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010.4150.0720  08.21

1.2 COMPONENTS

The VHX-DR Heat Recovery Center can be supplied 

in several configurations with single or multiple heating 

modules. A modulating bypass damper controlled by a 

modulating damper actuator is standard for all. The major 

components are shown in Fig 1.
Components such as headers, pressure relief valves, 

temperatures sensors, flowmeters and controls are optional 

but can be supplied by ENERVEX.

1.3 SHIPPING

ENERVEX inspects all equipment prior to shipment and 
cannot be held responsible for damage caused in transit. In 
addition, all electrical devices are also thoroughly tested to 
assure that they operate according to design specifications.
All economizers are shipped via common carrier. Take care 
to inspect the economizer when you receive it and make 
any claims for damages immediately to the carrier within the 
allowable time limit.
The VHX-DR product line units are shipped on pallets. To 
remove the economizer, first position the unit, while either 
still in the shipping container or on the skid, as close to the 
installation site as possible. Then attach a lifting hoist to all 
the lifting lugs located on the top of the housing or on the 
side.
If other components are shipped, these will appear as 
separate items on the shipping packing list.
If there are any questions during the removal and installation 
of the exchanger please do not hesitate to contact your 
authorized ENERVEX representative for suggestions. 

1.4 WARRANTY

2-Year Factory Warranty. Complete warranty conditions are 
available from ENERVEX, Inc.

Fig 1

1. Economizer housing
2. Mounting Flanges (bolt flange)
3. Damper (not pictured)
4. Modulating actuator
5. Header (optional)
6. Connection flange
7. Flexible connectors
8. Connection for pressure relief valve
9. Connection for water temperature sensor
10. Cover for heat module chamber
11. Lifting lugs

Содержание VHX 1600-22DR

Страница 1: ...perating Manual ENERVEX VHX DR VORTEX HEAT RECOVERY CENTER ENERVEX Inc 1685 Bluegrass Lakes Parkway Alpharetta GA 30004 USA P 770 587 3238 F 770 587 4731 T 800 255 2923 info enervex com www enervex co...

Страница 2: ...esigned to show how a basic burner operates Operating controls will normally function for long periods of time and we have found that some operators become lax in their daily or monthly testing assumi...

Страница 3: ...12 5 4 Safety Relief Valves 12 5 5 Mouting of Flow Meters if applicable 12 5 6 Special Installation Considerations 12 6 ELECTRICAL INSTALLATION 6 1 General 14 6 2 Modulating Bypass Damper 14 7 STARTUP...

Страница 4: ...tric volume flows with exceptionally high performance and are mounted in individual slots an easily serviceable configuration A modulating multi blade damper design provides bypass capabilities for us...

Страница 5: ...y to the carrier within the allowable time limit The VHX DR product line units are shipped on pallets To remove the economizer first position the unit while either still in the shipping container or o...

Страница 6: ...Type Cross 30 140 Cross 30 140 Cross 30 140 Cross 30 140 Cross 30 140 Cross 30 140 Cross 30 140 Heat Exchanger Plate Surface Area Ft2 416 624 832 1040 1248 1456 1664 Operating Pressure Max PSI 230 Wat...

Страница 7: ...ng The liquid flow must be constant and with sufficient pressure to keep its evaporating boiling temperature above the plate temperature Local evaporation boiling will adversely affect heat transfer a...

Страница 8: ...reezing of water in the VHX DR housing and pipes see Section 4 3 The vent pipe must be installed and supported according to the chimney manufacturer s instructions and or in accordance with NFPA54 NFP...

Страница 9: ...er depends on the model please refer to the specification drawing for the specific VHX model Apply expansion joints supplied by others as required by the installation to ensure that no outside forces...

Страница 10: ...duction in heat recovery Eventually if the reduction is inadequeate the damper will open completely which will make the exhaust flow bypass the heat modules Fig 4 Fig 6 4 5 CONNECTION TO THE CHIMNEY B...

Страница 11: ...in the atmosphere when determining the best piping material for your installation The use of valves is recommended where isolation might be required Non ferritic piping is recommended if using non de...

Страница 12: ...Valve s is required for every installation In a system with headers they must be installed according to Fig 13 NOTE The safety relief valves must be located between any isolation valves and the VHX DR...

Страница 13: ...id connections interfere with the opening of recovery unit trays Economizer relief valves shall not have set pressure ratings higher than the rated pressure of the heat modules Liquid storage tank rel...

Страница 14: ...otected from physical damage 6 2 MODULATING BYPASS DAMPER The only electrical part of the VHX DR is the actuator serving the Modulating Bypass Damper The actuator can be controlled by a 0 10VDC signal...

Страница 15: ...he exchanger is in a clean like new condition note and record the following at a specified condition Liquid inlet and outlet temperatures Exhaust gas inlet and outlet temperatures Pressure gauge readi...

Страница 16: ...2 Remove all bolts from the cover plate 3 Remove the cover plate which gives full access to the heat modules 4 Slide modules out individually 8 3 MAINTENANCE The module has no moving parts or electri...

Страница 17: ...dry dirt such as carbon ashes or dust most of the dirt sticks to the inlet surface Cleaning with compressed air or high pressure water up to 200 bar is normally effective Exhausts from diesel vegetab...

Страница 18: ...18 010 4150 0720 08 21 9 APPLICATION EXAMPLES 9 1 PREHEATING BOILER RETURN WATER 9 2 PREHEATING CIRCULATING FEED WATER...

Страница 19: ...19 010 4150 0720 08 21 9 3 PREHEATING BOILER MAKE UP WATER 9 4 PREHEATING STEAM BOILER FEEDWATER WITH MODULATING FEED WATER VALVE...

Страница 20: ...20 010 4150 0720 08 21 9 6 CONDENSATE RETURN HEATING 9 5 CIRCULATING MAKE UP WATER HEATING...

Страница 21: ...21 010 4150 0720 08 21 9 7 CALORIFIER HEATING LOOP 9 8 PROCESS WATER HEATING...

Страница 22: ...let and outlet flue temperatures are constantly monitored and the bypass damper will dynamically respond to water outlet temperature The HRC80 features a series of set points allowing maximum flexibil...

Страница 23: ...23 010 4150 0720 08 21 Notes...

Страница 24: ...ENERVEX Inc 1685 Bluegrass Lakes Parkway Alpharetta GA 30004 USA P 770 587 3238 F 770 587 4731 T 800 255 2923 info enervex com www enervex com 010 4150 0720 07 21...

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