Herrmidifier Herrtronic 6500 Series Manuale utente

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Herrtronic®6500 Series

Electrode Steam Humidiers

READ AND SAVE THESE INSTRUCTIONS

Installation, Operation, & Maintenance Manual

2www.herrmidifier-hvac.com Herrtronic®Model 6500

TABLE OF CONTENTS

SECTION I WARRANTY

Preface ...........................................................................................................................................................3

SECTION II UNIT OPERATION

Basic Operation..............................................................................................................................................4

What’s in the Box............................................................................................................................................4

Key Features ..................................................................................................................................................5

Engineering & Application...............................................................................................................................6

SECTION III INSTALLATION INSTRUCTIONS

Mounting.........................................................................................................................................................7

Plumbing.........................................................................................................................................................7

Steam Distribution ..........................................................................................................................................8

Wiring .............................................................................................................................................................9

Supply Power .................................................................................................................................................9

Control Circuit Connections............................................................................................................................9

SECTION IV OPERATING INSTRUCTIONS

Installation Checklist.......................................................................................................................................10

Start-up Instructions .......................................................................................................................................11

Maintenance...................................................................................................................................................12

SECTION V TROUBLESHOOTING GUIDE

Board Test Points ...........................................................................................................................................13

Unit Detected Faults: (Red Service Light On) ................................................................................................14

Non-fault Activated Problems ......................................................................................................................... 15

Wiring Diagram...............................................................................................................................................17

Exploded View................................................................................................................................................18

Parts List.........................................................................................................................................................19

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7. This Warranty gives you specic legal rights, and you

may also have other rights which vary from state to

state.

NOTE: Water quality plays a vital role in the performance

and maintenance requirement of any humidier.

Adjustments to the circuit board may be necessary based

on the incoming water quality. See pages 13-16.

Performance problems associated with water quality are

not warranty issues!

Herrtronic®Model 6500

SECTION I WARRANTY

Warranty

1. HERRMIDIFIER warrants to the buyer or any user

during the duration of the Warranty that the humidier

described in this manual will be free from defects of

material and workmanship for a period of 24 months

from install or 30 months from shipment (excludes

replaceable steam cylinder), whichever comes rst.

2. For this Warranty to be effective, this humidier must

be installed, operated and maintained in accordance

with the Installation Instructions, Operations and

Maintenance Manual(s) supplied with the humidier.

3. In the event of a defect or malfunction in this product

during the Warranty Period, user may contact the

Customer Service Department or their HERRMIDIFIER

Representative for a Customer Relations Management

(CRM) number. Items tagged (on the outside of the box)

with this number may be returned to HERRMIDIFIER

for replacement. Incidental expenses such as cost

of transporting the humidier to HERRMIDIFIER or

labor associated with removal/replacement of the

parts shall be paid by the user. Upon completion of the

reconditioning, the humidier will be returned at no cost

to the user. Items returned without a CRM number will

not be accepted!

4. Every 6500 series steam generating humidier contains

a plastic steam generating cylinder which is to be

considered a routinely disposable part to be changed

at regular maintenance intervals at the user’s expense.

This steam generating cylinder is not covered by this

Warranty. If, after the installation of your 6500 humidier,

you feel the steam generating cylinder is not operating

normally, you should contact HERRMIDIFIER with an

explanation of the problem. However, in the continuing

operation of the humidier, replacements of this part are

your responsibility as part of routine maintenance.

5. This Warranty does not cover eld labor for

repairs to this humidier or any special, indirect or

consequential damages. Some states do not allow

the exclusion or limitation of incidental or consequential

damages, so the above limitation may not apply to you.

6. If, after a reasonable number of attempts to do so,

HERRMIDIFIER is unable to remedy any defects or

malfunctions in this humidier, then the user may elect

either a replacement of such product or part which may

be defective without charge or a refund of the buyer’s

original purchase price.

