Honeywell HM600XROF1/U Owner's manual

REVERSE OSMOSIS FILTRATION SYSTEM
HM600XROF1/U
• Safety Guides
• Installation
• Operation
• Maintenance
Printed in U.S.A. 7312212 (Rev. B 10/2014)
M35375
69-2379EF-02

2
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Reverse Osmosis Filtration System . . . . . . . . . . 3
Parts Included. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Tools Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Other Requirements . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . 3
RO System Assembly Installation. . . . . . . . . . . . 4
Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
RO System. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance Parts . . . . . . . . . . . . . . . . . . . . . . . 9
SPECIFIC A TIONS
Specifications listed are based on average filter life of one year (one operating
season for the steam humidifier).
Water Hardness 0-25 grains per gallon (gpg)
Water Pressure 30-120 pounds per square inch (psi)
Water Temperature 40°F - 100°F
(only use on cold water supply)
Weight (RO System with water) 7 lbs.
DIMENSIONS
11-3/8” 3-1/2”
16”
FIG. 1

3
REVERSE OSMOSIS FILTRATION SYSTEM
This Reverse Osmosis (RO) filtration system
removes dissolved solids and organic matter from
water by passing it through a membrane which
separates and flushes minerals and impurities
from the water.
Install this system upstream of the steam
humidifier’s water inlet. It is recommended that
the RO system’s filters be replaced at least once
per year to ensure optimal humidifier
performance.
PARTS INCLUDED
• RO System Assembly
(Model HM600XROF1/U)
– RO manifold assembly
– Supply tubing
(one 20 ft. long, 1/4” dia. white tube)
– Adapter elbow (3/8” x 1/4”)
– Drain line
(one 6 ft. long,1/4” dia. red tube)
– Mounting screws and washers
– Plug Fitting
• Water Filters
– #1 - Sediment filter
– #2 - Reverse osmosis filter
– #3 - Staging tank
TOOLS NEEDED
• Crescent wrench
• Philips screwdriver
OTHER REQUIREMENTS
• If the RO filtration system or the humidifier is installed in finished space or above ceilings, it is required
to install a water drip pan with a shutoff sensor under all water connections.
See steam humidifier manual, Appendix C.
SAFETY GUIDELINES
• Read, understand and follow all steps, guides
and requirements before installing the Reverse
Osmosis (RO) filtration system.
• All water connections must comply with local
and state plumbing and sanitation codes.
Reference, understand and comply with all
governing codes before installing the RO
filtration system.
• Do not install on hot water supply. Only use
cold water supply.
• Do not install outside or in unconditioned space
where there is potential for the water system to
freeze.

4
RO SYSTEM ASSEMBLY INSTALLATION
1. Choose a location for the RO system
assembly capable of holding up to 7 lbs.
2. Mark screw/washer location 9 inches apart.
3. Fasten screws and hanger washers.
– Sheet metal install – use sheet metal
screws (not provided).
– Wood stud install – use provided wood
screws and hanger washers.
4. Hang the RO system assembly on the
hanger washers.
5. Connect Filter Assembly top cover.
6. Connect three filter cartridges in the order
below by turning cartridge to the right,
ensuring thread is properly engaged and
seal is tight.
• Align #3 staging tank with RO system
assembly connection #3.
• Align #2 RO filter with RO system
assembly connection #2.
• Align #1 sediment filter with RO system
assembly connection #1.
FIG. 2
9”
NOTE: Be sure to allow a minimum space
of 1-1/2" under the system for removing
and replacing the filters.
Hanger
Washer
(2)
Screw
(2)
Top Cover
#3
Staging Tank
#2
RO Filter
#1
Sediment Filter
(level)
M35398

