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Apriaire 800 Installation & Maintenance Instructions Manual

Steam humidifier
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Installation & Maintenance Instructions

Table of ConTenTS

Safety Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Materials list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Principles of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Sequence of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Specifications & Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Choosing a Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
- Dispersion Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
- Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Prepare Humidifier for Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Install Steam Dispersion Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mount Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Model 800 Steam Humidifier
ReaD anD SaVe THeSe InSTRUCTIonS
Model 800 Steam Humidifier
Install Steam Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Supply Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Drain Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Automatic Digital Control and Control Wiring . . . . . . . . . . . . . . . . 11
Electrical Power Wiring & Shut-off Switch . . . . . . . . . . . . . . . . . . 12
Start-up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Shut Down Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Display Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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Summary of Contents for Apriaire 800

  • Page 1: Table Of Contents

    Model 800 Steam Humidifier Model 800 Steam Humidifier Installation & Maintenance Instructions Table of ConTenTS Safety Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Install Steam Hose .

  • Page 2: Safety Cautions

    SafeTy CaUTIonS CaUTIon aTTenTIon InSTalleR Read this manual before installing. This product must be installed by qualified HVAC and electrical contractors and in compliance with local, state, federal, and governing codes. Improper installation can cause property damage, severe personal injury, or death as a result of electric shock, burns, or fire. Read all cautions and instructions.

  • Page 3: Principles Of Operation

    Model 800 humidifier one week or more of operation to reach rated capacity, especially if it is wired to operate on 120 volts. when operating on 240 volts, the Model 800 usually will reach nominal capacity within a few hours, even with lower conductivity water.

  • Page 4: Sequence Of Operation

    Table 1 – water Quality Guidelines Conductivity (uS/cm) estimated grains/gallon Hardness (prior to any of water connected to (prior to any water Canister behavior Solution water softening) humidifier softening) Humidifier does not Installation not 0-125 Naturally Soft function . recommended . Power with 240VAC, use 125-300 Naturally Soft...
  • Page 5 SPeCIfICaTIonS & DIMenSIonS (ConTInUeD) fIGURe 2 – Humidifier & Dispersion Tube Dimensions 3" Mounting Plate 8 7/8" to first opening 1 3/4" Fill Cup 7 7/8" 3" sq 3 3/8" 1 5/8" 1" dia 3 3/8" 4 1/4" 8 1/4" 5 3/4"...

  • Page 6: Installation Instructions

    AC calls and use the blower activation feature to allow the humidifier to run with the blower only . Call Aprilaire Tech Support at 1-800-334-6011 for additional information on absorption .
  • Page 7 InSTallaTIon InSTRUCTIonS (ConTInUeD) Table 3 – absorption Distance (Minimum distance from dispersion tube downstream to any obstruction or bend in duct) 70°f & 30% RH Humidifier 70°f & 45% RH 65°f & 45% RH 45°f & 45% RH airflow Velocity* output (gal/day) Setpoint Setpoint...
  • Page 8 InSTallaTIon InSTRUCTIonS (ConTInUeD) elevation (continued) fIGURe 4 – Dispersion Tube Mounted below Humidifier If the dispersion tube must be mounted below the humidifier or if the steam hose needs to run up and over an obstruction, a drip Drip tee installation for 90°...

  • Page 9: Humidifier

    InSTallaTIon InSTRUCTIonS (ConTInUeD) Table 4 – Steam Humidifier Capacity in Gallons/Day Steam 120 Volts 208 Volts 240 Volts Hose or 11.5 amps 16.0 amps 11.5 amps 16.0 amps 11.5 amps 16.0 amps Insulated Pipe Steam Insulated Steam Insulated Steam Insulated Steam Insulated Steam...

  • Page 10: Prepare Humidifier For Mounting

    InSTallaTIon InSTRUCTIonS (ConTInUeD) PRePaRe HUMIDIfIeR foR MoUnTInG Unpack carton . Open front panel by removing screw and lifting panel up and away from humidifier . Disconnect three wires from top of canister by pulling straight up . The two large wires are the electrode conductors . The smaller wire is connected to the high water level sensor . Remove canister by pulling it up and out of drain assembly .

  • Page 11: Drain Line

    . Connect “H” terminals on ADHC to “HUMIDISTAT” terminals on humidifier circuit board . The “H” terminals on the Model 62 provide a dry contact switch to energize the humidifier, if 24V is applied to the Humidistat terminals on the Model 800, the control board will be damaged .