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4www.herrmidifier-hvac.com Herrtronic®Model 6500

SECTION II UNIT OPERATION

Basic Operation Overview

Controlled humidication requires a very precise control

system. The Herrtronic 6500 utilizes a microprocessor

based control system to monitor performance and maintain

capacity. The humidier evaluates the operation and alerts

the operator to problem conditions and prevents undesirable

operation. (Refer to points on table below.)

1. On initial start-up or a call for humidity, the humidier will

attempt to ll to its full load amp rating. The unit will not

necessarily have a full cylinder of water when capacity is

reached. Water level depends on the conductivity of the

water. The more conductive the water, the more current

that can be passed through and will result in a lower water

level during operation. If the water is not conductive enough

to allow the unit to reach full load amps (full capacity) on

the initial ll, the cylinder full module will stop the ll valve

until the water conductivity increases. The unit will operate

in this mode with repetitive ll and boil cycles until the

unit has concentrated enough minerals in the water to

reach the rated amp level. Once full load amp (FLA) has

been reached, the ll valve will shut off. The unit will now

compare the rate of change of amp draw to a time cycle.

2. Once the water in the cylinder is mineral laden and hence

very conductive, a drain cycle will be initiated. Some or

all of the water in the cylinder will be drained to ush away

the minerals. After the drain cycle and/or the time cycle is

completed, the unit will rell and start the process over.

These cycles will repeat until:

• The call for humidity is satised.

• The cylinder is used up.

• A fault condition occurs.

3. Over a very long time, as the electrodes in the cylinder are

coated with minerals, the water level will slowly increase

to the cylinder full level. Concentration will no longer allow

the unit to reach FLA. The unit will eventually display an

“end of cylinder life” fault by blinking the LED on the front

of the unit at ½ second intervals. Replacement of the

cylinder is required at this point in order for the unit to

continue operating at its rated capacity.

Part No. Qty. Description

267460-001 1Herrtronic 6500-1

267460-002 Herrtronic 6500-2

265160-001 1 Humidistat

265160-001 1 Humidistat (Use as High Limit)

AH-297 1 Air Proving Switch

EST-1138 2 Screw, Lag 5/16 x 2” Long

EST-1563 2 Clamp, Hose, 3/4” - 1 1/2”

EST-206 12” Tubing, Clear PVC Vinyl, 1” OD

EST-207 1 Clamp, Hose SST

267949-001 1 Installation & Operation Manual

General Time of Operation

1. 2. 3.

High Drain

Threshold

Capacity

Set Point

Low Drain

Threshold

Cylinder

Full

Steadily Increase

Water Level

Water Level Output

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Faults:

Overcurrent (Solid Light)

• 138% of Rated Current

• System Shutdown

Fill System (Slow Blink)

• Fill valve open for 24 minutes without achieving

capacity setpoint or cylinder full

• System Shutdown

End of Cylinder Life (Fast Blink)

• 24 hours of operation while on cylinder full without

achieving capacity setpoint.

• System Shutdown

• Operation using water of less than 125 micro-

Siemens is not recommended.

• Typically 500-2000 hours of cylinder operation can

be obtained. Your actual cylinder life may be higher

or lower depending on the exact composition of

your water supply.

Key Features

Adjustable Setpoints (See Figure 13, Page 13)

Capacity

• Range = 50-100%

• Preset at 100%

Low Drain Threshold

• Range = 50-100%

• Preset at 80%

Cycle Time

• Range = 30-180 seconds

• Preset at 60 seconds

DRAIN

CONNECTION

DRAIN SWITCH

FAULT LIGHT

(VISIBLE THROUGH FRONT COVER)

CIRCUIT BOARD

FILL SYSTEM

(INTEGRAL 1" AIR GAP PREVENTS

REVERSE SIPHONING TO POTABLE

WATER SUPPLY; "ADJUSTABLE

METERING VALVE ACCOMODATES

WATER PRESSURES UP TO 100 PSI.")

CYLINDER - REPLACEABLE

GLASS FILLED POLYPROPYLENE

DRAIN SYSTEM

(DRAIN VALVE, ADJUSTABLE

DRAIN THRESHOLD AND CYCLE

TIME PROVIDE EXTENDED LIFE.)

