Instruction Manual

TQ Series Instruction Manual
Please read all instructions carefully before installing your new systems, as failures caused by
incorrect installation or operation are not covered by the warranty.
I. Product
The TQ series are designed for the pumping of non-aggressive water, or water not containing solid
particles.
II. Operating conditions:
1. Ambient temp. : Max. +104ºF (40ºC)
2. Liquid temp. : +39ºF(4ºC) ~ +104ºF(40ºC)Max.
3. System pressure: Max. 120 PSI
4. Relative humidity: Max. 85%(RH)
III. Installation
1.The pump foundation should be rigid enough
to absorb any vibration from the motor, and
the pump should be securely bolted to the
foundation.
2. It is recommended that the plumber/installer
provides an adequate draining system to avoid
damage in case of leakage, particularly when
installed indoors. When it is installed outside, it
should be covered by a weather-proof
housing, well ventilated to allow motor heat to
escape.
3. Connect the suction pipe to the side and
discharge pipe on the top.( See Fig 1 )
4. When it is installed with water heater, a check
valve should be installed between pump
(discharge) pipeline and water heater (suction)
to avoid high-pressure steam backflow.
5. It is required to shut off the pump when the
liquid source is unavailable; although it has the
dry run cut off function.
6. For TQ1500/2200/3700, please cut out the
center of the rubber gasket inside the inlet and
outlet flanges as it will block the water flow.(
See Fig 2 )
7. Regular maintenance requires to open the
prime cover in order to access the check
valve. DO NOT apply any bonded material
(such as silicon, glue etc) to seal the chamber
cover ( See Fig 3).
Fig. 2
Fig. 1
Fig. 3
Suction
Discharge Flange Bolt Torque :
40~60 in-lb
40
in-lb
II. OPERATING CONDITIONS:
1. Ambient temp: Max. +104ºF (40ºC)
2. Liquid temp: +39ºF(4ºC)~+104ºF(40ºC) Max.
3. System pressure: Max. 120 PSI
4. Relative humidity: Max. 85%(RH)
III. INSTALLATION
1. The pump foundation should be rigid enough to
absorb any vibration from the motor, and the pump
should be securely bolted to the foundation.
2. It is recommended that the installer provides an
adequate draining system to avoid damage in case
of leakage, particularly when installed indoors. When
it is installed outside, it should be covered by a
weather-proof housing, well ventilated to allow motor
heat to escape.
3. Connect the suction pipe to the side and discharge
pipe on the top.( See Fig 1 )
4. When it is installed with water heater, a check valve
should be installed between pump (discharge)
pipeline and water heater (suction) to avoid high-
pressure steam backow.
5. It is required to shut o the pump when the liquid
source is unavailable; although it has the dry run cut
o function.
6. Regular maintenance requires to open the prime
cover in order to access the check valve.
DO NOT apply any bonded material (such as silicon,
glue etc) to seal the chamber cover ( See Fig 2).
Please read all instructions carefully before installing your new DDP-20, as failures caused by
incorrect installation or operation are not covered by the warranty.
I. PRODUCT
The DDP-20 is designed for the pumping of non–aggressive water,
or water not containing solid particles.
4
INSTRUCTIONS
Discharge
Fig. 1Fig. 1
Fig. 2Fig. 2
Flange Bolt Torque:
40~60 in-lb
40 in-lb