DriSteem MP Скачать руководство пользователя страница 28

Страница: 28 / 32

ULTRA-SORB MP INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Table 26-1:
Ultra-sorb Model MP troubleshooting

Problem

Possible cause

Action

Humidifier discharges

water in duct

• Steam main overloaded with water due

to boiler discharging water with steam

(priming)

• Locate cause of priming and correct.

• P- trap not draining properly

• Replace or clean trap as required.

• If condensate return main is overloaded, find an

alternative method for draining.

• Humidifier improperly piped

• Correct the piping as shown on Page 6. Steam inlet

should be at center off the header and condensate outlet

at the bottom of the assembly.

• Surges of condensate in steam supply due

to condensate collecting at low, undripped

point in steam main

• Install drips and steam traps as required. See Page 6.

• Inadequate main steam trap capacity

• Replace with larger trap.

Humidity exceeds

setting of humidistat

• Control valve not fully closing

• Foreign matter holding valve open; clean valve.

• Check signal and power to valve.

• Valve steam packing too tight; loosen and/or replace

packing.

• Steam pressure exceeds close-off rating of valve spring;

replace actuator or valve spring with one that is

compatible with the higher steam pressure.

• Valve installed backwards; re-install.

• Adjust valve linkage.

• Faulty or inaccurately placed humidity

controller

• Replace controller or relocate per catalog

recommendations.

• Poor location of control components

• Relocate per catalog recommendations.

• Incompatible control components

• Replace per specified recommendations.

• Automatic valve is hunting

• Humidifier capacity is oversized; change to smaller valve.

• Pressure reducing valve is not accurately controlling steam

pressure; repair or replace.

• Boiler pressure is swinging too widely; adjust.

• Excessive outside air volume

• Check fans, dampers, VAV, etc. See formula below.

Mixed Air Inlet formula: (% outside air x moisture content)

+ (% return air x moisture content)

= mixed air inlet in lbs/100 cfm

(kg/100 m3/h)

Control system

malfunctioning

• Incorrect control voltage

• Replace transformer.

• Incorrect control signal

• Replace components.

• Improper wiring connections

• Rewire.

• Incorrect humidity sensor

• Replace.

• Humidity controller out of calibration

• Recalibrate.

Air cannot absorb

steam quantity being

discharged

• Humidifier operates when blower is off

• Provide interlock.

• Valve is hunting

• See above.

• Air temperature in duct too low for steam

quantity being emitted

• Raise duct air temperature.

Humidifier is noisy

• Steam pressure too high

• Reduce pressure.

Continued

Troubleshooting

MAINTENANCE

Содержание MP

Страница 1: ...Model MP Steam Dispersion Panels Installation Operation and Maintenance Manual Read and save these instructions ULTRA SORB MODEL MP DISPERSION PANELS ...

Страница 2: ...lacement in an air handling unit 9 Mounting and support 10 Horizontal duct 11 Placement in a duct 11 Mounting and support 12 Installation in a cold air stream 12 Placement upstream from an elbow or duct split 12 Installation above valuable equipment 12 Panel support 12 Mounting in a horizontal duct 13 Pressurized steam application 15 Placement in a steam application 15 Piping from a pressurized st...

Страница 3: ... sharp object to remove the poly film High efficiency tube option Dispersion assemblies with the High Efficiency Tube option are designed to produce significantly less dispersion generated condensate and airstream heat gain which reduces wasted energy by up to 85 CAUTION Remove clear poly film do not remove white PVDF insulation High efficiency tubes are sleeved in clear poly film for protection d...

Страница 4: ...ating pins on the flanges and top frame and insert screws TIGHTEN THE FLANGE LOCKNUTS Torque the eight flange locknuts to 16 ft lb 22 N m at 100 rpm maximum using a 7 16 deep well socket INSTALL THE DISPERSION TUBES Note Do not remove the poly film from the dispersion tubes until after the panel is installed Table 2 1 Ultra sorb Model MP components Component Qty Header assembly 1 Dispersion tubes ...