FILL CONNECTION

STRAINER

Herrtronic®Model 6500

Figure 1

NOTE: These setpoints should be adjusted by a

qualied service person only.

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6www.herrmidifier-hvac.com

NOTE: The steam distributor pipe is inherently sloped to

return the condensate to the humidier.

An airow proving switch and high limit humidistat are provided

for better system control. If the heating system operates for

short periods at a time and the desired relative humidity level is

not achieved, the humidier can be wired to turn on the blower

when there is a call for humidity. (See Figure 9, page 9.) In this

case an air proving switch will not be necessary, but the high

limit humidistat should still be utilized. (See Figure 8, page 9.)

Herrtronic®Model 6500

Engineering and Application

The Herrmidier 6500 Series Steam Humidiers can be applied

in a variety of applications. The simplest application is to utilize

the steam generated by the 6500 unit to discharge it directly

into the HVAC system ductwork. In this application, a steam

pipe is preferably installed in the system ductwork at least 5

feet downstream of the supply air blower. There should be no

obstructions within the rst 5 feet downstream of the steam

distributor as shown in Figure 2. A minimum duct temperature

of 60°F is recommended. Different psychrometric conditions

may require greater or lesser steam absorption distances.

Temperatures below 60°F may cause condensation to form in

the duct. External lned duct may be used if the thickness is 1”

or less.

Note: Duct liner may be used

with a maximum

thickness of 1".

5 FEET MINIMUM

18 INCHES

MINIMUM

5 FEET MINIMUM

Figure 2

Allowable Operating Conditions

Ambient Temperature 40°F (4°C) to 120°F (50°C)

Ambient Relative Humidity 0% to 90% (non-condensing)

Line Voltage -15% to +10% of normal

Frequency 50/60 Hz

Water Supply Pressure 20psi - 100psi

Maximum Duct Static Pressure 1”

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Plumbing

To make the necessary connections for water ll and drain, the

following steps are required. (Refer to Figure 4 for locations)

1. Install external shutoff valve between the water supply and

the humidier for ease in servicing the unit.

2. Connect water supply to the 1/4” compression tting on the

bottom of the cabinet.

3. Connect the 3/4” tube from the accessory pack to the drain

reservoir. Cut the tube to the length necessary to reach the

drain.

4. Insert the other end of the tube into a minimum 6” vertical

length of the 1-1/4” minimum I.D. drain line. The balance of

the drain line should be 1” I.D. minimum with a minimum

1/8” per foot slope. (See Figure 4.)

SECTION III INSTALLATION INSTRUCTIONS

Mounting

The cabinet is designed to safely contain the working components

of the HERRMIDIFIER 6500 series humidier and dissipate

heat to protect the electronics. Locate humidier, steam pipe

and accessories in a manner to allow routine inspection and any

necessary maintenance. DO NOT install the unit above false

ceilings or around valuable property, where a malfunction could

cause damage. Correct positioning of the humidier is important

to allow for proper operation and easy maintenance. Minimum

clearance around the cabinet should be maintained as follows:

Minimum Clearances

Around Cabinet

Left 6”

Right 12”

Top 6”

Bottom 12”

1. Remove cover by removing four side screws.

2. Remove foam packing from top of cylinder.

3. Two 5/16” lag bolts are supplied with the CFS20/22 unit.

Install the lag bolts according to the dimensions in Figure 3.

4. Hang the unit on the wall and secure the bolts. Be sure the

unit is level and mounted directly to the wall into wood studs

at least 2” thick (or equivalent). Operating weight is 27 lbs.

5. Replace cover and four screws.

Figure 3 (Back View)

WARNING!

Do not mount any controls inside the unit or tap power

from any location in the unit, except as stated in these

instructions. Do not place objects near the cabinet. Do

not attach to dry wall without studs. At least one of the

5/16” bolts must be located on a stud.

