Tài liệu Packaged Hydronic/ steam make-up Air System pptx

General Information ...2 Preliminary Installation Procedures...3 Installation Procedure ...5 Hoisting Eye Installation ...5 Ductwork Installation ...5 Ceiling Register Installation...5 W

owner’s manual Packaged Hydronic/Steam

Make-up Air Systems

A Division of:

14716 S Broadway, Gardena, CA 90248 • Tel: (800) 421-1266 • (310) 532-1555 • Fax (310) 324-3030

Internet: www.marsair.com • Email: aresinfo@marsair.com

ARES products meet the stringent listing or certification requirements of many organizations.

The specifics vary depending on the model, options installed or application usage ARES reserves the right to make improvements and changes to specifications without notice.

General Information 2

Preliminary Installation Procedures 3

Installation Procedure 5

Hoisting Eye Installation 5

Ductwork Installation 5

Ceiling Register Installation 5

Water Installation 6

Electrical Controls 7

Coil Assembly 8

Optional Accessories 9

Trouble-Shooting Chart 11

ARES Preventative Maintenance Procedures 12

Wiring Diagrams 13

Parts List 16

Service and Ordering Information 17

Limited Warranty 18

Owner Registration 19

Warranty Registration 20

GENERAL INFORMATION

TO INSURE PROPER OPERATION AND MAINTENANCE OF ARES MAKE-UP AIR SYSTEM, PLEASE READ AND UNDERSTAND THIS MANUAL THOROUGHLY

Where necessary, the following information will be indented and paraphrased

NOTE: Information pertaining to special instructions regarding the care and use of the ARES

Make-up Air System

immediate or future damage to the ARES Make-up Air System.

bodily injury for which ARES will accept no responsibility.

All information illustrations and specifications contained in this manual are based on the latest product information available at the time of printing ARES reserves the right to make changes at the time, without notice, in specifications and models and also to discontinue models ARES also reserves the right to change any specifications or parts at any time without incurring any obligation to provide the same on models manufactured prior to date of such change

The continuing accuracy of this manual cannot be guaranteed

Preliminary Installation Procedures Executed by the Installing Contractor

All code requirements should be addressed and understood

1 Local authorities have jurisdiction over all codes Make sure all drawing have been reviewed andapproved before attempting installation

2 Most codes require a minimum separation between any make-up air units and ventilator exhaustfans, plumbing stacks, and any other equipment where unwanted odors or materials may be drawninto the system Insure these minimum separations are maintained

3 Make sure all electrical rough-ins, disconnects and power supplies are installed according to localjurisdiction

4 Make sure plumbing is clearly understood and according to local codes

5 Some areas require seismic restraints to be applied when Make-Up Air Units are installed Checkwith local authorities to make sure these applications are in compliance

6 Refer to the installation section to determine the operating weight of the ARES unit being installed.Check with person responsible for determining roof loads prior to setting this equipment

The following items should be discussed with the installing contractor Make sure all loose items are accounted for prior to installation.

1 If items are found missing, contact ARES Service Department immediately at (800-421-1266)

2 Make sure all electrical service requirements are fully understood prior to installation procedure

3 Make sure all plumbing service requirements for incoming gas piping are understood prior toinstallation

4 Make sure all field joints for ducting are fully understood prior to installation

5 Recheck equipment for any damage when may have occurred prior to installation Any notedproblems should be reported to ARES Service Department immediately at (800-421-1266)

6 Make sure all clearances noted in the installation procedure are complied with when equipment isbeing placed

clearance for removal and service.

7 Make sure hoisting equipment is of sufficient size to adequately lift equipment into place duringinstallation

THE FOLLOWING ITEMS SHOULD BE DISCUSSED WITH THE SHEET METAL CONTRACTOR

1 Make sure all duct size and layout procedures are fully understood

2 Make sure turning vanes are installed wherever necessary

3 Make sure gauge thickness for ducting complies with local code requirements

LISTED BELOW ARE GUIDELINES AND CHECKS WHICH SHOULD BE ADDRESSED BY THE JOB SITE ELECTRICIAN.

1 Check equipment nameplate power requirements against electrical details supplied to insureconformity

2 Insure building power supplies conform to equipment requirements and electrical drawings

3 Check all inner connecting wires between control panels fill and drain kits, and power supplies tomake sure drawings are completely understood

4 Insure all loose items such as remote controls and thermostats are on site and wiring isunderstood

5 Make sure all field connections are noted prior to installation

PLUMBERS GUIDELINES TO AID IN INSTALLATION

Make sure all gas piping is sized and understood to maintain code conformity.

