Davey XF Series, Installation And Operating Instructions Manual

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4. Prime should establish almost immediately with a
strong flow of water, however, in some installations
it may be necessary to repeat the above operation
to remove all air from the system.
WARNING:
DO NOT RUN DRY.
DO NOT RUN WITH LOSS OF PRIME.
DO NOT PUMP WATER CONTAINING
ABRASIVE MATERIALS.
SPECIAL MODELS
XF models fitted with “THERMOTECTION”
XF92F, XF171F, XF221F, XF192F, XF92S, XF171S,
XF221S AND XF192S
Special models of XF pumps are supplied with a
unique device (Thermotection) to automatically
stop the pump should the water in the casing
reach 85°C. This condition may occur when a fully
primed pump is operated without being allowed to
discharge water (i.e. closed head operation). Twin
impeller models also have high grade 316 stainless
steel casings.
CAUTION:
Thermotection will automatically
restart the pump when the water
temperature drops below 65° ± C 5°C.
XF models fitted with Silicon Carbide Seals
XF92B, XF171B, XF221B and XF192B
XF92S, XF171S, XF221S and XF192S
These models are fitted with special hard face
silicon carbide mechanical seals to allow them to
better handle corrosive and abrasive water. Twin
impeller models also have high grade 316 stainless
steel casings.
DO NOT RUN DRY
WARNING: If these models are operated
without water the mechanical seals will
emit a high pitched noise. Continued
operation without water may result in
damage to the seal chamber.
XF model with Chemical Resistant Pump End
XF171D
This model is fitted with pump components made
from a special plastic. This model is better suited
to pump certain chemical solutions such as those
used in “dog spa’s”. For more information on
acceptable chemicals contact your Davey dealer or
the Davey Customer Service Centre.
TROUBLE SHOOTING CHECK LIST
MOTOR OPERATING BUT NOT PUMPING:
1. Suction line and pump body not filled with water.
2. Leaking foot valve.
3. Air leaks in suction lines or suction pipe not
under water.
4. Air trapped in suction lines (also possible with
flooded suction) due to uneven rise in piping
(eliminate humps and hollows).
5. No water at source or water level too low.
6. Valve on suction or delivery lines closed.
MOTOR NOT RUNNING:
1. Power not connected.
2. Supply voltage too low.
3. Overload tripped.
4. Motor not free to turn e.g. a blocked impeller.
5. Internal motor fault.
*NOTE: For protection, the Davey pump
motor is fitted with an automatic reset
thermal overload, constant tripping of
this overload indicates a problem e.g. low
voltage at pump, excessive temperature
(above 50°C) in pump enclosure.
Warning: Automatic reset thermal
overloads will allow the pump to restart
without warning. Always disconnect the
pump motor from the electrical supply
before maintenance or repairs.
WARNING: When servicing or
attending pump, always ensure power
is switched off and lead unplugged.
Electrical connections should be
serviced only by qualified persons.
Care should also be taken when servicing
or disassembling pump to avoid possible
injury from hot pressurised water. Unplug
pump, relieve pressure by opening a tap
on the discharge side of the pump and
allow any hot water in the pump to cool
before attempting to dismantle.
IMPORTANT: DO NOT USE petroleum
based fluids or solvents (e.g. Oils,
Kerosene, Turpentine, Thinners, etc)
on the plastic pump components or
seal components.
WARNING: Do not use hydrocarbon
based or hydrocarbon propelled
sprays around the electrical
components of this pump.