FIGURE #3

(BACK VIEW)

9.00 .91

1.31

Ø .625 X .313"

KEYHOLE MTG. SLOT

T Y P. 2

CAUTION!

Do not use reverse osmosis or demineralized water

treatment without rst consulting the factory. This

water may not be sufciently conductive to allow proper

operation. Consult factory if water is outside the range

of allowable conductivities (125-1250 micro-Siemens).

Do not use hot water.

Herrtronic®Model 6500

WARNING!

If the drain line is exposed, it is recommended that it be

insulated for safety. Do not use PVC drain line unless

“Drain Tempering” is enabled.

NOTE: Inlet water pressure must be in the range of

20-100 psig. Consult the factory if you are outside this

range. Softened water may be used but requires that

the low drain threshold be adjusted.

DRAIN LINE TO BE 1" MIN. I.D. TERMINATING

AT THE UNIT WITH 6" OF 1 1/4" I.D. VERTICAL

PLUMBING.

THIS ALLOWS AN AIR GAP BETWEEN THE

1" O.D.

DRAIN TUBE FROM THE UNIT AND THE DRAIN.

1/4" O.D. COPPER OR

POLY TUBE WATER FILL LINE

3/4" MIN. I.D./1" MAX O.D.

FLEXIBLE DRAIN CONNECTION

6" MIN. LENGTH OF 1-1/4" MIN. I.D.

COPPER LINE. IF PVC IS USED OR LOCAL

CODES REQUIRE A LOWER TEMPERATURE

BALANCE OF DRAIN LINE TO BE 1" MIN. I.D.

WITH A MINIMUM PITCH OF 1/8" PER 12" OF RUN

DRAIN RESEVOIR

DRAIN WATER, ENABLE DRAIN TEMPERING.

4" RECOMMENDED

RECOMMENDED

Figure 4

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8www.herrmidifier-hvac.com

Distributor Mounting Instructions

Sheetmetal Duct:

Make a 1-1/4” hole in the duct at desired location. Insert duct

distributor and secure with self tapping sheetmetal screws

(supplied by others).

Fiberboard Duct:

Make a 1-1/4” hole in the duct at desired location. Insert duct

distributor and mark the four holes on ange. Drill holes at

marked locations. Fasten distributor with bolts (supplied by

others).

Steam Distribution

HERRMIDIFIER supplies a stainless steel duct distributor for

injecting pure steam into the duct. This can be installed in the side

(recommended) or the bottom (alternate) of the duct. (See Figure

5.) When installing in the side of the ductwork, make sure the unit

is positioned to allow condensate to drain back down the steam

hose to the steam generator. The duct distributor pipe has a built-

in pitch to allow condensate to drain back into the hose. The hose

must be installed with a minimum 8% (1” per foot) pitch back to the

humidier to allow condensate to drain back to the steam cylinder.

(See Figure 5.) The steam hose may be used up to a maximum of

10 feet between the unit and the steam distributor. (Additional hose

may be required.) There can not be sags in the steam hose, as

this will create a trap and will produce back pressure in the steam

cylinder and may blow condensate in the duct. (See Figure 6.)

VERTICAL DUCT

HORIZONTAL DUCT

MIN. 8%

10.00 MIN.

(254 mm)

NO SAGS

ALLOWED

Herrtronic®Model 6500

HORIZONTAL DUCT

INCORRECT

NO SAGS ALLOWED

Note: Internally lined duct should be removed in the

steam evaporation zone.

Figure 5 Figure 6

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Wiring

All eld wiring should be routed up through the holes in the

bottom panel or in the back of the unit.

Figure 7 (Bottom View)

Supply Power

1. Ensure that minimum circuit amperage capacity is 15 amps.

2. Terminals are provided in the electrical compartment for

eld connection of the main power supply legs (single

phase) and a ground wire.

3. Install external overcurrent protection and provide wiring in

accordance with the NEC, state and local codes.

4. Power supply must be “clean”: free of spikes, surges and

sags: -15% to +10% of nominal.

