Pure ECDRR Humidifier Owners Manual

Pure ECDRR Humidifier Owners Manual
“Read and Save These Instructions”
Deionized, Demineralized, or Reverse Osmosis Water
“ECDDR” Series
Electric Humidifier
Installation Instructions
—————————————————
Operation and Maintenance Manual
PURE
Humidifier
Company
Our results are comforting
Form No: ECOM-08-08
1
Introduction
To the user of PURE Humidifier Co.’s
Electric Humidifiers
Table of Contents
Introduction
Internal Humidifier Features
Capacity & Electrical Specifications
Layout and Dimensions
Humidifier Layout
Mounting/Location
Wall Mounting Detail
Dispersion Method
Hose Kit Installation
Steam Piping Examples
Piping
Blower Pack
Start-Up Procedure
Maintenance Instructions & Wiring Notes
Trouble Shooting
Tool Requirements & Maintenance Notes
Exploded Parts Drawing
Parts List
We at PURE Humidifier Co. thank you for choosing one
of our quality products. PURE Humidifier Co. electric
series humidifiers are models of simplicity to install,
operate, and maintain.
However, they must be
maintained to provide maximum operating efficiency.
PLEASE READ AND FOLLOW ALL
INSTRUCTIONS CAREFULLY.
PROPER
OPERATION AND HUMIDITY CONTROL IS
POSSIBLE
ONLY
WITH
PROPER
INSTALLATION AND MAINTENANCE.
The “ECDDR” Series Humidifier is specifically designed
to operate with deionized, demineralized, or reverse
osmosis water. All components that will be in contact
with water are constructed of type 304 stainless steel,
incoloy, or corrosion resistant materials.
Use of mineralized (hard or soft) tap water will cause fill
valve failure and void that warranty. PURE Humidifier
Co.’s “EC” Series should be installed on applications that
require tap water.
1
1
2
3
4
5
6
7
8
9
10
11-12
13
14
15
16
17
18
Internal Features of the PURE Humidifier Co.
“ECDDR” Series
Electric Humidifier
High chloride content in feed water can cause chloride
stress cracking and chloride pitting in stainless
components. Chloride stress corrosion cracking (CSCC)
and chloride pitting of stainless steel components is not
covered by warranty. Do not use hydrochloric acid
descalers or bleach to clean the tank. Consult the
factory if you are unsure about which chemical descaler
to use.
To ensure proper installation of this product, it must be
installed by qualified HVAC and electrical contractors,
and must be in compliance with local, state, federal, and
governing codes. If installed improperly this product may
cause damage to property, severe personal injury, or
death as a result of electric shock, burns, and/or fire.
Steam Outlet
Connection
Over-Temperature
Switch
The PURE Humidifier Co. Warranty
Removable
Humidifier
Cover
PURE Humidifier Co. guarantees its products to be free
from defects in material and workmanship for a period of
one year from the date of shipment; provided the product
is properly installed, serviced, and put into the service for
which it was intended.
Removable
Humidifier
Reservoir
Float Ball
Water Valve
PURE Humidifier Co. is obligated under the terms of this
warranty to the repair or replacement of the defective
part(s), excluding any labor charges, or to refund the
purchase price at our option. PURE Humidifier Co.
assumes no obligation for incidental or consequential
damages. The above provisions are in lieu of all other
guarantees, obligations, liabilities or warranties,
expressed or implied.
Low Water
Float Switch
1
Immersion
Heaters
Capacity & Weights
Electrical Specifications
Capacity & Weights
“ECDDR” Series
Deionized
Water Unit
Model No.
Humidifier Weight
Empty
Steam Output Capacity †
Full
Lbs/hr
Kg/hr
Lbs
Kg
Lbs
Kg
ECDDR-5
15.0
6.8
139.0
63.1
223.0
101.2
ECDDR-10
30.0
13.6
140.0
63.5
224.0
101.6
ECDDR-15
45.0
20.4
141.0
64.0
225.0
102.1
ECDDR-20
60.0
27.2
142.0
64.4
226.0
102.5
ECDDR-25
75.0
34.0
143.0
64.9
227.0
103.0
ECDDR-35
102.0
46.3
146.0
66.2
230.0
104.3
Electrical Specification
“ECDDR” Series
Single Phase Amperage
Deionized
Water Unit
Model No.
