Homa H802, Original Instruction Manual

Page: 26 / 56

26 | EngliSH
3.3.1. Nameplate
1Ph
No. Description No. Description
1 Typ description 14 Motor type
2 Serial number 15 IE Marking
3 Impeller diameter 16 Frequency
4 Temperature of medium 17 Voltage
5 Immersion depth 18 Nominal current
6 Weight 19 Motor RPM
7 Hmax (delivery head max) 20 Power P1
8 Hmin (delivery head min) 21 Cos phi
9 Qmax (delivery volume max) 22 Insulation class
10 Standard 23 Power P2
11 Construction product test lab 24 Start condenser
12a Year type test 25 Operating condenser
12b Declaration of performance 26 Protection class
13 Build year 27 Operating class
28 Text field sales
3.3.2. Motor
The motor consists of an engine block and the engine
shaft with the impeller assembly. The circuit for power
supply is designed for the maximal mechanical perfor-
mance according to the characteristics or the nameplate
of the pump. The cable inlets as well as the circuit are
sealed resistant to jet water towards the pumped medi-
um. The shaft bearing is carried out by means of robust,
maintenance-free and permanently lubricated antifriction
bearings.
General motor nameplate data
Operating mode with submersed motor S1
Permitted medium temperature 35°C
Insulation class F
Protection class IP68
Cable length 20 m
Voltage 230V / 1Ph / 50Hz
3.3.3. Monitoring devices
Temperature sensor
The pump type is equipped with a temperature sensor set
in the motor windings.
In the standard version of ( 1Ph ) single phase motors,
the temperature sensors are connected internally in the
motor so that no special connection is necessary. After
cooling, the motor will restart automatically. The triggering
temperature of the sensors for standard version motors
is 130°C.
Checking direction of rotation
No check is required for single-handed motors, since
these always run in the correct direction.
Warning - rotating impeller!
Do not touch the rotating impeller or do not reach the
pump chamber through the pressure socket! Never
put your hands into the pump chamber or touch the
rotating parts in operating mode. Switch the machine
off and let the rotating parts come to gridlock before
carrying out maintenance work or repair work!
Furthermore it is possible to check the direction of ro-
tation with a ‘motor and phase rotation indicator’. This
measuring device is held towards the engine block of the
running pump from externally and shows the direction of
rotation by means of LED.
Automatic float switch (version...A)
Version with automatic float switch HOMA Nivomatik, AS
floater, 20 meter connection cable, switchgear and manu-
al-0-auto switch. The single phase pumps are furthermore
provided with integrated condensers and connector. The
three phase pumps are provided with a CEE reversing
plug for rotational direction
Motor cooling
Sufficient motor cooling is also provided for in snore op-
eration due to the water jacket with pressure connection
on top.
3.3.4. Pump Casing
The pump casing is available with different pressure
discharges, depending on the version and engine varia-
tion. This creates an optimal connection to the various
types of pipework.
Discharge:
•
H 802 : G 1“
• H 804 – H818 : G 1 ¼“
All pump casings (but not the type H816S) have a suction
sieve with spherical clearance of 0,1mm.
The type H816S has a sideways suction inlet G 1“.
3.3.5. Impeller
The impeller are fixed on the engine shaft, which powers
it. The impellers are open multi-blade impeller.
Spherical clearance: up to 1,5mm