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- Installation, Operation And Maintenance Instructions Manual
Venmar ERV5000-10000 Installation, Operation And Maintenance Instructions Manual
Summary of ERV5000-10000
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©2008 venmar ces inc. Aston-built products custom-built dedicated outdoor air systems installation, operation and maintenance instructions manual capacities: 1,000 to 300,000+ cfm model: energypack ® , erv5000–10000 (indoor/ outdoor), hrv3000–10000 (indoor/outdoor).
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Table of contents nomenclature.......................................................................................................................................................................3 safety.Considerations...................................................................................
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Nomenclature ©venmar ces inc. 2008. All rights reserved throughout the world. Illustrations cover the general appearance of venmar ces products at the time of publication and venmar ces reserves the right to make changes in design and construction at any time without notice. ™® the following are tra...
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1. Frost control d – recirc defrost 1 e – exhaust only 2 v – vsd frost prevention n – non-defrost 3 3. Sensor contacts d – dirty filter contacts w – wheel rotation sensor b – dirty filter contacts and wheel rotation sensor x – no contacts, no sensor 9. Exhaust discharge e – end exhaust discharge t –...
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1. Frost control d – recirc defrost 1 e – exhaust only 2 v – vsd frost prevention n – non-defrost 3 3. Sensor contacts d – dirty filter contacts w – wheel rotation sensor b – dirty filter contacts and wheel rotation sensor x – no contacts, no sensor 9. Supply discharge d – down supply discharge e – ...
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1. Frost control d – recirc defrost 1/4 e – exhaust only 2/4 f – face and bypass 3 t – traversing defrost 4 n – non-defrost 5 3. Energy recovery p – poly core 10 a – aluminum core h – hm core 11 9. External disconnect f – fused disconnect switch 15 n – non-fused disconnect switch 15 x – no disconnec...
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1. Frost control d – recirc defrost 1/4 e – exhaust only 2/4 f – face and bypass 3 t – traversing defrost 4 n – non-defrost 5 3. Energy recovery p – poly core 10 a – aluminum core h – hm core 11 9. External disconnect f – fused disconnect switch 15 n – non-fused disconnect switch 15 x – no disconnec...
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Safety considerations warning, caution and important notes appear throughout this manual in specific and appropriate locations to alert installation contractors, maintenance or service personnel of potential safety hazards, possible equipment damage or to alert personnel of special procedures or ins...
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Unit.Inspection.On.Arrival inspect the equipment exterior and interior for any dam- age that may have occurred during unit shipment and for shipped loose parts. Ensure there is no damage to any protruding exterior components such as door handles, disconnect switch handle, etc. Or to internal compone...
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Roofcurbs.Supplied.By.Venmar.Ces.(external.Applications.Only) roofcurbs supplied by venmar ces should be mounted as follows: • the roofcurb is shipped knocked-down with assem- bly hardware and instructions provided. The roofcurb must be field erected, assembled and set in place by the installing con...
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Rigging,.Lifting.And.Assembling rigging, lifting and assembling equipment all rigging equipment and labor (as applicable) is provided by the installing contractor as detailed below. It is highly recommended that extra quantities of all items listed be on hand. The rigging procedure and/or equipment ...
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Unit or unit sections shall be lifted by cables attached to all the lifting lugs. Consult the mechanical drawings located in the pocket of the control panel for the number of lift- ing lugs, number of sections and unit weight. For multi- section (modular) unit check for additional lugs located betwe...
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Assembling.A.Multi-section.(modular).Unit special attention must be taken to ensure that a multi- section (modular) unit has an air and water-tight seal at every section split. Follow the next set of instructions for assembling a multi-section (modular) unit. 2. For a horizontally split indoor unit ...
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Per procedure #2 above before proceeding. Use ½” [13 mm] wood shims on outer sides to properly posi- tion and to prevent movement when pulling multi- section (modular) unit together when mounted on a roofcurb. Remove the yellow lifting lugs located on the section joints (if any) from the second sect...
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8. Use tools (chains, chain blocks, chain type come along, etc.) connected to the side lifting lugs (attached to the base) on both sides of the unit to pull the second or next section to the first end section evenly until both sections are ¼” [6.4 mm] apart on the full joint perimeter as in figure 9...