KW
No. of
Heaters
ECDDR-5
5
Single
ECDDR-10
10
Double
ECDDR-15
15
ECDDR-20
Three Phase Amperage
120V 208V 240V 480V 600V
41.7
24.0
No. of
Heaters
208V 240V 480V 600V
Control
Circuit
Voltage
20.8
10.4
8.3
Triple
13.9
12.0
6.0
4.8
24 vac
41.7
20.8
16.7
Triple
27.8
24.1 12.0
9.6
24 vac
Triple
31.3
25.0
Triple
41.7
36.1 18.1
14.4
24 vac
20
Triple
41.7
33.3
Triple
24.1
19.2
24 vac
ECDDR-25
25
Triple
41.7
Triple
30.1
24.1
24 vac
ECDDR-35
34
Triple
Triple
40.9
32.7
24 vac
† The above capacities are based on 100% efficiency. Actual humidifier capacity may vary due to the heat loss
from the humidifier reservoir. The ambient air temperature, air velocity, and injection tube system will affect
the rate of heat loss from the humidifier reservoir.
2
Dimensions & Layout
2 3/8” Steam
Outlet Access
14.75”
(37.5)
16”
(40.6)
Key Locked Electrical
Access Door **
17.00”
(43.2)
*Removable access plate allows reservoir to
slide out for inspection and cleaning without
disconnecting the steam supply piping.
Removable
Access Plate*
**See local codes for minimum clearance to
electrical compartment. The electrical access
door requires a minimum clearance of 16" to
fully open.
29.50”
(74.9)
7.75”
(19.7)
TOP VIEW
Removable Key Locked
Reservoir Access Door
Operation Status
Indicating Lights
Key Locked
Electrical
Access Door
24”
(60.9)
PURE
Humidifier
Company
FRONT VIEW
Reservoir Drain Outlet
1 7/8ӯ
RIGHT SIDE
VIEW
6.50”
(16.5)
2.375”
(6.0)
8.4375”
(21.4)
Cabinet Overflow
1/2” NPT
15.00”
(38.1)
Water Inlet 3/8” NPT
Electrical Inlet 1 1/8ӯ
1.50”
(3.8)
2.00”
(5.1)
BOTTOM VIEW
Note: Dimensions are typical for all ECDDR models.
3
Humidifier Layout
Operating Status
Indicating Lights
Steam Outlet
Connection
Over-Temperature
Switch
Removable
Humidifier
Cover
Removable Key Locked
Reservoir Access Door
Removable
Humidifier
Reservoir
Float Ball
Water Valve
Immersion
Heaters
Float Ball
Water Valve
Humidifier Features
•
Key locked doors for both reservoir and electrical
access
Stainless steel float type water make-up valve
•
Easy and simple installation options
•
Low water cut-off float switch
•
•
High efficiency incoloy immersion water heaters
•
18 gauge steel cabinet with baked enamel paint
finish
Dispersion methods include Insty-Pac*, Fast-Pac*
hose kit*, or blower pack assembly* for room
distribution
•
Manual reset over-temperature safety switch
•
INTAC® microprocessor control system*
•
On/Off, Time Cycle Modulation* or SCR* control
•
Visible status and diagnostic LED indicator lights
•
•
Internal stainless steel evaporating reservoir
mounted on slides for easy removal
* Optional features
4
Location & Mounting
Location
Mounting
The location selected must provide for electrical
service, cold or hot water supply, and sanitary
drain.
Mounted from the wall. The humidifier should be
mounted dead level in both directions. PURE
Humidifier Co. supplies the wall mounting bracket.
Bracket is mounted to wall studs first. The bracket
must be mounted to wall studs or additional support
must be provided in the field. ECDDR cabinet is
then hung on the slip fit bracket.