ROOFERS GUIDELINES TO AID IN INSTALLATION

A discussion should be held with the people responsible for setting and locating the roof curbs used to support the ARES duct furnace.

The following items should be check prior to placement.

1 Make sure curbs are installed according to local codes

2 Insure service accessibility around all areas as defined in the installation procedure

3 Make sure a type of roof is identified and procedures necessary to complete curb installation areunderstood

4 Make sure necessary clearances between ducting and combustible materials per local codes arefollowed

5 When optional down discharge plenums are incorporated as part of the roof curb, make sure theroofer consults the ARES submittal drawings for correct size of roof penetration openings

6 Make sure roof will support total operating weight of the unit

HOISTING EYE INSTALLATION

Remove the blower pad frames

Position the hoisting eyes on corners of the unit with the angle towards thecenter of the unit (See illustration at right)

Run the bolt through the unit housing and hoisting eye, then attach the nut

(See illustration at right)

DUCTWORK

1 Sizing and layout of ductwork and outlets should provide maximum uniform airflow throughout thearea Make-up air should be introduced at a location inside the area, but as far away from existingexhaust hoods as possible to permit conditioned air to flow throughout the entire area beforereaching the exhaust zone, or unless connected to an engineered make-up air system

2 Ductwork must be adequately sized anddesigned for minimum resistance (staticpressure) to provide required airflow Checkrating plate for minimum allowable CFM flowover the heat exchange: at low heatingspeed

3 To avoid pressure losses, all short radiusrectangular elbows should have turningvanes, offsets should not be avoided, andsmall ducts and takeoffs should beundersized

4 Main supply duct normally consists of arectangular vane elbow at the unit andvertical duct extension, both pieces havingthe same dimensions as the unit dischargeopening The ductwork gauge size must beaccording to local codes Ceiling registersshould be the fixed type (if adjustable, modify

so full closing is not possible) (Seeillustration right)

CEILING REGISTER

With the make-up air unit in place on the floor, and the framed roof opening installed:

1 Position roof jack over the opening

2 Caulk and attach the transition elbow to the unit with a flexible connection

3 Push the extension duct up until it slides through the roof jack into the transition elbow (the bottomflange of the extension duct should fit flush with ceiling)

4 Seal, caulk and secure into place

5 In the building, remove side grilles from the ceiling register box, center box over opening and secure

6 Protect outdoor ductwork with weatherproof insulation material

7 Any ductwork within 6 feet of unit must have a minimum of 2 inches clearance from combustiblematerials

8 This is ARES recommendation but you should always check local codes in your area

WATER INSTALLATION (with optional evaporative cooling)

Water circulated by a sump pump to troughs above the cooling media It then flows by gravity through

“V” shaped slots and saturates the cooling filters A float valve assembly replaces water lost by evaporation To avoid build up of organic minerals and salts in the sump, an adjustable bleed-off valve directs a small stream of water through the overflow drain An optional fill and drain kit, which consists

of a 3-way valve, 2-way valve and relay itemized for freeze protection of the Make-up Air Unit water line,

is available for field installation.

bleed-off pipe is not covered by the ARES warranty.

The following is a brief outline of the evaporative cooling installation procedure.

1 To install use an inside cold water line that has not passed through a water softening systembecause salts will create additional maintenance and upkeep

2 Install a 1/2" water piping to the right front support leg of the unit Include a convenient shut-offvalve and provisions for draining to prevent freezing in the piping layout

3 Install the overflow standpipe in the sump drain

4 Install a drain line between the overflow standpipe (in the sump drain) to a suitable drain (checklocal codes)

5 Install the float valve assembly and adjust it so the water level is approximately 2" deep in the sumppan (See illustration below)

by the ARES warranty.

6 Install the float valve and adjust the bleed valve to bypass the main water line to rid the system oforganic and mineral deposits (See illustration above)

ELECTRICAL CONTROLS

COOL Actuates blower motor relay and (optional) pump relay if evaporative cooling is

purchased

VENT Actuates blower motor relay only

HEAT Actuates blower motor relay and (optional) steam valve motor with proportional control

If optional steam valve/liquid valve and control are not ordered, a dry set of contacts will

be provided to allow signaling of an external control by others

HI-LO Actuates either high or low blower motor relay dependent upon selected(Optional) switch position

RETURN AIR Actuates damper for outside air or recirculates inside air

(Optional)