Страница 5: ...t a slight angle to not interfere with top frame of Ultra sorb panel 2 Press downward on tube so to clear stud at top of tube Align tube with rivet nut on top of the header 3 Once aligned turn the tube three full rotations into rivet nut for proper engagement 4 Turn the tube backwards so that the steam tubelets face the next tube perpendicular to air flow Face the lowest tubelet of each tube in th...

Страница 6: ...ltra sorb Model MP tube capacity Tubes lbs hr kg hr 1 5 Uninsulated 40 18 1 Insulated 43 19 5 2 0 Uninsulated 77 34 9 Insulated 80 36 3 If face height B is 17 432 mm consult DriSteem or see DriCalc for the correct calculation Table 4 1 Ultra sorb Model MP unit capacity Evaporative steam Pressurized steam 2 50 psi lbs hr kg hr lbs hr kg hr 700 318 2720 1235 All except with 4 NPT steam inlet 4 NPT s...

Страница 7: ...ion steam inlet 1 or 2 NPT coupling for pressurized steam 1 or 2 NPT coupling for evaporative steam 3 or 4 flange for evaporative steam DN25 or DN50 BSPT nipple for pressurized steam DN50 DN80 or DN100 BSPT nipple for evaporative steam 1 or 2 DN40 or DN50 hose for evaporative steam H Drain port internal thread NPT DN20 coupling J Overall width 1 NPT coupling dimension A 1 8 1 NPT coupling dimensio...

Страница 8: ...talled with the drain connection at an elevation that permits gravity drainage For lifting condensate use a condensate pump rated for your application Contact your local DriSteem representative for pump selection Ultra sorb condensate outlet 3 4 20 mm minimum copper Table 6 1 Condensate piping for Ultra sorb MP steam dispersion panel Evaporative steam Pressurized steam P trap water seal Figure 6 1...

Страница 9: ...ersion tube OM 7842 Orifice tubelet Hose Flange Coupling OM 607 1a OM 607 1b OM 607 2 Connections and dispersion tube detail Airflow DN20 threaded condensate drain outlet FIGURE 7 3 ULTRA SORB MODEL MP STEAM INLET TYPES FIGURE 7 4 INSULATED TUBE DETAIL HIGH EFFICIENCY TUBE OPTION Grommet FIGURE 7 1 ULTRA SORB MODEL MP STEAM INLET AND CONDENSATE OUTLET POSITIONS FIGURE 7 2 DISPERSION TUBE DETAIL Ni...

Страница 10: ...ot place the Ultra sorb panel in an outside air intake unless the air is tempered with a preheat coil Do not place the Ultra sorb panel near the entrance of a high efficiency filter The filter will remove visible moisture and become waterlogged See the Caution Installing the Ultra sorb panel upstream from filter media on page 21 Do not place the Ultra sorb panel where discharged visible mist will ...

Страница 11: ...limit as far downstream as possible but before a duct transition to prevent wetting again duct walls or other components within the airstream General recommendation is 8 12 2 4 to 3 7 m downstream PLACEMENT IN AN AIR HANDLING UNIT Location A is the best choice Installing downstream from heating and cooling coils provides laminar flow through the dispersion unit plus the heated air provides an envi...

Страница 12: ...ay be required on both the inlet and outlet ends of the humidifier to provide proper support See Figure 10 2 Air flow Mounting channel Typ Blank off plate Side blank off Additional mounting support channels required on larger Ultra sorb units Air handler casing Ultra sorb overall width Steam supply AHU casing Dispersion tube Mounting channel Typ Floor drain Header Blanked off area 1 25 mm air gap ...

Страница 13: ...s far downstream as possible but before a duct transition to prevent wetting again duct walls or other components within the airstream General recommendation is 8 12 2 4 to 3 7 m downstream PLACEMENT IN A DUCT Location C is the best choice Air leaving a fan is usually very turbulent and can cause vapor to not absorb at the expected non wetting distance Allow for more distance if installing downstr...