When selecting a location, try to keep the
humidifier within 10 feet (305 cm) of the duct to
avoid unnecessary heat losses and condensation
within the steam supply line.
Drain Pan Mounting
Visible “fog” will saturate and condense when it
contacts objects such as turning vanes, filters,
fans, elbows, or take-offs. The warmer the air,
the more easily it will dissipate the visible steam.
The most active and warmest portion of the duct
will provide better mixing of the steam and air.
The injection tube should be mounted a minimum
of 2 feet (61 cm) downstream from an elbow or
other turbulent air flow area.
A drain pan is an additional safety feature which
would be required to be supplied in the field. In a
proper humidifier installation a drain pan is not
required. However, if the injection tube or tank is
located in an area that contains valuable equipment
or is a water sensitive area, PURE Humidifier Co.
recommends the addition of a drain pan under the
injection tube or tank. The drain pan should extend
a minimum of 3 feet (91 cm) downstream from the
injection tube. The pan should be a size which is
sufficient to retain sudden drainage of the contents
of the humidifier. The pan should be drained to a
sanitary drain.
Avoid mounting the injection tube closer than 810 feet (244-305 cm) upstream of objects that
could become saturated and condense the
steam (reference paragraph above). If the duct
layout does not provide a straight, unobstructed
run of 8-10 feet (244-305 cm), a multiple injection
tube system should be considered to reduce the
visible steam travel distance.
Injection Tube Installation
Single tube units should have the injection tube
installed in the center of the duct. Multiple tube
units should have the tubes staggered within the
duct (see multiple hose kit installation).
Location of Controls
It is important to avoid mounting any controls
within the visible steam. The controls should be
mounted a minimum of 8-10 feet (244-305 cm)
downstream from the humidifier injection tube.
Due to the temperature rise that exists within the
visible steam dissipation area, thermostats
should not be mounted near the injection tube.
High-limit humidistats should be installed before
any duct obstruction to make sure the humidifier
is interrupted before saturation can occur on the
object. The high-limit should be mounted a
minimum of 8-10 feet (244-305 cm) downstream
from the injection tube.
Injection tube should be pitched 2 inches (5 cm) per
foot (31 cm), back to the humidifier. If proper pitch
cannot be maintained, or the injection tube is
mounted lower than the humidifier, a drain “tee” will
be required.
Install the tube with the steam ports injection steam
up. NOTE: If narrow ducts (6”/15 cm or less, in
height) are utilized, install the tube with the steam
ports injecting with the air flow slightly (2 o’clock
position).
Galvanized steel duct plates are provided to seal
the opening where the tube enters the duct.
Multiple Injection Tube Assemblies
See page 9 for details.
5
Wall Mounting Detail
17"
EDGE OF EC HUMIDIFIER CABINET
4"
A
2"
3 7/8"
1/4"Ø Typ.
11/16"
4"
Typ.
6"
A
3/4"
21 3/8"
WALL
WALL SUPPORT
WELDED TO
BACK OF CABINET
HANGER BRACKET HOLE DETAIL
FRONT VIEW
RIGHT SIDE VIEW
WALL BRACKET
WELDED TO
BACK OF CABINET
HANGER BRACKET
BOLTED TO WALL
DETAIL
A-A
Mounting
Mounted on the wall. The humidifier should be mounted dead level in both
directions. PURE Humidifier Co. supplies a wall mounting bracket. Bracket is
mounted to wall studs first. The bracket must be mounted to wall studs or
additional support must be provided in the field. ECDDR Cabinet is then hung
on slip fit bracket.
The humidifier should be mounted dead level in both directions. PURE
Humidifier Co. supplies a wall mounting bracket. Bracket is mounted to wall
studs first. The bracket must be mounted to wall studs or additional support
must be provided in the field. ECDDR cabinet is then hung on slip fit bracket.
6
Dispersion Method
Flexible Hose Kit
Insty-Pac and Fast-Pac
Multiple Injection Tube Assemblies
Allows remote mounting of the humidifier
reservoir from the duct. Also allows the
humidifier to be located below a wall
mounted duct.
