Herrmidicool
I n s t a l l a t i o n , O p e r a t i o n & M a i n t e n a n c e M a n u a l
7
www.trioniaq.com
VIII. START-UP
After all checklist items are completed (and the total
installation is complete) the Herrmidicool system is ready to
start. Refer back to the Start-Up Checklist prior to Start-Up
below.
IMPORTANT:
Before scheduling factory start-up, please have any issues
relating to the “Check List” resolved. If additional trips are
required, additional start-up costs will be incurred!
1. Blow out air and water lines to the control cabinet.
2. Set all controls to their lowest setting (control and limit if
applicable). This allows the system to be turned “on” without
the atomization process being started.
3. Once the units get the signal to run and unit is turned
“on,” the air solenoid will energize within 5 seconds. Once
the air pressure switch detects sufficient air pressure, the
water solenoid will open.
4. With individual air and water valves at atomizing heads
closed, blow out the air and water lines through the hose
bibs.
5. A factory-trained technician will complete the balance of
the start-up.
If used, blowdown tanks, air vent check valve assemblies,
and balancing air regulators are installed as shown on the
installation layout drawing provided with this manual.
Call your local TRION/HERRMIDIFIER representative to
schedule a trouble-free start-up. Minimum two week notice
is required.
IX. ATOMIZING HEAD OPERATION
The HERRMIDIFIER atomizing heads operate with the
water pressure higher than the air pressure. As air enters the
atomizing head, it flows in a centrifugal motion inside the air
nozzle and outside of the water nozzle. As the water enters
the atomizing head, it creates pressure against the diaphragm
and compresses the spring located on the opposite side of
the diaphragm. The motion of the diaphragm pulls the water
seat away from the bottom of the water nozzle allowing water
to flow through the water nozzle. As the water exits the water
nozzle, it become atomized by the compresses air inside the
air nozzle and exits the atomizing head as a fine spray.
X. PRESSURE SETTINGS
IMPORTANT: The air and water pressures to the atomizing
head should only be adjusted when the humidifier is at full
output. In other words, when the modulating water valve is
100% open the controls are calling for maximum capacity.
Do not attempt to adjust the air and water pressure settings
at any other time. The instructions below assume that the
atomizing heads are installed at the same elevation as the
water control section. Adjustment from this standard must be
made to compensate for any elevation differences between
the water control section and the atomizing head manifold.
1. Set the air pressure at 30 psig.
2. Set the water pressure at 33-38 psig according to the
atomizing head capacity as listed below:
a. 6 lb/hr. 34.5 psig
b. 8 lb/hr. 38 psig
c. 10 lb/hr. 33 psig
d. 12 lb/hr. 34.5 psig
e. 15 lb/hr. 37 psig
The water pressure settings listed above will allow the
atomizing heads to perform at their rated capacity (lb/hr.).
It may be desired to deviate slightly (1-2 psig) from the
standard settings in order to enhance performance. Slightly
lower water pressures will result in a finer atomized spray
(smaller droplet size). Be aware that any adjustments such
as this will also reduce the rated capacity of the heads. Use
caution accordingly.
XI. MAINTENANCE
• Air Compressor – follow manufacturer’s recommended
instructions.
• Atomizing Heads – clean dust and debris from outside of
heads as required. If raw water is used, we recommend
removing the atomizing nozzles and strainer screens once
a year for disassembly and cleaning. DO NOT use a wire or
other foreign object to clean nozzle as this could ruin orifice.
• Air & Water Lines – blow out once a year. Check joints for
leaks once a year.
• Strainers on air/water control sections should be cleaned
once a year.
• Sensors/transmitters should be checked once per year
• Solenoid valves should be checked once a year for proper
operation and closure.
XII. EXTENDED SHUTDOWN
After an extended shutdown, air and water lines should be
blown out prior to resuming normal operation
XIII. ATOMIZING HEAD ADJUSTMENT
The atomizing heads are factory adjusted and tested. Typically,
no adjustment is required unless the atomizing heads have
been disassembled for maintenance. Do not adjust individual
atomizing heads to reduce capacity or enhance performance.
This is done only by changing the operating pressures for the
entire system.
1. Turn the Herrmidicool System on to full output and check
that the air and water pressures are correct.
2. Remove the cap from the back of the atomizing head.
3. Using a screwdriver, slowly turn the spring tension nut
clockwise until the atomizing heads stops spraying.
4. Note the position of the spring tension nut.
5. Back the spring tension nut out two full turns
counterclockwise.
6. If head is not spraying at start of procedure, back out spring
tension nut until head starts to spray and then begin step 3.