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10. After two sections are assembled, verify that the assem- bly is level and square. If an adjustment is required, make certain to address it immediately, not at the end of the final assembly. 11. If multi-section unit has more than two sections, follow steps 2 through 9 for each additional section...
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14. All lifting lugs removed on the exterior of the base for pulling sections together must be returned or if not desired the bolts must be set back in place. Once removed, the bolts must be returned and sealed with clear silicone based sealant for water-tightness. All other lifting lugs from the un...
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Field.Fabricated.Ductwork on outdoor bottom vertical duct connections, support all ducts to the roofcurb and building structure. Do not sup- port ductwork from the unit. See figure 14a for a curb mounted outdoor unit. Sug- gested methods of attaching ductwork to bottom of out- door unit are as follo...
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A pressure loss greater than its ”handbook” value and must be included in the external static pressure calcula- tions. Consult the amca fan application manual publica- tion 201 for recommendations and system static pressure losses. The ventilation system should be designed according to maximum airfl...
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Electrical field connections shipped loose sensors, items or remote control wiring can be located next to the power feed cable provided it is inserted in shielded cable that will protect it from elec- tromechanical interference. Ensure the power feed cable ground is securely connected to the termina...
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Condensate.Drain.Trap.And.Lines cooling coils, humidifiers, sensible heat exchangers or other options that can produce condensation are provided with a drain pan with a 1¼” [32 mm] mpt (male pipe thread) drain connection. A drain trap and condensate line of equal size must be field provided by the i...
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6. Check that the air filters are installed and clean. Replace if necessary. See appendix f for optional downstream high efficiency hepa filter installation (if supplied). A. Check all face mounted filters are attached with four clips each. B. Check each sliding filter has a retainer at the end trac...
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Start-up.Procedure to ensure proper operation of each unit, qualified person- nel should perform the start-up as outlined below (based on options included with unit) and complete the start-up report and checklist in appendix e for permanent record. A completed report and checklist will provide valua...
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The temperature difference between entering and leaving water. In cooling mode, the tem- perature difference should be approximately 1.5 times greater than the heating mode tempera- ture difference. For example, if the cooling tem- perature difference is 15°f [8.3°c], the heating temperature differe...
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If the unit has been in operation before the air balancing, ensure the unit filters are clean or include pressure drop readings across the filter banks with the report. Refer to appendix d for gas-fired furnace module air bal- ancing information. The installation is to be adjusted to achieve the air...
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This range, please consult venmar ces for recommended lubrication schedules. Use a premium quality lithium based grease conforming to nlgi grade 2 or 3 (examples are: mobil – mobilith aw2, chevron – amolith #2, texaco pre- mium rb, shell alvania #2). Wheel bearing set screws bearing set screws and m...
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2. Remove the belt tensioner retaining screw and set aside (see figure 19). 3. Remove belt tensioner and discard. Install new belt tensioner (contact venmar ces tech support at 1-866-4-venmar for parts using description and unit serial number). 4. Ensure that the new belt tensioner line is aligned w...
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Wheel media periodic checking of the media, rim, spokes and shaft is very important in maintaining optimal performance of the wheel. To check the media, the wheel must be shut down. The media should be checked for tightness at start-up, after the first 30 days of operation, then by three month inter...
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Flat.Plate.Heat/enthalpy.Exchangers venmar ces offers four types of plate heat/enthalpy ex- changers. They are factory installed and ready to use upon receipt. Based on long experience, dirt buildup inside the plate heat exchangers installed in air handling equipment is not expected, provided the ai...
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Refrigerant.Systems compressors scroll type compressors are the most common type of compressor used by venmar ces. Other types of compres- sors are available upon request, if required. Maintenance and service on compressors must be com- pleted by a licensed service mechanic. Provincial or state regu...
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Evaporator, thereby preventing the return of liquid refrig- erant to the compressor. By being responsive to the tem- perature of the refrigerant gas leaving the evaporator and the pressure in the evaporator, the thermostatic expansion valve can control the refrigerant gas leaving the evapora- tor at...