For applications where you need a short
dissipation distance. Allows remote
mounting of the humidifier reservoir from
the duct. Also allows the humidifier to be
located below a wall mounted duct.
Blower Pack for Direct Room Humidification
Allows humidifier to be mounted directly on
the wall within the space to be humidified.
7
Flexible Hose Kit Installation
Flexible Hose Kit Installation
Hose kits should have the injection tube
installed in the center of the duct. Hose and
injection tube should be pitched back to the
humidifier two inches (5 cm) per foot (31 cm).
If proper pitch cannot be maintained, or the
injection tube is mounted lower than the
humidifier, a drain "tee" will be required
(reference drain "tee" illustration).
Install the tube with the steam ports injecting
steam up. NOTE: If narrow ducts (6”/15 cm
or less, in height) are utilized, install the tube
with the steam ports injecting slightly with the
air flow (2 o’clock position).
Flexible Hose
Stainless Steel
Drain Tee
(optional)
Typical “ECDDR” Series
Electric Humidifier
3/4” SW Condensate
drain line (by others)
“H”
Water
Seal
Height
Water Seal Height ∆
The hose connects to the injection tube and
humidifier with stainless steel hose clamps
(by PURE Humidifier Co.).
Galvanized steel duct plates are provided to
seal the opening where the tube enters the
duct.
Duct (beneath
humidifier)
Total KW
5 thru 20
21 thru 34
“H”
6” (15 cm)
8” (20 cm)
∆ The water seal height may have
to be increased if excessive duct
static pressure exists.
Open Sanitary
Drain
Flexible Hose
Pitch 2” (5 cm) per foot (31 cm)
back to the humidifier.
Duct
Duct Plate
Injection Tube
Pitch 2” (5 cm) per foot (31 cm)
back towards the humidifier.
Tube Detail
1 1/2ӯ
8”
Typical “ECDDR” Series
Electric Humidifier
4”
8
Insertion Length/
Duct Width
Steam Supply Piping Examples
Pitch
(see Note 1)
Use two 45° elbows for
hard piping or wide 90° for
flexible steam hose
1/4”/1’
2”/1’
Supply piping
connectors
(see Note 4)
Pitched Towards Tube Assembly
Pitched Towards Steam Generator
Drain Tee
(see Note 8)
2”/1’
1/4”/1’
1/4”/1’
2”/1’
Typical
Humidifier
Reservoir
see Note 2
Pitched Towards Steam Generator
and Tube Assembly
Pitched Towards Drain Tee
Notes:
1. Pitch hard piping or flexible hose 2" per foot if steam is flowing uphill, 1/4" per foot if the steam is flowing
downhill. Reference piping examples shown.
2. When feasible to do so, install a minimum one-foot riser from the top of the tank to reduce condensate carry
over.
3. Install union to allow for cover removal.
4. Use flex connectors or unions to allow for easy removal of cover.
5. Support flexible hose every 18" to avoid sagging.
6. Hard piping or flexible hose must match reservoir outlet size. Do not use supply piping with a smaller inside
diameter than the reservoir outlet.
7. Failure to follow the piping recommendation on this page may result in blown water seals, leaking cover
gasket or dispersion tubes spitting.
8. Install a Drain Tee at any low spots in supply piping run where condensate will accumulate.
9. Reference job specific tube assembly O&M included with your order for complete details.
9
Piping
Water Supply Piping
Drain Piping
This style humidifier utilizes a float operated fill
valve system which is designed for use with
deionized, demineralized, or reverse osmosis
water. Use of mineralized tap water will cause fill
valve failure and will void the humidifier warranty.
The “ECDDR” style humidifier requires one 3/4”
stainless steel drain piping connections run to an
open drain.
The drain piping should be stainless steel. The
use of PVC piping is not recommended; the
humidifier water temperature may cause the PVC
to soften and fail.
