4-1
4. Installation
4.1
Precautions for installation
Warning
When moving or installing the unit, never lift it in an unstable condition
or with any load applied to the pressure tank, pipes, or control panel.
Otherwise, the unit may fall, resulting in injury and/or damage.
Before lifting the unit, refer to the catalog, the external dimensions
drawing, or other documents to check the weight of the unit, and use an
appropriate lifting device of which rated load is over the the unit.
Otherwise, the unit may fall, resulting in injury and/or damage.
Caution
For the installation environment, follow the precautions described
below. Otherwise, it may lead to failures and/or other problems as well
as a shorter life of the units.
Caution
This water supply unit is designed for indoor use. For outdoor use,
install the outdoor hood, which is available as a special accessory.
Otherwise, it may lead to failures.
Caution
To suck up water from a lower position, use a water supply unit
designed for lifting operation.
Otherwise, discharge pressure may drop, thus leading to disruption of
water supply.
(1) Install the unit at a place that meets the following conditions:
· a place that meets the requirements in Section “3.1 Specifications of the water supply unit “;
· a place that is not exposed to the wind or rain;
· a dry, well-ventilated environment, which as free of dust or moisture as possible;
· a location where unauthorized persons cannot easily enter or operate the product;
· a location as close to the water source as possible so that the suction pipe can be short.; and
· a location where mainance can be conducted easily and abnormality can be readily coped with.
(2) Fix the water supply unit firmly on a level concrete foundation with anchor bolts.
(3) Be sure to provide a drain ditch around the water supply unit, and waterproof the floor.
(4) If the system could be exposed to the freezing temperature in winter, be sure to take measures to prevent
freezing in the pump room or prevent the pump, valves, piping, pressure transmitter, pressure tank, and
other devices from freezing. We can offer the special models designed to prevent freezing. Contact us.
(5) Use sound insulating materials for the door and walls of the pump room. Particularly when generated noise
may pose a problem, take necessary measures against the noise.
(6) If you need to lift the water supply unit (with motor output: up to 3.7 kW), attach four eyebolts as shown in
the following figure. Separately place an order for the eyebolts as they are optional.
When the motor output is 5.5 or 7.5 kW, there are lifting holes in the common base.
Place cushioning materials to prevent damage to the unit.
(7) If the unit is operated for a long time at low flow rate, a pressure relieving device might be necessary.
Please contact us.
*1) Eyebolt installation diagram
(Pump side)
*2) Eyebolt installation diagram
(Motor side)
Eyebolts
Nut
Weld nut
Fig. 4-1 For models with a motor output of up to 3.7 kW