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Belt.Driven.Fans belt driven fan, motor and drive assemblies should be checked and inspected at regular intervals per the inspec- tion list and procedures below. Listen for vibrations or unusual sounds. Severe damage, premature failure and loss of airflow can be avoided by regular inspection and mai...
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Span. Apply force on the plunger until the bot- tom of the large o-ring is even with the top of the next belt or until it is even with a straight f. Read the force scale under the small o-ring to determine the force required to give the needed deflection. G. Compare the force scale reading in step f...
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Fanwall ® .Array maintenance schedule fanwall array of multiple direct driven plenum fan and motor “cubes” are equipped with permanently sealed bearings and do not require lubrication. The following maintenance schedule is recommended. Monthly • check the fan wheel to inlet cone alignment for pos- s...
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5. After removing the motor pedestal retaining bolts, slide the motor/fan/pedestal assembly out to the point where the motor lifting ring is clear of the cube frame enough to use. If a mechanical device is avail- able for use, attach it to the motor lifting ring. Lift and remove the motor pedestal w...
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10. Check the inlet cone alignment to the fan wheel. Fan wheel should not be rubbing against the fan inlet cone when rotated by hand. The fan wheel to inlet cone clearance should be approximately 1/16” gap and the overlap should be as indicated in appen- dix m for the fan wheel size. Adjust the over...
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4. Gently rotate the fan wheel to verify location of ad- justment required. 5. To make adjustment, loosen (do not remove) all the cone retaining fasteners. 6. Using a rubber mallet, gently tap around the cone until desired clearance is acquired between fan wheel and inlet cone. 7. Gently rotate the ...
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Blank-off plate (if applicable) 1. Optional blank-off plate(s) are available so that main- tenance staff can block the intake of a single fan to prevent back flow until service on an inoperative as- sembly can be performed or it can be mounted on spare fanwall ® cube(s) until they are required to be...
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Motors motors will operate effectively for years if they are kept clean, dry and properly lubricated. An excessive running current is a good indication of the overall condition of the motor. Check the following items every six months (unless otherwise indicated) for proper performance: • motors must...
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Cleaning procedure 1. Shut down the unit by closing the main disconnect at the power inlet. 2. Open panels or doors to gain access to both sides of the coil section. 3. Remove soft debris from both sides of the coil with a soft brush. 4. Using a steam cleaning machine, clean the leaving airside of t...
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Appendix a: roofcurb generic assembly instructions b a c standard design mineral wool mineral wool standard design wood nailer with wood nailer option 2” 2” with wood nailer option detail c detail a detail b figure a1: roofcurb assembly – energypack ® , erv5000–10000, hrv3000–10000 (outdoor units on...
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Appendix b: water source heat pump (wshp) piping, installation, maintenance and troubleshooting units have the wshp supply and return line connections for each compressor condenser set piped to the outside on the side of the casing as standard. An optional field cut floor chase is available as an op...
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Air in order to avoid unexpected high head pres- sure and poor cooling/heating performance. F. A flow balancing valve in the return water line to set the required flow rate. G. A flow measuring valve or pressure gauge/con- nections in the return water line to measure the required flow rate. H. A two...
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Periodic lockouts almost always are caused by air or water problems. The lockout (shut down) of the unit is a normal protective result. Check for dirt in the water system, water flow rates, water temperatures, airflow rates (may be dirty filters), and air temperatures. If the lockout occurs in the m...
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Parison purposes after the cleaning operation is com- plete. Suitable 2 ounce bottles are available at any drug store. 3. Inspect all system controls such as expansion valves, solenoid valves, check valves, reversing valves, con- tactors, etc. Clean or replace if necessary, remove all installed filt...
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Table b2: performance troubleshooting performance troubleshooting heating cooling possible cause solution insufficient capacity. X x dirty filter. Replace or clean. Not cooling or heating properly. X reduced or no airflow. Check for dirty air filter and clean or replace. Check fan motor operation an...
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Appendix c: positive and negative pressure trapping l x k h k = minimum 0.5” [13 mm] h = 0.5” [13 mm] + maximum total static pressure x = 3.9375” [100 mm] if unit has a 6” [152 mm] tubular steel base l = h + k + pipe diameter + insulation − x removable plug cleanout figure c1: positive pressure trap...