Cold or hot deionized, demineralized, or reverse
osmosis water can be supplied to the humidifier. A
minimum water pressure of 15 psi (1.03 Bar)
should be maintained to provide the proper water
level within the humidifier. If the water pressure is
above 50 psi (3.5 Bar), water hammer could occur
and a pressure reducing valve or shock arrester
should be used. The humidifier has a factory builtin 1.5” (4 cm) air gap between the water inlet and
the overflow. Local codes should be checked to
see if the addition of a vacuum breaking device is
required. Water connection is made at the bottom
of the humidifier with 3/8” NPT piping.
The “ECDDR” humidifier has a factory piped
internal water seal. The humidifier reservoir
must be manually overfilled to prime the water
seal prior to operation.
If gravity drain is not possible please use a
condensate pump rated for 212°F water or PURE
Humidifier Co. Part No. 16033 Hartell A3X-115
condensate pump.
Typical “EC” Series
Humidifier (Right
Side View)
3/8” NPT Water Inlet
3/4” Stainless
Steel Drain
WARNING:
Cabinet Overflow
Drain
Open Sanitary
Drain
10
Humidifier Reservoir Drain and Cabinet
Overflow Drain (see page 3) MUST be run
separately. These lines CANNOT be tied
together into a common drain line. Draining
malfunction will occur causing damage to the
humidifier system.
Blower Pack
Optional Blower Pack
Locating Blower Pack
In applications where a ducted air system is not
available, PURE offers the optional Blower Pack.
The Blower Pack contains a two-speed
adjustable blower that moves the air over the
steam discharge outlet and disperses the steam
directly into the space (see Fig. 1). The Blower
Pack mounts directly on top of the “ECDDR”
humidifier or can be remote mounted (see Fig.
2).
The distance that visible steam will travel after
leaving the Blower Pack is dependent upon the
relative humidity in the room and the capacity of
the humidifier. If this visible steam comes in
contact with any solid object (walls, beams,
machinery, etc.), it may form condensate and
drip. Refer to Fig. 3 and Table 4 (Table 4 is
located on page 12) for data on visible steam
travel. This will aid you in planning the location
of the Blower Pack.
Air is drawn
into Blower Pack
Blower Pack
Remote Mounting
The Blower Pack may be remote-mounted up to
ten feet away from the “ECDDR” wall mount
humidifier (see Fig. 2).
Steam is discharged
directly into space
“ECDDR” Wall Mount Humidifier
“ECDDR” With Optional Blower Pack
Fig. 1
Remote Blower Pack
Rise
Throw
“ECDDR” Humidifier
Visible Rise and Throw
Fig. 3
Remote Mounted Blower Pack
Fig. 2
11
Blower Pack
Locating Blower Pack
The distance that visible steam will travel after leaving the Blower Pack is dependent upon the relative
humidity in the room and the capacity of the humidifier. If this visible steam comes in contact with any
solid object (walls, beams, machinery, etc.) it may form condensate and drip. Refer to Fig. 3 (Fig. 3 is
located on page 11) and Table 4 for data on visible steam travel, this will aid you in planning the location
of the Blower Pack.
Humidifier Model
Visible Steam
Rise & Throw
50%
RH
60%
RH
ECDDR-5
ECDDR-10 ECDDR-15 ECDDR-20 ECDDR-25 ECDDR-35
Rise (ft)
1’
2’
3’
4’
5.5’
8’
Throw (ft)
8’
10’
13’
16’
18’
23’
Rise (ft)
2’
3’
4’
5’
6’
8’
Throw (ft)
13’
14’
16’
18’
20’
25’
Throw is the horizontal distance the visible steam travels from the steam discharge.
Rise is the vertical distance the visible steam travels from the steam discharge.
Objects in the direct line of the visible steam or objects that are cooler than the ambient temperature may
accumulate condensation.
Note: Data above based on 70°F room temperature.
