GreenAire RAH-1000 series, RAH-1500 series Installation And Operation Manual

INSTALLATION AND OPERATION

FOR:

R

Initial items …………

Humidifier basics……

Installing humidifier

Sequence of

Typical System Diagrams

STS System Diagrams….

Wiring diagram

Trouble Shooting

Mainte

Controller info

Wet Switch ………………

Parts List …………………

More Components ……..

AH – 1000 & 1500 Series

Table of Contents

..… 1

… 2

…… 3

Operation .. 6

7
9

s …………. 12

……….. 15

nance …………… 17

………….. 18

VS.10.13

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22
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1

1. Equipment provided

: Locate all equipment provided with your order. The following

make sure to look at your packing slips and purchase orders

to determine exactly what is included in your system.

trol Panel

Control Panel only (for STS units only)

Dispersion Tube Assembly

STS (Split Tank System) Box

Reverse Osmosis system

Governing humidity sensor

Installation and Maintenance Manual

Location of the humidifier

the location shown by the Design Engineer in the Project drawings. The following

guidelines should be adhered to:

The DTA should be placed in

) feet up stream and downstream with no obstructions, branch take offs or

If a vertical section of duct is chosen make sure to slightly angle the DTA

that all condensate will pitch back to the header tube.

rule applies for obstructions as stated previously.

The Generator should be located in close proximity to the DTA. Locations

ld not be located further than 1

For the STS systems the STS Box should be located as near as possible to

the receiving air duct and DTA. The Control Panel for STS systems may be

located as far away as 40 ft. (please consult with your local Rep or Factory if

er distances are desired)

The controlling humidity sensor, if it is a duct mounted sensor, should be

located in the return air duct as long as it is a dedicated return to the same

that the humidifier

then the controlling sensor should be located

a wall mounted humidity sensor.

Service access is very important. Make sure that the Generator unit is

located with adequate clearance around the unit to service it.

is recommended for

The DTA should also be located with good accessibility.

straight section of duct work with at

g distance from the

servicing. If the humidifier has a common retur

in the space being humidified

equipment may be provided –

a. Generator Con
b.
c.
d.
e.
f.
g.

2. Humidifier location:

a.

(2
bends.

b.

upwards so

c.

shou
DTA.

d.

- including hose cuff(s)
(DTA)

including 4 gal. storage tank

, Air flow switch, Hi-limit Switch

and all its components

a

0 ft of equivalent pipin

is critical. Verify

least two

The same

long

e.

zone

is

via

f.

18”

all four sides of the unit.

g.

n

A minimum of

2

h.

The RO Water system will see the most maintenance as filters need to be

replaced annually. Mount the system on a wall where clear access is

If a High Limit Stat is included, it

Flow Switch should be mounted on the supply side (positive pressure)

side of the duct system

I) Generator and DTA Location and Piping:

the Generator and DTA within 1

using the STS system the same rule applies.

installed LEVEL! VERY IMPORTANT!

When installing the DTA make sure it is level or pitching back slightly toward

the supply pipe. Fasten all holes on the DTA flange to the bottom of th

Make sure there are no obstructions

downstream of the DTA for at least 3

Sealant can be used on the flange if desired for complete seal.

Once you have located the Generator in a clear

hose cuffs and begin installing pipe between the Generator and the DTA.

Follow the project plans for piping size but verify that they adhere to the

following guidelines:

3000 Series should utilize 4”ID or greater supply pip

2000 Series should

1000 Series should utilize

When piping try to avoid creating

the piping. If you cannot avoid doing so then

from such trap locations.

3/8”id pipe/tubing and there should be at least a 3” long nipple of ½” size off

down to create enough “head” to drain the line.

e the drain line to an appropriate drain location. Again be sure not to trap

water. If necessary employ a condensate pump/drain to elevate the drain water

and evacuate it during drain cycles.

Determine whether the system you are installing is a

system (please note that the

designates what type of application, supply side or return side, your system

is. If any questions call the Factory Representative).

If the system is a supply si

feed from a take off up stream of the DTA location (consult your Submittal

drawings for more specific information).

