Hitecsa VERNE WPHA 091, Руководство пользователя

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IOM_WPHBA-WPHA_091a1201_207954_180610_EN
COMPACT HORIZONTAL PACKAGED WATER-TO-AIR UNITS
WPHBA / WPHA
INSTALLATION
Differential switch
We will use it instead of the flow switch or
together with it. Its function is the same as the flow switch’s one. Air pockets
may be generated after filling the circuit with water. We will have to make sure that there is no air to garanty that this
component will work properly: we will proceed to purging by loosening the nuts of the tubes (please see below, 1.).
The warranty will not cover any damages to the plate exchanger caused by air in the switch that would be responsible
for its malfunction.
INSTALLATION OF THE FLOW SWITCH AS AN OPTION
It is compulsory to mount the flow switch at the water outlet of the unit. The water flow shall be laminar to make sure
that the flow switch works properly: Install the flow switch on a straight section of the tube where there is no section change.
The distance to the switch shall be minimum 6 times the diameter (D) of the tube and at the outlet there shall be a distance
of minimum 3 times the diameter of the tube. No other component or accessory shall be installed on that tube. If you use
a flow switch from another supplier (not delivered by Hitecsa), refer to the instructions of the producer and respect the
dimensions as previously stated.
Bear in mind that the flow switch has a limited operation range due to the tube diameter. We will need to choose the
diameter of the tube where it will be installed depending on the flow of the unit.
VERNE
range
91 121 141 171 201 251 351 401 501 701 751 1001 1201
Water Connections (male gas thread) "
¾” 1 ¼”
Model of the supplied flow switch
- SF1RE SF1K
Recommended tube diameter
"
1" 1 ¼” 1 ½” 2" 3"
Minimum Flow Setting (Disconnection - Off)
m³/h 0,2 0,4 0,7 0,8 1,1 1,4 2,4 2,7 3,2 3,6 5 6 7,4
Nominal Flow Setting (Connection - On)
m³/h 0,6 0,7 0,9 1 1,3 1,6 2,6 2,9 3,5 4,3 5,5 7,6 8,7
Possible flow switch settings:
SF1RE models 091 - 251 SF1K models 351 - 1201
Tube Max. Q Min. setting Max. setting Tube Max. Q Min. setting Max. setting
ø m3/h Off (On) m3/h Off (On) m3/h ø m3/h Off (On) m3/h Off (On) m3/h
1" 3,6 0,2 (0,6) 1,0 (1,1) 1 3,6 0,6 (1,0) 2,0 (2,1)
1 1/4" 6 0,25 (0,9) 1,4 (1,6) 1 1/4" 6 0,8 (1,3) 2,8 (3,0)
1 1/2" 9 0,5 (1,2) 1,6 (2,2) 1 1/2" 9 1,1 (1,7) 3,7 (4,0)
2" 15 0,9 (2,3) 3,6 (4,1) 2" 15 2,2 (3,1) 5,7 (6,1)
2 1/2" 24 1,2 (3,1) 4,9 (5,5) 2 1/2" 24 2,7 (4,0) 6,5 (7,0)
3" 36 2,1 (4,9) 7,4 (8,2) 3" 36 4,3 (6,2) 10,7 (11,4)
Please contact Hitecsa for other possible flow options.
1. Loosen until water comes out. Then,
tighten the nuts again.