Davey MUKMOVA MANURE & TRASH PUMP - Manual (Page 2)

Single Phase
Three Phase
Davey recommend the use of overloads which also have the ability to detect “single phasing” or “dropped phase”
conditions in the power supply.
Three phase Mukmova models have been designed to allow for connection either
side of the Capacitor Cover (marked “A” in figure one) on the motor. (NOTE: Three
phase motors do not have capacitors fitted in the Capacitor Cover). This is achieved
by way of either of the two 19mm access holes (marked “B” in figure one). The
access holes are designed to accept most standard cable grommets. The unused
hole can be sealed by inserting the plug enclosed with the pump. To connect a three
phase Pressure Pump start by removing the Terminal Cover (“C”).
A short four core flex (“D”) is fitted from the motor terminals (“E”). This lead is
inserted through the blanking grommet (“F”).
Pressure switch or other control leads (“G”) can be fitted as well. Incoming power
(“H”) can be fitted through the preferred access hole, and terminated as shown in
Figure Three. A termination kit is available if required.
Insert the blanking grommet (“F”) into the capacitor cover (“A”). Fix the short lead
(“D”) into the path provided in the non-drive endshield and replace the terminal cover
(“C”).
IMPORTANT NOTE: THREE PHASE MODELS ONLY
When the unit is connected and operating the phase balance should be checked. This should be within 5%
variation. “Rolling” the leads may help to improve a small unbalance, but major phase unbalance will usually be
attributed to an input power unbalance. This must be addressed before the pump is used.
Suction Piping - As this pump does not have a fixed column, it may be used on a wide variety of collection pits without
modification. Furthermore, by using flexible suction pipe, the pit may be almost fully emptied.
The suction inlet to the pump is 2
1 /
2
” BSP female and for optimum performance, 2 1 /
2
” or larger smooth bore reinforced
suction hose should be used. Maximum suction lift of the pump should be limited to 6 metres (20 ft) and the length of
suction pipe should not exceed approximately 8 metres.
Before finalising wiring connections, check that motor rotates in direction of arrow (clockwise when shaft
is viewed from wiring connection end). To alter rotation, change any two power leads at motor terminals.
Power connections and wiring must be carried out by an Authorised Electrician.
A registered electrician is required to directly wire in the pump. EXTENSION LEADS MUST NOT BE USED.
The single phase 240/480V motor on this pump is fitted with an in-built 240V thermal overload switch located under the
terminal cover on the end of the motor. For 480V operation the terminal connections must be changed as per the wiring
diagram included in the capacitor housing. A 480V overload and fitment kit is supplied with the pump. This overload is
fitted into the endshield just above the terminal block.
The three phase 415V TEFC motor on this pump must have a contactor wired in which has correctly rated quick trip (M10)
thermal overloads, otherwise any failure will not be the responsibility of Davey.
Single phase units should be restricted to no more than 20 starts per hour.
Note: Minimum three phase voltage supply at the motor must not fall below 374 volts, otherwise motor
damage may result which is not claimable under Guarantee.