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Appendix d: gas-fired furnace modules installation and maintenance tubular.Gas-fired.Duct.Furnace.Module the furnace covered by this appendix is a component of a “listed” product, subject to the guidelines of applica- tion as designated by the certifying agency and outlined in the appliance manufact...
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Outdoor installation air.For.Combustion the furnace is power vented with a combustion air draft inducer/blower and needs an ample supply of air for proper and safe combustion of the fuel gas. Combustion air inlet hoods are provided in the panel on the furnace vestibule. Do not block or obstruct air ...
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Venting each furnace must be connected to a venting system to convey flue gases outside of the heated space. Refer to in- stallation codes noted above for specific requirements for the product type being installed. The induced draft fan rectangular vent connection for each furnace is factory fitted ...
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As the required vent pipe diameter. The vent termi- nal must be at least 12” [305 mm] from the exterior wall that it passes through to prevent degradation of building material by flue gases. The vent termi- nal must be located at least 1 foot [305 mm] above grade, or in snow areas, at least 3 feet [...
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Gas supply, piping and connections 1. All gas piping must conform with local building codes and ordinances or, in the absence of local codes, with ansi z223.1 the national fuel gas code and nfpa 54 in the us. In canada, installation must be in accordance with can/cga b149.1 for natural gas and b149....
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Tubes near the base in the furnace control ves- tibule. A condensate drain pan should be field provided for these applications. A condensate drain fitting is provided in the flue box. Some condensation may occur in the flue collector box with 5:1 modulating control and a ¼” stainless steel drain lin...
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Operating and safety instructions 1. See figure d8 for component locations. 2. This furnace module does not have a pilot. It is equipped with a direct spark ignition device that au- tomatically lights the gas burner. Do not try to light burners by hand. 3. Before operating, leak test all gas piping ...
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Tween burner and manifold pipe, or debris in the main burner orifice. Soft brush or vacuum clean affected areas. B. Poorly defined, substantially yellow flames or flames that appear lazy indicate poor air supply to burners or excessive burner input. Verify gas supply type and manifold pressure with ...
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Security device operation 1. A combustion air pressure switch is provided as part of the control system to verify airflow through draft inducer by monitoring the difference in pressure between the draft inducer and the atmosphere. If sufficient negative pressure is not present, indicating lack of pr...
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Venmar ces inc. 1502 d quebec avenue saskatoon, sk s7k 1v7 email: venmarservice@venmarces.Com phone: 1-866-4-venmar (1-866-483-6627) fax: 1-800-667-3716 sn sequence of operation – on/off operation fenwal.35-61.Series.Direct.Ignition.Control.With. Two-stage.Gas.Valve when system is powered up 24 vac ...
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Hf sequence of operation – two-stage operation with 2 speed controller fenwal.35-61.Series.Direct.Ignition.Control.With. Tr1.Timer.Relay.Control when system is powered up 24 vac will be applied to the ignition control (ic) terminals 24 vac/r and to the timer relay control (tr1). The ignition control...
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3. If the airflow signal is lost during operation, the control immediately de-energizes the gas valve and maintains blower operation. If the call for heat re- mains and proper airflow is not detected, and airflow fault occurs (one led flash). If proper airflow is de- tected at any time, the normal s...
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The inter-purge period another ignition trial will take place. 3. If burner fails to light or prove the flame sensor fol- lowing the two additional trials the control will go into lockout. The valve relay in the ic will be de- energized shutting of the gas valve immediately and the combustion blower...
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Table d3: led code troubleshooting led code system description actions none no power to t1 on call for heat, nothing happens. Check for open fuse or circuit breaker. Check for poor wiring connection. Check for failed 24 volt transformer. Steady on no operation 24 vac across terminal 24 vac/v2-gnd wh...
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Ig.Series.Drum.And.Tube.Gas-fired.Duct.Furnace.Module introduction general 1. These manuals have been prepared to assist in the installation, operation and maintenance of your duct furnace. It is good practice to know as much as pos- sible about your duct furnace before trying to install or operate ...