For Hot or Cold Water

1 Furnish CFM, external static pressure, entering air temperature, leaving air temperature, watertemperature, GPM (optional), percent glycol solution (if applicable)

2 Select options

Control Valve COIL CAPACITIES AND STANDARD FEATURES

* Other pressures and temperatures can be furnished Please consult factory

** This design prevents freezing of the condensate, when a sufficient amount of steam is provided tothe coil and water is removed by trapping as fast as it is being condensed

Maximum Operating Pressure 200 PSIG * 028" Thickness Copper TubesMaximum Operating Temperature 375° F * 10" Aluminum Fins

Maximum Fins Per Inch 12 * Coils Pitched in Casing for Drainage

Maximum Operating Pressure* 100 PSIF * 035" Thickness Copper TubesMaximum Operating Temperature 338° F *.10" Aluminum Fins

Maximum Fins Per Inch 12 * Coils Pitched in Casing for Condensate

Removal

OPTIONAL ACCESSORIES

The fill and drain kit provides automatic filling and draining of the water pan on the cooling cycle anddraining on the heating cycle, by pushing the appropriate button on remote control (See illustrationsbelow)

INITIAL START-UP

1 Check electrical power and manifold pressure against the unit’s nameplate

2 Check airflow through the unit

a The adjustable motor sheave should be adjusted to provide the correct blower wheel RPM

to attain the design airflow at the inherent system resistance Do not adjust sheaves so theairflow is below the minimum shown on the nameplate

b Be certain the installation is adjusted to obtain the temperature rise specified on thenameplate

3 Check belt tension and alignment Correct tension is a center belt deflection of 1/2" and 3/4" foreach foot of belt between the pulley and sheave

motor sheave Adjust by moving electric motor along tracks provided on the motor base to obtain correct fan belt deflection.

4 Check nameplate for maximum amperage

5 With an observer at the unit, complete the following at the remote control panel:

a Assure power is on Set unit on high speed (two speed units only)

b Push “Vent” button Blower should operate

c Using an ampmeter, test motor amperage and adjust as required with adjustable sheave

Be sure load on motor does not exceed nameplate amperage rating

d Push “Cool” button Pump and blower should be in operation

e Push “Heat” button The blower will remain in operation and the steam/liquid valve will beactivated

f On two speed models, place the 2-speed toggle switch in desired (high or low) position

g Push “Off” button Unit should shut down

6 Check discharge air control for desired temperature setting (Field provided on Hydronic units.)

7 If unit is operating properly, recheck system by repeating Step 5 If unit does not function properly,refer to Troubleshooting and Service Section

TROUBLE SHOOTING GUIDE

1 If unit is inoperative, check:

a Circuit breakers

b Line fuses

c Internal fuse

d Voltage at contractors

e Transformer output 24 volt remote control switch

a Line power to pump relay

b Auxiliary transformer on units with supply voltage over 120 volts (optional)

c 24 volts on pump relay coil

d Power on load side of relay

e Visually check pump operation

f Water system obstructions

a Blower belts slipping

b Improper motor sheave setting

c Evaporator pads plugged up

d Excessive ductwork resistance

e Blower motor horsepower too low for requirements

a Adjust heating thermostats higher

b Fan switch setting too low

c Airflow too high

d Limit switch cycling

a Adjust heating thermostats lower

b Airflow too low for thermostat setting

6 If remote control is inoperative, check:

a 24 volt power to switch

b With switch set at its various positions, check output voltage per the switch action shown inthe wiring diagram on unit

7 If there is mineral buildup on evaporative pads, check:

a Insufficient bleed off water

b Bleed line plugged

c Insufficient water over pads (hardness of water may necessitate more frequent cleaningand/or pad replacement)

ARES Preventative Maintenance Procedures

STANDARD EVAPORATIVE COOLERS

Replace if necessary.Replace every 5 yrs

of season Check for operation

check for properadjustment, 2" in pan

placement in drainoverflow pipe

and adjustment

Adjust as needed Adjust as needed

Water distribution manifold

Clean and flush Be sure to turn off

water supply & drainwater from system

Clean & flush Makesure all distributionpoints are free of anyobstructions

tension & wear

Check amp draw and oil bearings

Check amp draw & oil bearings

NOTE: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 105 ∞C.

FIELD HI VOLT FIELD LO VOLT FACTORY

FACTORY LO VOLT NOTE: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 105 ∞C.

FIELD HI VOLT FIELD LO VOLT FACTORY

H1 & H2 TERMINALS ARE DRY CONTACTS THAT CLOSE DURING THE "HEAT" CYCLE.