Страница 14: ...tream from elbows or duct splits can be done See Figure 12 2 if placed upstream a minimum of the non wetting distance Ensure adequate absorption prior to a duct transition to prevent potential wetting of duct surfaces Place transition at least the non wetting distance downstream but may be longer INSTALLATION ABOVE VALUABLE EQUIPMENT Water piping and humidifiers should not be installed above expen...

Страница 15: ...exceed 12 305 mm If an angle iron frame is provided on the duct section a longer screw may be required Ultra sorb Mating flanges of duct are attached to header enclosures Header enclosure 1 38 mm Mounting flange Mating flanges of duct are attached to header enclosures OM 7864 OM 7863 Side view FIGURE 13 1 ULTRA SORB MODEL MP IN DUCT FIGURE 13 2 ULTRA SORB MODEL MP 1 38 mm Mounting flange Do not pu...

Страница 16: ...ientation When removing and installing the dispersion tubes verify that the replacement grommets are seated in their grooves and lubricated When sliding the dispersion tube into the grommet be careful not to cut the grommet Note To prevent leakage use HVAC caulking compressible strip or a similar weather sealant to the dispersion panel joints and duct flanges Seal all places where the Ultra sorb i...

Страница 17: ...p across the valve the steam pressure at the header traps is minimal Condensate must be drained 10 Dispersion tubes are available at 3 76 mm 4 102 mm for 2 diameter only 6 152 mm 9 228 mm 12 305 mm centers 11 Ultra sorb humidifiers will be assembled crated and shipped intact in all sizes up to 93 2360 mm unit height Ultra sorb can be shipped unassembled by request requiring field assembly 12 Sizes...

Страница 18: ...ication STEAM FROM A PRESSURIZED STEAM Ultra sorb panels for pressurized steam have a threaded pipe nipple that extends outside the framework for a steam supply connection The steam supply line should be dripped immediately ahead of the steam valve through a steam trap See Figure 6 3 RECOMMENDED TRAP FOR STEAM MAIN DRIP LEG Use a float and thermostatic F T trap on the steam supply if 15 psi and no...

Страница 19: ...rrounding it must be sealed The blanked off area below the Ultra sorb provides clearance height for water seals and condensate piping connections 6 Condensate must be drained 7 Dispersion tubes are available at 3 76 mm 4 102 mm for 2 diameter only 6 152 mm 9 228 mm 12 305 mm centers 8 Ultra sorb humidifiers will be assembled crated and shipped intact in all sizes up to 93 2360 mm unit height Ultra...

Страница 20: ...ier using same 2 ft 15 pitch TUBING PITCH Pitch at least 1 8 ft 1 towards Ultra sorb so condensate and steam flow in same direction Alternatively can pitch back to humidifier using at least 1 4 ft 2 if using insulated tubing pipe or 1 2 ft 4 if not insulated tubing pipe 90 elbows are not recommended Use two 45 elbows one foot apart see Figure 18 2 Failure to follow the above recommendations may re...

Страница 21: ...For threading pipe connection options see DriSteem s DriCalc sizing and selection software available at www dristeem com Hose and clamps can be used for connections at the steam cylinder and at the Ultra sorb Due to the difference between the tubing O D and the steam hose I D multiple hose clamps may be required STEAM HOSE PITCH Support steam hose to prevent sags or low spots and pitch at least 2 ...

Страница 22: ...oped length 4 inches DN lbs hr kg h ft m inches DN lbs hr kg h ft m 1 40 150 68 10 3 1 40 150 68 20 6 2 50 250 113 10 3 2 50 220 100 30 9 1 Use DriSteem steam hose for best results Other hose may have shorter life and may cause foaming in the evaporating chamber resulting in condensate discharge at the dispersion assembly Do not use steam hose for outdoor applications 2 Maximum recommended length ...

Страница 23: ...m representative for recommendations NON WETTING DISTANCE Non wetting distance is the distance downstream from the leaving side of the steam dispersion assembly to the point where wetting will not occur This distance is dependent on several application parameters To determine your dispersion assembly s non wetting distance consult your system s design engineer or project documentation Non wetting ...