10

’ ft of equivalent piping distance from

Make sure the STS tank is

either up stream or

and accessible location use the

*

water “traps” or low points in

sure to plumb a mini

Drain line size must be a minimum of

supply or return air

of ‘S or R’

de installation then you must pipe in a supply air

accessible.

i.

of the DTA.

j. The Air

INSTALLATION:

should be located at least

.

’ ft. downstream

A. Locate

each other.

B. When
C.
D.
E.

F.

-

-

-

CAUTION:

the trap pointed

Pip

0

, bends, or branches

’ft in either direction.

utilize 4”ID or greater supply piping

3”ID or greater supply piping

be

(see Fig. 1 )

e duct.

ing.

.

-drain

G.

humidifier schedule column

H.

3

CAUTION: For supply air locations there must be at least .075” static

pressure availabl

static pressure then a return air location may be required.

If you have a return side installation no supply air feed is needed.

When installing the STS Box be sure to leave adequate service

must have ‘pull’ room for the tank to be removed if necessary. The cover for

the STS Box is a ‘Zero’ clearance cover. However standard space

requirements are at least 1.5x the width of the STS Box of space is needed in

II

) RO System Location and Piping:

everse

mountable with simply two screws and can be hung as self supporting. Follow

outlined below

respective connections. All connections are simple quick connects. It is

recommended that a shut off valve be placed in line after tapping the domestic

water line for the RO System supply.

Locate and connect the

quipment. This will be the right side as you face the system. The

supply side will consist of Black ¼” tubing.

Locate the Yellow drain line, and place in an appropriate area for

drainage.

HUMIDIFICATION SEASON IS MONTHS AWAY.

CONDENSATE PUMP

Locate the b

humidifiers

system metal

storage tank.

proximity to the RO System.

Make sure to open the valve at the top of the storage tank.

Once installed, allow the system to run for approximately 15

minutes to flush completely. Make sure there are no leaks, parts

can come loose in shipping. Hand tightening may be necessary.

The RO System will run until all the humidifier supply lines and

torage tank are filled and charged to the pressure of the building.

This may take several hours to happen.

PLEASE N

WATER SUPPLY TO THE RO SYSTEM.

if this is a problem)

Pipe supply piping from

or STS Box

Open the inline water

filling of water to the

filling the clear water filter housings on the RO System.

e at the supply feed location. If there is not enough

Water system. These systems are wall

for connecting the colored tubes to their

supply side of the

! EVEN IF THE

e product water line that will provide

(provided and taped to the RO

to hook up the product water (blue line) to the

Locate the 2.5 gallon storage/bladder tank in close

ON

(Consult with the Factory

the RO System to the fitting on the side of the

valve off of the building domestic water supply to begin

System. You should notice water immediately

I.
J.

front to service it.

room. You

A. Now install the R

the instructions

1)
e

2)

3)

4)

5)

Osmosis (RO)

domestic water

NOTE: DRAIN MUST BE OPERABLE

– IT MUST BE ON LINE!

lu

. Utilize a “t” connector

frame)

IF PIPED TO A

RO water to the

6)
s

7)

B.

Panel/Generator

C.

the

OTE: 35 PSI MINIMUM REQUIRED

labeled “water in”.

RO

INCOMING

Control

4

D. Check for leaks.

As stated above The RO System will run until al

supply lines and storage tank are filled and charged to the pressure of the

building. This may take several hours to happen. Again, make sure that the

if the drain line is fed to a condensate pump the pump MUST

The RO System has an automatic shut off valve (ASO) that

is completely mechanical and will only open and pass water to drain when the

pressures are not equalized between the domestic water supply and the

humidifier supply lines. If there are any q

Factory Representative.

If the system was provided with a controlling humidity sensor then install it

and wire it from the Generator panel at the appropriately labeled locations on

Refer to the Wiring Diagram

unit for proper landing locations and line sizes.

recommended but not required.

Do the same as the above with both the High Limit humidistat and the Air

ovided. Terminal locations are again labeled in the Wiring

Diagram provided with your Unit.

