Carnes L1 Installation Manual
CARNES COMPANY, VERONA, WISCONSIN
TYPICAL LUMATIC HUMIDIFIER (Figure A)
Steam Distributor
Pipes (9)
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
LUMATIC HUMIDIFIER
318 Shut-Off
Valve (I)
/ Orifice (17)
rr”,usrault: aLedill
Fused Disconnect
or Circuit Breaker (6)
Ground
Terminal (5)
Power Supply
Terminal Block (11)
Adjustable Water _
Needle Valve (15)
Low Voltage
Terminal Strip (13)-
Pressure
Regulator (16) -
Steam Hose (101
Fill Cup (18)
Retaining
/Band (12)
- Cylinder(s) (7)
Drain Switch
or Switches (14)
Brass Drain
Fitting (8)
/
Large Nut and
Plastic Gasket (2)
Air-Gap
Waste Fitting (3)
16603-C
SUPERSEDES 16603-B
ISSUED 4-30-75
INSTALLATION
UNPACKING AND INSPECTION
1. A manilla envelope attached to the outside of the
Lumatic cabinet contains the following items:
A. Two cabinet keys
B. Wiring Diagram - Form 16602
C. Parts List - Form 16623
D. Installation instructions - Form 16663
E. Cable ties for hoses
2. Unlock the cabinet and check for concealed shipping
damage. Report any damage immediately to the carrier
who delivered the shipment.
3. The following components are packed in the shipping
carton for connection when installing the Lumatic:
A. Distributor pipe(s).
B. Cylinder(s). The cylinders packed within the Lumatic
cabinet are upside down to prevent shipping damage.
C. Air-gap waste fitting.
D. Steam hose (Total number of feet for all circuits).
E. Condensate return line (Total number of feet for
all circuits).
4. Table 1 indicates the number of components supplied
with each Lumatic. Optional accessories (e.g., humidistats, standpipe, etc.) may be packed with the cabinet
or in the same shipping carton. Large accessories may
ship in separate cartons.
Table 1 - Lumatic Components
Model
Number Catnet
Ll & L4 1
I
L2 & L5 1
L3 & L6 3
Cylinders
2
Spare
Cylinders
Distributor AkaG:F
Pipes
1
2 2 1
3 3 1
1 1
Fitting
I
5. Inside the cabinet are the following items:
A. Pipe dope.
B. Steam hose clamps (two per circuit)
C. Condensate return line clamps (one per circuit).
D. One key for resetting drain cycle timer.
E. Distributor pipe mounting template (one for each
distributor pipe).
MOUNTING THE LUMATIC
Mount the Lumatic cabinet level and plumb on a surface
near the ductwork, and 16” or more below the point at
which thedistributor pipe(s) will be installed. An accessory
mounting frame may be used if surface is not plumb or
studding is uneven. Allow 6” or more on each side for
proper ventilation and a minimum of 16” from bottom
to the floor to allow for drain connection. (See Figure B
below)
---_
I
I
7 DUCT
16” MIN.
WATER SUPPLY CONNECTION
Use only ordinary tap water - DO NOT use hot or de-
ionized water. A 3/8” female FPT fitting is provided
at the top of the Lumatic to connect to the tap water
supply. A shut-off valve, not provided by Carnes, should
be provided just ahead of this fitting.
DRAIN LINE CONNECTION
Refer to Figure A
Remove the large nut and plastic gasket located on the
fitting on the bottom of the cabinet (2). The nut and
gasket may be used with standard type waste fitting if
an air-gap waste fitting is not required by local codes.
If required, connect the air-gap waste fitting (31 to the
cabinet drain connection. Drop plastic insert into the
top of the air-gap waste fitting before connecting. It
may be necessary to cut off some of the air-gap fitting
depending on the available space.
Connect the drain or air gap fitting to an S or P trap
(41. Note: If the condensate pump accessory package
is used, follow instructions included with the condensate pump package.
INSTALLATIONS OF CYLINDER(S)
Refer to Figure A
POWER MUST BE OFF BEFORE MAKING ANY
ELECTRICAL CONNECTIONS.
1. Lumatic cylinder(s), (7) contained in the cabinet are
shipped upside down to prevent shipping damage. Re-
move cylinder(s) and remove plastic protective caps on
both ends of the cylinder.
