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READ AND SAVE THESE INSTRUCTIONS
MULTIPLE TUBE ASSEMBLY
Stainless steel
tube header
Duct plate
Flexible steam
supply line
(or hard piped
by others in field)
Typical PURE
Humidifier Co.
humidifier
"H"
water
seal
Open sanitary
drain
CUFFED FAST-PAC
INTERNAL MOUNT
INSTALLATION
AND
ASSEMBLY INSTRUCTIONS
Flex connectors
(by PURE)
(by PURE)
Secure to
AHU/duct
casing with
3/8-16
UNC bolts
3/4" SW drain piping
(by others)
"H"
water
seal
Open sanitary
drain
1. Steam supply piping should be pitched two inches (2") per foot,
back to the humidifier.
2. Install tube with orifices injecting steam up.
3. All drain piping is done by others.
®
PURE HUMIDIFIER
is a registered trademark of PURE Humidifier Co.
Fig. 1
AHU/duct casing
Injection tube
AHU/duct width
"ES"/ "EC" Water Seal Height
Total KW
"H"
3 thru 19.5
8" (20 cm)
22 thru 33
11" (28 cm)
39 thru 49.5
17" (43 cm)
58.5 thru 102
19" (48 cm)
The water seal height may have to be increased
if excessive duct static pressure exists.
INSTALLATION
Typ. centers
AHU/duct height
Secure to AHU/duct
casing with 3/8-16
UNC bolts
"SX"/ "GX" Water Seal Height
Total lbs./hr (kg/hr)
"H"
Up to 60 (27.2)
8" (20 cm)
61 to 99 (44.9)
11" (28 cm)
100 to 150 (68.0)
17" (43 cm)
151 and above
19" (48 cm)
Form No: IFPC 4/15
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Summary of Contents for Pure Humidifier Fast-Pac
- Page 1 1. Steam supply piping should be pitched two inches (2”) per foot, back to the humidifier. 2. Install tube with orifices injecting steam up. 3. All drain piping is done by others. ® PURE HUMIDIFIER is a registered trademark of PURE Humidifier Co. Form No: IFPC 4/15...
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Page 2: Verify Components
Cuffed Fast-Pac Injection Tube Assembly Internal Mounting Instructions The Fast-Pac tube assembly supplied with the humidifier(s), is designed for rapid dissipation of steam. The tube assembly is designed for internal AHU or duct mounting. AHU/duct access must be provided which allows the injection tube assembly to be located internally! The injection tube assembly was sized to fit inside the AHU or duct dimensions. - Page 3 Internal Mount Multiple Injection Tube Assembly Component Identification ITEM DESCRIPTION QUANTITY Supply/condensate header Flexible connector 1 per tube Adjustable screw clamps 2 per tube Injection tubes varies with order Tube support bracket Tube mounting bolts 1 per tube Duct plate (condensate) Fig.
- Page 4 - special order) Fig. 3 Notes: 1.) Center the Fast-Pac injection tube assembly in the duct height. 2.) The injection tubes should pitch back towards the header with a minimum of 2" per foot of pitch (see above illustration).
- Page 5 Controls Fan Interlock Switch PURE Humidifier Co. recommends the use of an air flow proving switch or fan interlock to prove air flow prior to humidifier cooperation. Humidifier operation without air flow will result in over-saturation of the air stream. Air flow proving switches are available as optional equipment from your PURE Humidifier Co.
- Page 6 Troubleshooting Too Much Humidity 1. Humidity controller out of calibration. 2. Humidifier oversized. 3. Check humidifier (GX, SX, ES, EC) for proper operation. Too Little Humidity 1. Humidity controller out of calibration. 2. Undersized humidifier. 3. Check humidifier (GX, SX, ES, EC) for proper operation. 4.
- Page 7 Steam Supply Piping Examples Pitch Use two 45° elbows for (see Note 1) hard piping or wide 90° for flexible steam hose 1/4”/1’ 2”/1’ Supply piping see Note 2 connectors see Note 2 (see Note 4) Pitched Towards Steam Generator Pitched Towards Tube Assembly Drain Tee (see Note 7)
- Page 8 DISCLAIMER Product Changes: Changes in products may be required from time to time due to factors beyond the Seller’s control, or the need for continuing improvement of products. The Seller reserves the right to make reasonable changes in products, specifications and performance of any kind without notice or liability.
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