S signal is being provided then connect it to the proper terminal

locations in the Generator as labeled in the

In this case a separate 24VAC signal is required to turn on the

uestions or issues please contact your

provided with your

ded control wire is

locate AFS before any

Wiring Diagram provided with the

drain is working –
BE OPERABLE!

l the humidifier

III) Accessories:

A.

the terminals.

B.

Flow switch if pr

CAUTION:

dampers.

C. If a BA

Unit.
humidifier.

(see Fig.2 )

Shiel

zone

5

IV)

Sequence of Operation:

A. Building Automation Control (BA

000 to generate output.

humidifier will first look to the air flow switch (AFS) safety and

the high limit switch (HL) safety before coming on.

efore leaving the RAH in an On

control logic will energize the normally closed water fill solenoid

valve. At the same time the normally opened drain solenoid valve will be closed. The

with water and when the low water safety

system will begin to generate fog

for humidification.

e continuous run time when humidifier is undersized or the space really needs

more humidifiers but the customer elected not to furnish and install them. If your model

has a timer delay relay go to that section in this Manual for more info.

In this configuration the Digital Controller governs the

humidifier. The electronic humidity sensor is wired back to the Control Panel per the

wiring diagram and the Controller will operate the system to maintain the set point.

act relay for activating the AHU Fan when there is a call for

Connecting this relay is at the discretion of the Installer and/or Owner.

Care must be taken to insure that zone dampers are opened as well when this relay is

the Controller determines the humidifier needs to come on to maintain

the humidity level the system will first look to the air flow switch (AFS) safety and the

high limit switch (HL) safety before coming on. Be sure these are installed and

rly before leaving the RAH in an On

control logic will energize the normally closed water fill

solenoid valve. At the same time the normally opened drain solenoid valve will be

l fill with water and when the low water safety float swit

satisfied the system will begin to generate fog (early generations of the RAH had two

low water safeties in series)for humidification. A timer relay may be installed for

essive continuous run time when humidifier is undersized or the space

really needs more humidifiers but the customer elected not to furnish and install them.

If your model has a timer delay relay go to that section in this Manual for more info.

S Control a

Once the 24VAC signal is sent

Be sure these are installed and

Assuming the two

)

(early generations of the RAH had two low water

A timer relay may be installed for prevention of

Line state. Assuming the two

signal is sent to the RAH-1
the system for output the

operating properly b
above safeties are good

system will fill
safeties in series)

excessiv

B. Local Control:

There is a dry cont
humidification.

energized. Once

S) Control: With BA

-Line state.

float switche(s

24VAC

to

are satisfied the

operating prope
above safeties are good,

closed. The system wil

prevention of exc

-

ch(s) are

6

WATER PURIFICATION

SUPPLY SIDE TYPICAL INSTALLATION

1)Componentsoutlinedindashed linesinadditiontoPanelandDTAprovidedbyReensAir,

TYPICAL UNIT

WATER PURIFICATION

SCALE: 1"=24"

BY: DJR -12/11/08

ISSUE:01 REV: 00

SIDEVIEW

ofcondensate

InstallDTAatslight

anglefordrainback

PANEL

WIREBACK

TOCONTROL

SWITCH

AIRFLOW

SUPPLYAIR

3"ODCOPPER

4"OD

METAL

SHEET

9"

Tube

Assembly

Dispersion

el/Generator

iredbackto

tronicWall
Elec

sensorw

ControlPan

R

0

O

0

T

0

A

1

R

H

E

A

N

R

E
G

completelyopen

InstallGeneratorat

TO

REDUCE

3"ATPANEL

FAN

angleso doorcanswing

HX

FILTER

INTAKE

R

ROMCLOSETDOO

t

FRONTVIEWF

TANK

STATION

STORAGE

isfornotifiationonly.

necessarillyhere. This

Note:water stationlocationis no

NOTES:

all otherpiping,wiring,mounting andinstallationbyothers.

2)Controllingwall mountedsensor,airflowswitch, providedbyReensAir.

3)Donot trapsupplypipingtoDTA- mustdrainbacktoPanel.

7