2. Remove plastic plug from the brass drain fitting (8)
I
located on the bottom of the Lumatic cabinet.
3. Apply pipe dope to threads on neck at the bottom of
the cylinder.
4. Screw cylinder into fitting (8) - hand tighten only.
5. Connect retaining band (72) to secure cylinder in place.
6. Connect electrical quick connect terminals to cylinder
terminals. Push them on securely (they are not
threaded).
INSTALL STEAM DISTRIBUTOR PIPE(S)
Refer to Figure A
1. Steam distributor plate must be mounted on a plumb
surface. When mounted on a plumb surface, the standard distributor pipe pitches downward. This is required so the condensate which forms in the distributor pipe will drain to the return line and back to the
unit.
2. Steam distributor pipe(s), 191 should be mounted in
the duct so that there will be even distribution of
steam across the center portion of the duct (See Figure
C). The condensate return line must always be kept on
the bottom. A minimum clearance of 4” must be
maintained between the duct and distributor pipe.
The steam distributor pipes are designed with a hole
pattern .which gives even distribution yet keeps steam
away from the sides of the duct. If a Lumatic with
multiple steam generator circuits is used, it may be
possible to use the steam distributor pipes as shown
(See Figure D).
Fiaure B
The standard Lumatic steam distributor pipe
never be installed vertically. If air flows are vertical, the
must
2
Figure C
3
Figure D
l-
1-48”-1
48”+
Lumatic steam distributor pipe should be installed
horizontally as shown (See Figure E).
The steam distributor pipes should be installed in the
supply air stream, downstream of the fan (See Figure F).
When installed in packaged units (central station air
handlers, multizone units, make-up air units, etc.) the
distributor pipe should be mounted just downstream
of the fan discharge in the primary air stream.
In multizone applications it is preferable to have a
Lumatic steam generator circuit serving each zone.
However, steam can be introduced into the hot deck
upstream of the zone dampers. In this case, good
distribution of steam across the entire hot deck is
very important.
Generally, it is preferable to mount the steam distributor
pipes downstream from any obstructions in the duct-
work coils, filters, zone dampers, elbows etc. If the
steam distributor pipe is installed upstream of the obstructions, there should be a minimum of three feet
between the steam distributor pipe and the obstruction.
This same rule applies to outlets. In all cases, always
install the steam distributor pipe as far upstream of
the obstruction as possible.
The reason it is advised that the steam distributor pipes
be mounted downstream from any obstructions is so
that the air has a chance to absorb condensed moisture
before it impinges on a surface and accumulates. If it is
absolutely necessary to install a steam distributor pipe
upstream of the fan (on the suction side) it is recommended that the pipe be installed as far upstream of the
inlet as possible. A minimum of three feet from the
inlet is mandatory.
3. An adhesive backed template is provided for each
distributor pipe. This provides the hole pattern for
mounting of each steam distributor pipe. Using the
template(s), cut necessary holes in ductwork at desired
location of distributor pipe.
4. Insert distributor pipe into duct and secure tightly with
four sheet metal screws, not provided by Carnes.
5. Special distributor pipes are shipped with specific
instructions on how to mount them.
6. If the accessory blower package is to be used, follow
the instructions included with the blower package.
Figure E
Figure F
\DON’T
CONNECTING THE STEAM HOSE
Refer to Figure A, G, H and J
COPPER OR BRASS TUBE IS THE ONLY ACCEPTABLE SUBST/TLJTEFORCARNESSTEAMHOSEORCOND&NSATEHOSE
1. The steam hose (70) should be installed so there is a
continuous rise from the Lumatic to the distributor
pipe. Support the steam hose at intermediate points to
prevent dips or pockets. If it is necessary to mount the
distributor pipe below the top of the Lumatic, a “T”
fitting must be installed at the lowest point in the
steam hose to drain any condensate from the steam
hose. Carnes part number 690-0121 is available for this
application.
2. Any turns should have a minimum radius of 6” to
prevent the hose from kinking.
3. Fasten the steam hose to the distributor pipe with one
of the hose clamps provided.
4. Push the steam hose through the opening on the top of
the Lumatic cabinet and slip over the outlet stub on
the top of the cylinder. Fasten with the other hose
clamp provided.
3
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