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2. Venmar ces warranty is void if: a. The duct furnace is not installed by a qualified heating contractor in accordance with provisions of this service manual and safe practices. B. The duct furnace was not subject to only normal use in service and was misused, neglected, al- tered or otherwise dama...
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The heat exchanger. The covers for the openings shall be attached in such a manner as to prevent leaks. 6. Seal the perimeter of the duct furnace between the outside casing and the inside of the air handler to prevent air bypassing or leakage. 7. When the duct furnace is installed in an enclosed hea...
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The trap must be at atmospheric pressure and not tied into a pressurized line or the trap will not func- tion properly. 4. Never attach drain piping to a closed drain or sewer gases may enter. 5. To function properly, a trap must always be primed. The “u” portion of the trap must be full with water....
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Overfire positive’ pressure ratings on the rating plate of the duct furnace. 17. Power venting adjustment – the flue draft should be adjusted at the damper of the induced draft (id) fan when the duct furnace is operating on high fire. 18. Gravity venting adjustment – the flue draft should be adjuste...
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Vided in the remote control cabinet and on the junc- tion box on the duct furnace for the connection of these controls (see wiring diagram). Check inside the control panel for labels indicating entry location(s) for field installed wiring and control wiring. 6. Dotted lines on a wiring diagram indic...
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The temperature settings indicated. The temperature limiting control setpoints are given below for most duct furnace installations, however refer to the wir- ing diagram. High limit 200°f [93°c] fan switch 125°f [52°c] on 90°f [32°c] off a duct furnace should never be allowed to cycle over a prolong...
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Gas line and pilot line on the duct furnace so that gas is supplied up to the automatic gas valve(s). Do not purge or bleed into the combustion chamber. Check for leaks on duct furnace piping to the automatic shut-off valves and correct. 14. On systems where high pressure regulator and relief valves...
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Dure based on the type of linkage supplied with the duct furnace. E. Set the signal generator to a midpoint then mini- mum temperature rise. Repeat step d above. F. If the afco is over the acceptable limit or if there is any burner performance problem, refer to burner linkage and low fire adjustment...
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Shut down instructions general 1. Set the burner operating switch, controls, remote panel switches, etc. To ‘off’ or to the ‘summer’ position. 2. To prevent possible gas leaks close the main manual gas valve. 3. If the duct furnace was firing at the time of shut down allow the supply fan blower to r...
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2. Inspect the stack to make certain there are no obstruc- tions. Check for carbon deposits, soot, scale or rust. 3. Inspect the condensate and drain connections and disposal systems. Check for blockage and trap opera- tion. Clean as applicable. 4. Ensure that there are no obstructions blocking the ...
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Burner linkage and low fire adjustment general 1. The procedure in this section needs to be performed only if the performance of the burner is not satisfac- tory. Refer to start-up instructions for directions on how to determine if this procedure is needed. 2. Refer to the notes in the introduction ...
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10. Verify the combustion to make sure it is clean in the intermediate range and on high fire. 11. When the duct furnace adjustment procedure is complete, start and stop the burner several times to insure proper operation. Fixed.Linkage 1. A fixed linkage is used where cam linkage conditions are not...
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B. Tighten the burner air damper quadrant at the screw in the slot so the linkage cannot move. C. Loosen the rod at one of the two ball joints on the air linkage. D. You will now have to perform the adjustment it- self. Choose the proper adjustment, depending if the damper was not opening enough or ...
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Table d6: blinking fault codes and recommended troubleshooting fault code system failure recommended troubleshooting code 1-1: low ac line voltage low ac line detected. 1. Check the relay module and display module connections. 2. Reset and sequence the relay module. 3. Check the 7,800 power supply a...
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Table d6: blinking fault codes and recommended troubleshooting fault code system failure recommended troubleshooting code 3-2: running/interlock on during standby lockout interlock powered at improper point in sequence or on in standby. 1. Check wiring to make sure that the lockout interlocks are co...
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S89.Burner.Control.Module measure flame current the s89 provides ac power to the flame sensor which the flame rectifies to direct current. If the flame signal back to the s89 is less than 0.8 µa, the s89 will shut down the system. To measure the flame current: 1. Connect a meter, set to the dc micro...