Electrical Characteristics:

Model 6500-1 6500-2

lbs/hr 4 8

kg/hr 1.8 3.6

Voltage 115 230

Amps 11.5 11.5

kW 1.33 2.66

BOTTOM VIEW

1.56

.75

Ø.88 THRU HOLE

2.37

Herrtronic®Model 6500

Control Circuit Connections

WARNING!

Do NOT install any controls inside the HERRMIDIFIER

6500 cabinet. Installations of any extraneous devices

inside the electrical compartment may cause erratic

behavior of the circuitry and will VOID the warranty.

The control wiring for the humidier is to be connected to

the controls wiring terminal strip located in the electrical

compartment. Terminals #1 and #2 are to power an electronic

humidistat (24 VAC). Terminals #3 and #4 are to connect the

control and high limit humidistat (included). Terminals #5 and

#6 are to connect air proving switch (included). All control wiring

should be 22 AWG or larger. (See Figure 8.) Consult with the

factory if you have any special wiring requirements.

Figure 8

Figure 9

THERMOSTAT

TERMINALS

267575-001

AUXILARY RELAY

INSIDE CABINET

AIR PROVING SWITCH

(INCLUDED)

CONTROL WIRING

HIGH LIMITCONTROL

HUMIDISTAT

(INCLUDED)

HUMIDISTAT

(INCLUDED)

TERMINALS FOR POWERING

ELECTRONIC HUMIDISTAT

24V HOT

24V COM.

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10 www.herrmidifier-hvac.com Herrtronic®Model 6500

Installation Checklist

NOTE:

The HERRMIDIFIER 6500 Humidier checklist is provided to help the installer ensure a successful installation. If further

assistance is needed from the HERRMIDIFIER representative or the factory, the checklist is expected to be completed. If

a job site visit is required from the HERRMIDIFIER representative or the factory, and the checklist has not been accurately

completed, additional charges may be applied by the individual(s) representing HERRMIDIFIER. If the visit uncovers a

component malfunction, the parts will be replaced under warranty.

_____________________________________________ ____________________________________________

Project Name Checklist completed by

_____________________________________________ ____________________________________________

Humidier Installer (Company) Checklist completion date

DRAIN RESERVOIR

BALANCE OF DRAIN LINE TO BE 1" MIN. I.D.

DRAIN WATER TEMPERATURE IS SUITABLE FOR PLUMBING.

3/4" MIN. I.D./ 1" MAX. O.D.

FLEXIBLE DRAIN CONNECTION

6" MIN. LENGTH OF 1 1/4" MIN. I.D. VERTICAL COPPER LINE.

IF PVC IS USED, ADD DRAIN TEMPERING.

DURING FILL CYCLE, CHECK TO SEE IF ANY WATER

IS DRAINING FROM UNIT. A LOT OF WATER FLOWING

OUT OF THE UNIT WOULD INDICATE EXCESSIVE

WATER PRESSURE. TURN OFF POWER AND REDUCE

THROUGH METERING FILL SOLENOID OR SUPPLY

VALVE TO HUMIDIFIER. A SMALL AMOUNT OF WATER

IS NOT UNCOMMON.

MAKE SURE ALL HIGH VOLTAGE

ELECTRICAL CONNECTIONS

ARE TIGHT, 15-20 IN-LBS.

POWER SUPPLY:

1. MATCHES DATA PLATE

2. IS PROPERLY GROUNDED

3. CAN CARRY AT LEAST 15 AMPS

4. EXTERNAL FUSED DISCONNECT

PROVIDED BY OTHERS.

SUPPLY WATER (POTABLE)

NO UNTRAPPED LOW SPOT

IN STEAM SUPPLY

AIR FLOW IS HORIZONTAL OR VERTICAL

LOW VOLTAGE TERMINAL STRIP:

1. HUMIDISTAT/HIGH LIMIT HUMIDISTAT

2. AIR PROVING SWITCH

3. 24VAC CONNECTION TO HUMIDISTAT (IF REQ'D)

Figure 10

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