Страница 24: ...GH LIMIT HUMIDISTAT To prevent over saturation when duct air is cooler than 70 F 21 C use a high limit duct mounted humidistat Figure 15 1 Mount it 10 to 15 3 to 4 5 m downstream from the Ultra sorb panel and set it at 80 to 90 RH Controls OPERATION FIGURE 22 1 ULTRA SORB MODEL MP TYPICAL CONTROL WIRING 2 10 VDC REVERSE ACTING SIGNAL FROM BAS OR HUMIDISTAT MODULATING STEAM CONTROL VALVE 2 10 VDC S...

Страница 25: ... for leaks 5 Ensure that the dispersion tubes are oriented with the tubelets at a right angle to the airflow See Figure 14 1 6 Check for any other leaks from steam and drain connections 7 Ensure that the P traps are operating At the beginning of the season ensure there is a stream of water from condensate drain when operating 1 If not verify P trap is not blocked 2 If steam is blowing out of the P...

Страница 26: ...es off steam tightly and the stem packing is not leaking Pneumatic Inspect annually to be sure the valve closes off steam tightly the stem packing is not leaking steam and the diaphragm in the actuator is not leaking air HIGH EFFICIENCY TUBES If the insulating material gets dirty or smudged gently clean it with a damp cloth and a solution of soapy water or diluted non toxic biodegradable cleaner d...

Страница 27: ...mmet to ease turning and removal of the dispersion tube 2 Loosen the jam nut from the tube nut at top of the tube Rotate the tube off the top frame assembly bolt about 4 rotations of the tube 3 Press downward on the tube so to clear bolt at top of frame 4 Move the tube to a slight angle so that it does not interfere with top frame of Ultra sorb Model MP panel 5 Pull the tube out from the rubber gr...

Страница 28: ...s compatible with the higher steam pressure Valve installed backwards re install Adjust valve linkage Faulty or inaccurately placed humidity controller Replace controller or relocate per catalog recommendations Poor location of control components Relocate per catalog recommendations Incompatible control components Replace per specified recommendations Automatic valve is hunting Humidifier capacity...

Страница 29: ...circuit voltage Replace component s to make all components compatible Incorrect control signal Replace components Improper wiring Rewire Incorrect humidity sensor Replace sensor Humidity controller out of calibration or malfunctioning Repair or replace Malfunctioning humidifier temperature switch not allowing humidifier valve to open Replace or readjust Pneumatic control system malfunctioning Repa...

Страница 30: ...28 ULTRA SORB MP INSTALLATION OPERATION AND MAINTENANCE MANUAL OM 7890 Replacement parts 1 MAINTENANCE FIGURE 28 1 ULTRA SORB MODEL MP REPLACEMENT PARTS 2 3 6 7 5 8 4 OM 7854_rightside 11 10 9 ...

Страница 31: ...non insulated dispersion tube Consult factory 2 50 mm high efficiency insulated dispersion tube Consult factory 2 50 mm high efficiency non insulated dispersion tube Consult factory 5 Screw 8 32 x 3 8 PHL PNHD DRV Type F stainless steel SST 191172 015 Screw 8 32 x 3 8 PHL PNHD Type F 191172 020 6 Grommet for 1 38 mm dispersion tube 405895 150 Grommet for 2 50 mm dispersion tube 405895 200 7 Frame ...

Страница 32: ...on applies regardless of whether such damages are sought based on breach of warranty breach of contract negligence strict liability in tort or any other legal theory even if DriSteem has notice of the possibility of such damages By purchasing DriSteem s products the purchaser agrees to the terms and conditions of this Limited Warranty Extended warranty The original user may extend the term of the ...

Результаты поиска

Содержание MP

Отзывы:

Похожие инструкции для MP

Бренды по названию

Популярные бренды

DriSteem MP, Инструкция по установке, эксплуатации и обслуживанию

Результаты поиска

Содержание MP

Отзывы:

Похожие инструкции для MP

Бренды по названию

Популярные бренды