose installations)•
Cable ties•
A larger diameter hose or pipe will offer less resistance to flow, and so give better
performance.
Hazardous voltage.
Can shock, burn, or
cause death.
WARNING
Pentair Water advises against the use of extension
cords due to their lack of protection against water and
due to potential voltage drop. Supply voltage that is
outside limits specified in the Technical Information
section can cause motor to overheat, leading to
overload tripping, reduced component life or serious
pump damage and voids warranty.
The pump must be supplied from a circuit protected
by a residual current device – RCD (also known as
an Electrical Leakage Circuit breaker – ELCB) with a
maximum rated residual current of 30mA.

OPERATION CHECK
1. Connect the pump to a suitable power outlet.
2. Ensure that the pump is completely submerged. If it is not, fill the tank with water from
another source, until the pump is completely submerged.
3. The float switch will rise, and the pump will start, and empty the tank. As the tank empties,
the float switch will fall, and stop the pump.
4. Check that there is adequate pressure and flow from the discharge point. If there are any
variations to these outcomes, please see the trouble shooting section on the following
page.
OPERATION
The pump operator or owner must be provided with this owner’s manual.
This must be read before operation, and followed during operation.
Do not run the TankBuddy dry, or with the motor exposed (i.e. out of the
water) for long periods. This will harm the pumps seal, and overheat the
motor.
SERVICE & MAINTENANCE
To avoid dangerous or fatal electrical shock, turn OFF power to pump and
remove plug from outlet before attending the pump.
There are no user serviceable electrical parts in the pump; any repairs shall
be done by qualified service personnel only.
RCD tripping indicates an electrical problem. If RCD trips and will not
reset have a qualified electrician inspect and repair electrical system and/or
pump.
The power supply cord has a type ‘Y’ attachment and if service is required
to the power cord, it must be replaced with the specialised power cord
assembly by a Pentair Water service agent or similarly qualified personnel
in order to avoid a hazard.
Always use original Pentair Water service parts. Warranty is void if
unauthorised modifications are made to any component.
Under normal conditions, your TankBuddy submersible pump does not require any
maintenance.
In order to avoid possible failures, it is advisable to check periodically the pressure and
current draw. A decrease in pressure is a sympton of pump wear caused by grit or silt in the
water. An increase in current draw is a sympton of abnormal mechanical friction in the pump
or motor, caused by solid material being lodged within the pump.

Symptom Cause Remedy
Pump doesn’t start Float switch isn’t in the
‘on’ position
Wait until there is more water in
the tank to start the pump
Not enough water in
the tank to get the float
above level
Float is caught on
something, and can’t rise
above level
Ensure that the float can move
freely
No power supply Ensure that the socket outlet
where the pump is connected to is
switched on
Check fuses and/or circuit
breakers and RCD
Pump is blocked Disconnect the pump from the
power outlet, and check the pump
housing and discharge for foreign
matter.
No water from pump Blockages in the pump
or discharge
Disconnect the pump from the
power outlet, and check the pump
housing and discharge for foreign
matter
Excessive lift Ensure that the height that you
are trying to lift water is within the
pump’s capacity. A larger pump
may be required.
Not enough water in the
tank to pump
Wait until there is more water in
the tank. Ensure that float switch
is operating freely
Pump will not stop, even
though there is little water
in the tank.
Float switch is trapped in
the “up” position
Ensure that the float switch can
operate freely
Float switch is fused “on” Contact and Authorised Pentair
Water Service Agent to replace
Float Switch
TROUBLE SHOOTING

Symptom Cause Remedy
Pump runs intermittently:
Thermal protection inside
the pump is tripping and
resetting
The pump is not completely
submerged
Ensure pump is covered with water
Water temperature is too
high
Ensure that water temperature
limits are observed.
Pump runs intermittently When the pump shuts off,
water in the discharge line
is running back into the
tank, lifting the float switch.
Fit a non-return valve at the pump
discharge so that water cannot
return to the tank