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3. If the meter reads less than 0.8 µa or reading is un- steady, recheck points under check flame sensor and igniter . Operation the s89 is powered by a 24v transformer. It operates in response to a call for heat from the thermostat. On every call for heat, the s89 performs a safe start check. If a ...
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Troubleshooting any replacement s89 must have the same or shorter lock- out timing and the same or longer delay timing as the original control. Before beginning troubleshooting, review the normal op- erating sequence of the s89. See the operation section. Then follow the steps in fig. 5 to identify ...
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Start repeat procedure until trouble free operation is obtained. S89e – 10 second max. Delay for safe start check. S89f only – 38 second max. Valve-on delay. Spark across igniter gap. Main burner lights. Troubleshooting ends. Spark stops before end of igniter timing. System runs until call for heat ...
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Appendix e: energypack ® , erv5000–10000(i/e) and hrv3000–10000(i/e) start-up form and checklist venmar ces inc. 200 rue carter st. Léonard d’aston, qc canada j0c 1m0 email to tech support: venmarservice@venmarces.Com fax: 899-319-2612 phone: 1-866-4-venmar unit identification information project __...
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Serial number: _____________________________________ table e1: pre start-up checklist checklist item check √ n/a 1 check the electrical disconnect set to the ‘off’ position. 2 check the split section joints are properly installed on multi-sectional units. 3 check that all holes that have been made b...
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Table e1: pre start-up checklist checklist item check √ n/a 12 check the heat pipe fins for any fin defects from shipping or installation. A. Remove retaining bolts on heat pipe tilt mechanism. B. Check the heat pipe flexible connection is properly attached and sealed on tilt mechanism. C. Check the...
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Table e2: start-up checklist checklist item check √ n/a 10 recheck the voltage at the disconnect switch against the nameplate and against phase-to-phase readings on three-phase with all blowers operating. If the voltage is not within 10% of rated or 2% of phase-to-phase have the condition corrected ...
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Start-up readings • allow unit to reach steady state before taking readings. • complete based on options included with unit nameplate voltage input voltage l1–l2 l2–l3 l1–l3 table e3: start-up readings – supply fan rotation correct full load amps (nameplate amps) amp draw o/l amp setting hertz rpm l...
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Serial number: _____________________________________ table e6: start-up readings – compressors full load amps (nameplate amps) amp draw after compressor has been running for 15 minutes check the following: suction pressure discharge pressure superheat liquid subcooling hot gas bypass functioning out...
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Table e7: start-up readings – wshp waterside cooling mode waterside heating mode entering temp. (°f/°c) leaving temp. (°f/°c) temp. Difference (°f/°c) entering temp. (°f/°c) leaving temp. (°f/°c) temp. Difference (°f/°c) entering pressure (psi) leaving pressure (psi) us gpm condenser 1 condenser 2 c...
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Serial number: _____________________________________ this unit has been checked out and started according with the above procedures and completed forms and is operating satisfactorily. After 24 hours of satisfactory op- eration shut down the unit and check all foundation bolts, shaft bearings, drive...
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Appendix f: hepa filter installation these instructions are for installing aaf hepa filters (11½” depth) into aaf hepa holding frames. The holding frames are available in multiple sizes and materials, but include the pn series of 30619xx-xxx, where the x’s vary with frame size and material. All fram...
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A frame bank of multiple frames, install the lower filters first so that the upper filters can rest on the lower filters. Step 3 place a latch so that it overlaps the leg extension, as shown below in figure f6. Align the latch’s cap screw with the threaded coupling on the end of the leg extension an...
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Appendix g: electric heating coil and controls information this electric heating coil module covered by this appen- dix is a component of a “listed” product, subject to the guidelines of application as designated by the certifying agency and outlined in the appliance manufacturer’s in- stallation an...
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3 – operating electric coil heaters 3.1.Minimum.Airflow ensure that sufficient airflow as marked on the nameplate is passing through the heater. Airflow should be evenly dis- tributed across the entire face of the heater. Use air turning vane at duct elbows and splitter damper at duct branch- offs t...
