DECTRON
Dectron, Inc. March 2012
DSH/DSV/RSH/DBH/RBH Series Dehumidifier Owner’s Manual
Data subject to change without notice.
72
Installation Component Overview
1. Outdoor air filter & manual
damper
• Optional motorized damper actuator
• Seven-day time clock
2. Pool water isolation valves
(by others)
3. P-Trap and Condensate Drain
(by others)
• Must be installed and filled with
water
• Condensate can be returned to the
pool via the skimmer (consult
local codes)
• Failure to install the P-trap will cause
the drip pan to overflow and flood
areas beneath the DRY-O-TRON®.
• Optional side connection available
4. Water flow meter (by others)
5. Pool Water Connection
(by others)
• Water-circuit components must be
of non-corrosive material.
• Pool-water piping must be the same
size as the connection on the
DRY-O-TRON®.
• Increase the pipe size if the DRY-O-
TRON® and the by-pass (throttling)
valve are more than 10 feet apart.
6. Air Conditioning (OPTIONAL)
• Pipe must be same size as the
connection on the DRY-O-TRON®.
• Required supports are not shown, but
must be so arranged as to prevent
torques or axial or radial forces from
being applied to the unit tube stubs
or the condenser tube stubs.
Other code requirements may
also apply.
• Optional water-cooled or dry-
cooler heat rejection.
7. Pressure/Temperature Ports
(by others)
• Ideal for measuring pressure drop
across the water heater
• Remote mount sensors (Optional)
8. Flexible Duct Connection
(by others)
• For vibration isolation
• For attenuation of sound due to
vibration
• Required on any return, supply,
outdoor air, and exhaust connections
to the DRY-O-TRON®
9. Duct Heater (by others)
• Size to cover the pool-enclosure heat
losses and the outdoor-air load
• Optional unit-mounted electric, hot-
water, steam, gas boiler or furnace
• Controlled by the DRY-O-TRON®’s
microprocessor
10. Operator Panel
Mounted on the electrical panel door
• Optional remote mounting (by others)
11. Refrigerant Access Valves
• Service gauge connection
• Refrigerant charging access
• Upper valve is head pressure
• Lower valve is suction pressure
• Compressor oil-pressure port may
also be present.
12. Automatic Chemical Feeder
(by others)
• Must be located in the main pool
return line downstream of the DRY-O-
TRON® and all auxiliary equipment
to prevent corrosion and equipment
deterioration
13. Auxiliary Water Heater con-
trolled by the DRY-O-TRON®
(by others)
• Should be located downstream of
the DRY-O-TRON® and before the
automatic chemical feeder
NOTE: An auxiliary pool-water heater is
recommended for all installations.
NOTE: An auxiliary pool-water heater is
required for natatoriums with DRY-O-
TRON® units having more than 15%
makeup air or having the Economizer,
Intelligent Energy Saver, or EconoPurge
options.
NOTE: An auxiliary pool-water heater is
required for pools in which
(a) the water is exposed to
outdoor conditions (such as a
swim-through pool), or
(b) the water is kept at a higher
temperature than the room air, or
(c) uninsulated pool walls are
exposed to outdoor conditions.
14. Throttling Ball Valve (circuit
setter, by others)
• Install at lowest point in the discharge
line
• Adjust water flow until the outlet water
temperature is 12 to 20°F above the
inlet water temperature during water
heating.
15. Water Pressure Switch
(may be unit-mounted)
Inhibits water heating mode during
main filter backwash or in case of
insufficient water flow
16. By-Pass Valve (by others)
• Throttle to force water through the
DRY-O-TRON® when the
recommended secondary circulating
pump is not used
17. Secondary Circulating Pump
(by others)
• Must be suitable for pool water
• Secondary circulating pump selection
for an OPEN system and :
Δ DRY-O-TRON® flow rate
Δ Total pressure drop including:
DRY-O-TRON®, external piping,
valve pressure drop and elevation
difference between the pool water
surface and the DRY-O-TRON®
• Use dielectric couplings for water
pump connections
• Pump must stop during backwash
18. Water Pressure Switch
(by others)
• Stops the secondary circulating pump
Δ During main filter backwash
Δ In case of insufficient water flow in
the pool water filter loop
19. Main Filter Pump (by others)
• Usually sized for pool water filtration
and sanitation only
• CAUTION: Secondary circulating
pump is required if the main filter
pump cannot produce the additional
flow required by the DRY-O-TRON®
at the necessary pressure.
• Pumps controlled by timers: contact
factory for suggested piping detail.
INSTALLATION
To Next Page
Loading...
Need help?
General