5
PLUMBING
• Cut 1/4” dia. tubing lines to fit your installation.
Ensure all cuts are evenly made with no nicks,
scratches or rough spots on the tube end.
• Longer tubing lengths – nylon or copper – may
also be used (not provided). Ends of tubing
must be round and free of burrs and scratches
Tubing Collar O-Ring
to seal properly.
• Install 3/8” x 1/4” adapter elbow into blue outlet
Tube Fully Engaged with Fitting FIG. 4
port.
• Verify that the plug is in place in the yellow port
on the base of the RO System.
• Locate the drain line (1/4” dia. red tube). Install
one end of the line into the elbow that is pre-
installed in the red port on the RO system.
Connect the other end of the line to a drain.
• Push tubing completely into applicable fitting by
pushing past initial resistance and then applying
light pulling force to ensure a tight fit.
– To remove tube from connection, depress
collar and pull tubing.
Collar (depress to
remove tubing)
Tubing
FIG. 5
• Water tube connections to the water supply,
filter and steam humidifier must be checked for
leaks after installation and a short period of
operation.
1/4 Inch
White Tubing
3/8” x 1/4”
Adapter Elbow
Cold Water
Supply
1/4 Inch
White Tubing
Drain Points for Reject Water
Follow local codes for proper installation
Refer to additional drain requirements in steam
humidifier manual when coupling RO drain and
humidifier drain
Standpipe
Sump
Laundry
Tub
Floor
Drain
air gap
air
gap
air
gap air
gap
RO System
(HM600XROF1/U)
#1 #2 #3
Shutoff
Control Valve
1/4 Inch
Red Tubing
Steam Humidifier
M35405
Plug Fitting
(Factory Installed)
Push-in
Elbow Fitting
Elbow with
Flow Control
(Factory Installed)

6
OPER A TION
RO System Assembly
The RO System Assembly directs the flow of
water into the filters in numeric order, and out to
the steam humidifier. A built-in backflow
prevention valve prevents the backward flow of
water from the storage tank. The shutoff/check
valve provided with the steam humidifier must
still be installed between the RO system and the
steam humidifier.
#1 Sediment Filter
Cold water enters the sediment filter, reducing
chlorine, sand, silt, dirt and other sediment. This
filters the feed water before entering the RO filter.
#2 Reverse Osmosis (RO) Cartridge
Filtered water enters the RO filter where dis-
solved minerals are removed, effectively ‘soften-
ing’ the hardness of the water. This reduces the
amount of solid mineral (scale/sediment) fallout
inside the steam humidifier’s tank. Reducing the
amount of scale and sediment increases the time
between manual cleanings of the steam
humidifier.
#3 Staging Tank Canister
After leaving the storage tank, but before going to
the steam humidifier, water enters the #3 staging
tank canister. This canister holds the initial water
that enters steam humidifier when the solenoid fill
valve opens.
NOTE: It is normal to hear the RO System
operating the first few days after the
initial installation. This will dissipate as
air is purged from the system.

7
MAINTEN ANCE
Replacement Steps - Water Filters
• It is recommended that the #1 sediment filter
and #2 RO filter be replaced at least once per
season or as needed.
• Do not replace the #3 staging tank. At the end
of the humidification season, unscrew the #3
filter and empty any remaining water.
• When installing new filters, install #2 RO filter
first, followed by the #1 sediment filter.
NOTE: Periodically check the flow control to be
sure the small hole through it is clean
and unrestricted. If the flow control
requires service, remove and replace the
cylindrical plastic flow control that is
inserted into the elbow connector. If the
flow control remains in the manifold
when the elbow connector is removed,
you will need to remove the drain ports
collar and O-ring to retrieve it.
#1
Sediment Filter
Replace
Replace
Remove,
empty and
reconnect
#3
Staging Tank
#2
RO Filter
Turn cartridges in the direction of
the arrow to remove. Turn them
in the opposite direction to install.
FIG. 6
NOTE: Refer to the steam humidifer’s manual for
more detailed maintenance steps.

8
TROUBLESHOOTING
The following table refers to the steam humidifier’s fault detection feature.
Number of
“Service” red
light
blinks
Description Possible Cause Corrective Action
2 Water level sensors
failed to detect tank
water
Scaling on the sensor Replace #1 sediment filter and
#2 RO filter. See steam
humidifier manual
troubleshooting section for
specific humidifier steps
3 Failed to fill steam
humidifier tank
Expired #1 and #2 water
filters
Missing flow control in drain
line
Replace flow control
4 Heating element
overheated
Scaling on element See steam humidifier manual
for cleaning steps
6 Water overflow
sensed in
humidifier tank
Heavy sediment in humidifier
tank
13 Tank failed to drain
Blinking “Cleaning
required” light on
steam humidifier
Continual water flow
to drain
Check valve or automatic
shutoff assembly plugged or
parts worn
Replace RO system

9
MAINTENANCE PARTS
Key
No. Part Number Description
150046083-001 One #1 sediment filter
250046084-001 One #2 reverse osmosis (RO) filter
350046089-001 One #3 staging tank
450046086-001 Filter kit, including one #1 sediment filter,
one #2 RO filter, and one flow control
43
21
FIG. 7

Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Ltd
705 Montrichard Avenue
Saint-Jean-sur-Richelieu, Québec
J2X 5K8
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© 2014 Honeywell International Inc.
69-2379EF—02 M.S. Rev. 10-14
Printed in United States