Table 4
296/435 CFM Fan
120/1/60*, 2.17 amps
1/15 HP
29 1/2”
Steam
Discharge
15”
14 3/4”
7 3/4”
Steam Inlet
17”
Left Side View
Front View
Optional Blower Pack Dimensions
Fig. 5
Blower Pack weight is 60 lbs (27.2 kg)
* Blower requires a separate 120/1 circuit (by others)
12
Start-Up Procedure
Introduction
Before starting the “ECDDR” PURE Humidifier
Co. Electric Humidifier, check the f o l l o w i n g
installation procedures:
4. Turn the electric power “on” to the humidifier.
The “Power” LED light on the controller should
be illuminated.
1. MOUNTING – Verify that the humidifier
evaporating chamber is securely supported and
that the evaporating chamber is level in both
directions.
5. Set the switch on the control board to the
“Normal” position.
6. Open the water supply valve (by others) and
allow the humidifier evaporating chamber to fill
to the proper level.
2. INJECTION TUBE - Verify that the humidifier
injection tube is mounted within the duct with the
proper pitch back to the humidifier (2”/5 cm per
foot/31 cm). NOTE: If the humidifier evaporating
chamber or the flexible hose (optional) is
mounted higher than the injection tube, a drain
“tee” is required to drain the condensate out of
the injection tube and steam line.
7. After the humidifier is full of water, the “Water
Level Full” LED will illuminate. Turn humidistat
up to call for humidifier demand.
8. Verify the low water safety circuit by opening the
manual drain valve. As the humidifier tank is
draining, the “Water Level Full" light should go
out when the low water level is reached; this
indicates that the low water safety circuit is
operational.
3. ELECTRICAL - Verify that all wiring connections
have been connected in accordance with the
wiring diagram. CAUTION: Live power may
exist in the control cabinet. Turn off the main
power at the disconnect switch before
verifying the electrical connections!
9. Close the drain valve and allow the humidifier to
fill to the proper level.
4. PIPING - Verify that all piping connections have
been completed as recommended and that water
pressure is available to the humidifier.
10. Make sure all the optional safety switches are
satisfied (airflow proving switch, high-limit
humidistat, etc.).
5. Verify that the plastic bubble wrap installed for
shipping purposes has been removed from the
internal float ball assembly.
11. The heater(s) should energize on a call from the
humidistat.
12. Check operation of optional field-installed safety
switches (airflow proving switch, high-limit
humidistat, etc.) to make sure that they turn the
power off to the control circuit. The safety
switches should shut-off the humidifier heaters
whenever one or more of the optional safety
switches create an “open circuit”.
Start Up Procedure
1. With the power “off”, set the switch on the control
board to the “Stand-by” position (the control
board is located within the humidifier control
panel door).
13. Check heater amperage draw by testing and
recording voltage and amperage in each phase.
Readings should match the factory heater
nameplate.
2. Close the humidifier manual ball valve (located
inside the humidifier evaporating chamber
compartment).
3. Turn the controlling humidistat to the lowest
setting (no call for humidity).
14. Allow the humidifier to come to a full boil, this
will take approximately 15 minutes.
15. Carefully check cover and all connections for
any leaks while humidifier is boiling. Any leaks
should be sealed.
13
Maintenance Instructions & Wiring Notes
PURE Humidifier Co. “ECDDR” Maintenance Instructions
The “ECDDR” Series Electric Humidifier is practically maintenance free. However, the humidifier should
be inspected and placed on a dedicated maintenance schedule to ensure continued operation of the
humidifier and its accessories.
Inspect/Maintenance Item
Procedure to Follow
Water make-up float valve
Check to make sure the fill valve is operating
properly. If the valve appears to continually fill,
check the valve adjustment or valve seat and seal
(see trouble shooting instructions).
Low water float switch
Check to make sure the switch will shut the
humidifier off when the water level drops too low.
Open the drain valve to allow water to drain out for
checking purposes. Make sure to reset the drain
valve after inspection is completed.
Safety interlocks
(air flow, high-limit)
Check to make sure the safety interlocks (air flow,
high-limit, etc.) will shut down the humidifier.
Immersion heaters
Verify the correct amperage is being drawn by the
heating element. Reference the wiring diagram
for correct amperage.