  • Page 12: Electrical Power Wiring & Shut-Off Switch

    With factory settings, the Model 800 draws 11 .5 amps +/- 10% . Use a minimum 20 amp dedicated circuit when installing to operate at 11 .5 amps . The model 800 can be set to draw 16 .0 amps +/- 10% by repositioning dip switch #1 on the control circuit board (see figure 8) . When set to 16 amps, use a minimum 25 amp dedicated circuit .
  • Page 13 InSTallaTIon InSTRUCTIonS (ConTInUeD) wIRInG InSTRUCTIonS Install disconnect switch (not provided) between line power source and humidifier . Knock-outs for power wiring and low voltage control circuit wiring are located on the top of the humidifier . Connect power and ground wiring as shown in appropriate wiring diagram . • 2 40 VAC – figure 10 • 2 08 VAC – figure 11 • 1 20 VAC – figure 12...
  • Page 14 InSTallaTIon InSTRUCTIonS (ConTInUeD) fIGURe 10 – 240 VaC wiring Diagram NOTE: MODEL 800 IS SHIPPED FROM THE FACTORY WIRED IN MAIN POWER SWITCH THE 240 VOLT CONFIGURATION. (NOT PROVIDED) POWER N, L2 TERMINAL BLOCK POWER RELAY CONTACTS JUMPER WIRE BLK / WHT...
  • Page 15 InSTallaTIon InSTRUCTIonS (ConTInUeD) fIGURe 11 – 208 VaC wiring Diagram NOTE: MODEL 800 IS SHIPPED FROM THE FACTORY WIRED FOR 240 VOLTS. THE BLACK / WHITE WIRE FROM L1 MAIN POWER SWITCH (NOT PROVIDED) MUST BE MOVED TO THE 208 VOLT TERMINAL FOR 208 VOLT OPERATION.
  • Page 16 InSTallaTIon InSTRUCTIonS (ConTInUeD) fIGURe 12 – 120 VaC wiring Diagram NOTE: MODEL 800 IS SHIPPED FROM THE FACTORY WIRED FOR 240 VOLTS. MAIN POWER SWITCH THE BLACK / WHITE WIRE FROM L1 (NOT PROVIDED) MUST BE MOVED TO THE 120 VOLT TERMINAL FOR 120 VOLT OPERATION.

  • Page 17: Start-Up Procedure

    STaRT-UP PRoCeDURe 1 . Once the supply water, drain, steam hose, electrical power and control wiring connections are complete, make sure canister is fully seated into drain valve and three wire connectors on top of canister are secure . (High water probe wire and two interchangeable electrode wires .) 2 .

  • Page 18: Shut Down Procedure

    SHUT Down PRoCeDURe To turn humidifier off, push ON/OFF button once . Humidifier will enter four-minute drain cycle . Fill valve will open to temper drain water . The Drain light will flash green for 15 seconds then turn green for four minutes while the canister drains . Once the Drain light turns off, the drain cycle is complete and the humidifier is off .

  • Page 19: Maintenance

    MaInTenanCe CaUTIon • Allow humidifier to drain and disconnect power before servicing. • Service should be performed by a qualified HVAC technician. Inspect humidifier when servicing . • C heck system operation and inspect all plumbing connections and piping for signs of cracks or leaks. • I nspect drain line to make sure it is not blocked and has constant downward slope. Clean or replace if necessary. • I nspect steam hose to make sure it has no low spots and has constant upward slope from humidifier to dispersion tube in duct. If dispersion tube is mounted below humidifier, inspect drip tee and drain . To RePlaCe THe CanISTeR To Clean THe DRaIn ValVe Replace the canister annually and when prompted by the...

  • Page 20: Checking System Operation & Troubleshooting

    The following troubleshooting guide is intended to help diagnose and resolve general operational problems with Model 800 Humidifier . If a problem persists, call Aprilaire Tech Support toll-free at 1-800-334-6011 . Please be prepared to describe the exact nature of the problem .
  • Page 21 CHeCkInG SySTeM oPeRaTIon & TRoUbleSHooTInG (ConTInUeD) Table 6 – Troubleshooting Guide Problem Possible Cause action General operating Field-wired terminal Verify L1, N/L2 and ground connections are properly wired and appropriate voltage is present . problems . Humidifier connections . Check HUMIDISTAT and (if used) FAN PACK terminal connections are tight and properly wired . will not turn on or HUMIDISTAT terminals must be connected to an on/off device .
  • Page 22 CHeCkInG SySTeM oPeRaTIon & TRoUbleSHooTInG (ConTInUeD) Table 6 – Troubleshooting Guide (continued) Problem Possible Cause action Water is flowing down drain O-ring is not properly inserted . Remove canister and make sure O-ring is seated in groove in drain valve . while humidifier is making steam (Steam light illuminated green or yellow) .

  • Page 23: Replacement Parts

    RePlaCeMenT PaRTS Parts shown are for Model 800 Humidifiers manufactured after May 2012 (11 .5 and 16 .0 amp capability) . For parts for Model 800 humidifiers manufactured prior to May 2012, refer to Aprilaire Humidifier Replacement Parts & Price List .
  • Page 24 4990 Fill Cup Cap 4975 Membrane Switch 4991 Steam Dispersion Tube & Screws 5306 Universal Transformer, Model 800 Automatic Digital Control for Model 800 4977 Power Relay Steam Canister and O-Ring 4978 Electrode Wire (1) 5308 Transformer Terminal Block 4979...

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