During excavation an underground cable was damaged, the cable had no markers, no one has claimed ownership of the cable as of yet.
I believe the cable is very old and already decommissioned, the client want us to perform a test weather the cable is connected somewhere or not and trace its...
Hi, I am working on a project where we have to erect a steel structure for capacitor banks, I need to calculate weight of each part of steel structure for erection, Weight of each piece needs to be put on lifting certificate and calculate safe working load.
I tried looking online but can't get...
@LittleInch
it's not the best written manual I've ever seen... ( its the Worst Written manual i have seen so far or the Weirdest panel)
I have Tried as you mentioned the pump works now in automatic mode but the pumps run for 1 min almost and then stop automatically , no idea why
i actually...
@LittleInch
First the Setting for the Dip Switches are as following ,
Dip Switch - 1 : OFF
Dip Switch - 2 : ON
Dip Switch - 3 : OFF
Dip Switch - 4 : OFF
Dip Switch - 5 : ON
Dip Switch - 6 : OFF
Dip Switch - 7 : OFF
Dip Switch - 8 : OFF
For the Operation at the i want to operate the pumps...
@LittleInch
actually the Pumps Came Along with the Panel from the manufacture ,
Please Check the Attachment , i have already attached the Pump Control Panel Datasheet which includes all the modes and wiring diagram
We have Installed 6 Centrifugal Exhaust fans for Multi Purposes ( Toilets Ventilation , Kitchen Hood Exhaust , Public area Exhaust ) .
we have installed dampers on each branch in the ducting system , but now the Consultant is asking us to install the Volume damper on the roof near the exhaust...
HI,
Dear All ,
I have bough Vertical Multistage pumps 3/phase ( 1 stand by & 1 Operation ) with a Control Panel ( Smart EVO 2 ) ,
i have done the following steps to run the pump no.2 ( since Pump no.1 in on Standby ) with an on/off Float Switch in emptying/Auto mode :
First Step - (...
Deal All ,
The Highest point of system is only 6 meter's higher than the makeup water pump set , its already located on roof top ,
Can i just simply connect the Makeup Like to the Main Line of Chilled Water return , or should i make the Connection into the Air Separator ,
The Air separator...
Dear MFJewell
so the purpose of the Chilled water makeup pump is to fill the system only , so select the pump to fill the system at the top most point ??
i think the Pressurization unit is same as the makeup water pumps with pressure vessel ?? or i am mistaken ? so if there a leak in the...
Hello Everyone ,
I have a Closed loop chilled water system , its a Primary (constant Speed) and (Secondary variable Speed) System , all the Pumps and the Chilled are located at the Roof Top and the Loads(ahus,fcu) at Ground level .
The Closed loop System Should be Pressurized at a Specific...
the Thing is that the Drawing is making me more confuse regarding the location of theses valves , why only these particular location .
Please review the Attachment http://files.engineering.com/getfile.aspx?folder=1afb78c4-bf66-4a4e-ba82-d71e5d32a99a&file=01-M4-WS-109.pdf
Dear All ,
I Am little confused between these two valves , Pressure Regulating Valve and Pressure Reducing Valve .
as per study i think both are same but why different names , Please review the Attached Drawing , the Pressure Reducing Valve is been only
installed to the hot water supply...
What is the function of pressurization unit in chilled water system? i have a Primary , secondary pumping chiller system ,
Why we need a Pressurization unit with makeup water in a closed loop chilled water system , what should be the location of PU in a Complete Closed loop
HI,
Dear all ,
the problem is that even as a contractor mechanical engineer , i do all the design and calculation for the consultant , and propose to him , plus i have searched online as well , the only way i found was go back to basics .
HI,
I am working on a hotel project ,
in which we have steam and a sauna room , when designing i didn't provide any extraction duct for the rooms but the operator requested to have a extraction in the steam room , but i don't get the point why do we need extraction in the steam and sauna...
HI,
I have chilled water piping , Water supply piping on roof top , and to be economical i am using a steel I beam and L shape -MS steel angle which will be used for the piping support and supported by to stands on each end . Either i can go back to basics and start calculating the I beam...
HI ,
Dear All ,
I have always seen that the Electric water heater is installed indoor . What if we place the Circulation pumps and Electric water heater out door into the direct sun . what will be the effects of this , or is it highly recommend that the Electric water heater should be placed...
Hi ,
Quick Question . i have different piping for waste , soil and rain ,
what if i connect the rain pipe to the waste pipe , is it OK by plumbing code , or there is a solid reason that both pipes cannot be connected ,
Feed me with your knowledge ,
Thanks ,
note : i have a rain pipe...
no i don't have individual pump , i have main primary and secondary pump on roof top only , but its a closed loop piping so supply is connected to the return at the very end . is there any other valves or joints required in the risers ??