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Appendix h: extended dormant unit maintenance procedure the following procedures must be applied to any unit which is stored for a period exceeding one month, which are required in order to maintain our warranty. Failure to comply with the procedures outlined below may result in damage and will void...
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Table h1: extended dormant unit maintenance checklist item description yes no 1 is the unit stored indoors in a clean, dry environment? Is the unit storage facility temperature regulated to within 50°f to 75°f? Is the indoor storage facility humidity regulated to within 10% to 50% rh? 2 is the unit ...
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Serial number: _____________________________________ table h1: extended dormant unit maintenance checklist item description yes no 5 refrigerant pressure every three months date psig date psig date psig compressor 1 compressor 2 compressor 3 compressor 4 compressor 5 compressor 6 compressor 7 compre...
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Appendix i: energypack ® , erv5000–10000 and hrv3000–10000 maintenance summary chart table i1: maintenance summary chart – energypack, erv5000–10000, hrv3000–10000 item no. Description note monthly quarterly semi- annually annually general 1 inspect the general condition of the unit. X 2 remove any ...
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Appendix j: measuring and adjusting v-belt tension table j1: measuring v-belt tension v-belt cross section small sheave diameter range (inches) recommended deflection force (lbs) initial installation retensioned maximum minimum a 3.0 to 3.4 3.6 to 4.2 4.6 to 6.0 3.3 3.5 3.7 2.9 3.1 3.3 2.2 2.4 2.5 b...
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Appendix k: energy recovery wheel multi-link drive belt instructions how to measure, assemble and install how.To.Measure pull belt tight around sheaves to check hand tight length, overlap- ping the last two tabs with two holes in matching links as shown. Count the number of links and remove one link...
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Appendix l: fan bearing lubrication schedule table l1: recommended grease quantity shaft size maximum grease capacity of bearing chamber inches millimeters ounces kilograms 0.50 to 0.75 13 to 19 0.125 0.004 0.875 to 1.187 25 to 31 0.375 0.011 1.25 to 1.50 32 to 38 0.625 0.018 1.687 to 1.937 43 to 49...
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Appendix m: fanwall ® inlet cone alignment table m1: fanwall wheel/cone alignment dimensions wheel size backplate od blade width backplate extension wheel/cone overlap 10 10.375 3.495 0.700 0.250 12 12.500 4.280 0.700 0.250 14 13.750 4.720 0.700 0.250 16 16.750 5.760 0.700 0.250 20 20.451 6.990 0.70...
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Appendix n: filter resistance and latches table n1: prefilters depth nominal size capacities (cfm) resistance @ capacity (in. W.G.) medium high medium high final 2” [51 mm] 12” x 24” x 2” [305 x 610 x 51 mm] 24” x 24” x 2” [610 x 610 x 51 mm] 500 1,000 1,000 2,000 0.08 0.08 0.28 0.28 0.90 0.90 4” [1...
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Appendix o: troubleshooting table o1: troubleshooting – energypack ® , erv5000–10000, hrv3000–10000 general symptom possible cause corrective action air supply too cold. Supply and exhaust air are unbalanced. Check filters and enthalpy wheel for blockage. Balance flow of supply and exhaust air so th...
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Table o1: troubleshooting – energypack ® , erv5000–10000, hrv3000–10000 general symptom possible cause corrective action filters are out of filters rack. Filters are too dirty and have been sucked into the unit. Clean or change the filters and consider revising mainte- nance schedule. Filters are we...
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Appendix p: adjusting refrigerant charge adjusting the refrigerant charge of a system in the field must be based on determination of liquid sub-cooling and evaporator superheat. On a system with a txv liquid sub- cooling is more representative of the charge than evapora- tor superheat but both measu...
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3. The system is undercharged if the superheat is too high and the sub-cooling is too low 4. Correct an undercharged system by adding refriger- ant to the system to reduce superheat and raise sub- cooling. 5. If the sub-cooling is correct and the superheat is too high, the txv may need adjustment to...
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©2008 venmar ces inc. Vces-aston-iom-1d march 2014 the manufacturer has a policy of continuous improvement and reserves the right to change design and specifications without notice. Fanwall technology ® and fanwall ® are trademarks of huntair, inc. Products in this literature are cov- ered by one or...