Humidifier cover/tank
Inspect for any leaks. Repair as required.
Remove the heater assembly and remove mineral
deposits from floor of the humidifier reservoir. If
excessive mineral build-up is found, the cover
may need to be removed to facilitate complete
cleaning of the humidifier.
Flexible hose
Inspect for cracks or leaks. It is normal for the
hose to become hard and develop a “set”.
Wiring Notes
1. Main power disconnect is by others.
2. Humidifier to control panel wiring diagram is provided within the humidifier control panel door.
All field wiring connections are shown on the wiring diagram.
3. All wiring to be per local and national electrical codes.
4. Humidifier is ETL Testing Laboratories tested and approved.
5. All control circuit wiring should be ran within separate conduit from the main power
wiring.
6. If optional modulating control is used, modulating humidistat wiring must be ran within
separate conduit from the main power.
14
Trouble Shooting
Problem
Humidifier will not heat
Humidifier will not fill
Humidifier will not stop
filling or is short cycling
Possible Cause
Recommended Action
Blown heater fuse(s)
Check and replace.
Control transformer not
producing 24 vac control
voltage
Check transformer output and verify voltage.
Safety controls open
(air flow switch, high-limit, etc.)
Verify that all safety controls are completing the
safety circuit.
Faulty humidity sensor
Verify voltage to and from humidity sensor.
Faulty immersion heater
Check and verify heater voltage and amperage.
Compare to diagram or nameplate label
ratings.
No water pressure
Check water supply.
Drain valve open
Close drain ball valve.
No power to the fill valve
Check float valve seat for dirt.
Fill valve stuck open
Check float valve seat for dirt.
Adjust float ball arm.
Drain valve open
Close drain ball valve.
15
Tool Requirements & Maintenance Notes
Recommended Maintenance Tool List
7/16” Wrench or Socket
5/8” Wrench
5/32” Nut Driver or Socket
5/16” Nut Driver or Socket
11/32” Nut Driver or Socket
3/8” Nut Driver or Socket
5/32” Allen head
Flat head screwdriver
Wire stripper
Wire crimper
Pipe Wrench
Maintenance Notes
Maintenance Performed
Date
16
By
17
Pure Humidifier Company “ECDDR” Series
Parts List & Two Year Recommended Spare Parts
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Description
Part No.
ECDDR Exterior Cabinet
ECDDR Cabinet Door, no lock, see item 19
ECDDR Reservoir Assembly
ECDDR Reservoir Cover Assembly
Immersion Heating Elements
Float Valve & Ball, 316 SST
1/4" 90 Degree Elbow, 316 SST
304 SST Half Coupling
Low Water Float Switch
Cover Gasket
Cover Clamp
Cover Clamp Screws
10-24 U-Nut
Overtemp Protection Switch
Overtemp Switch Housing
1/2" Ball Valve, 316 SST
Cabinet Cover Plate
Power Supply Cover
Door Lock and Keys
Heater Contactor
Pilot Relay
Relay Socket
Fuse Block
Heater Fuses
Step-Down Transformer
Fuse Holder
Fuses
Control Board
Wiring Harness
Wiring Harness
14 Point Terminal Strip
18001
18002
A
A
A
09079
07019
07098
15048
A
15930
15522
15524
15047
15072
09089
18005
18008
12001
A
12022
12020
A
A
A
A
A
A
A
18027
12044
Qty
Rec.
Per Unit. SpareQty.
1
1
1
1
A
1
1
1
1
A
A
A
A
1
1
1
1
1
1
1
1
1
1
3
1
1
2
1
A
1
1
NOTES/CODES:
A = Part Number and quantity vary with model number.
When ordering replacement or spare parts, please have the following information
available: Model Number, Primary Volage, Serial Number, No. of Heaters & Heater
KW and any options (ie, automatic drain, modulating control or insulation etc.)
18
141 Jonathan Blvd. North
Chaska, MN 55318
Tel: (952) 368-9335 Fax: (952) 368-9338
www.purehumidifier.com
14
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