Forma Series II 3110 Water-Jacketed co2 Incubators User Manual

7. Insert the stacking brackets into the slots on the rear of the control
panel of the bottom unit as shown in Figure 1-5.  Align the slots in the
brackets with the mounting holes on the rear of the incubators. Secure
the brackets with the screws saved above and the 1/4-20 bolts provided
in the stacking kit. A 7/16” wrench or socket is required for the bolts.
8. Secure the base of the top unit to the exterior top of the bottom unit
by tightening the 5/16-18 stacking bolts using a 1/2” (13mm) wrench
or suitable tool.
9. Replace the base cover on the top unit.
10. The stacked units are ready to be placed into service.
Note If desired, refer to center-of-gravity and attachment information in
Section 7. 
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1. Remove the protective plastic coating on the shelf supports, duct
sheets, and air duct, if present. 
2. Using a suitable laboratory disinfectant, thoroughly clean all interior
surfaces including shelves and shelf supports, door gaskets, blower
wheel and CO
2
sensor.  Refer to Section 5.
Caution Before using any cleaning or decontamination method except
those recommended by the manufacturer, users should check with the
manufacturer that the proposed method will not damage the equipment.
Accidental spills of hazardous materials on or inside this unit are the
responsibility of the user. 
▲
Locate the opening in the top left corner of the interior chamber. Remove
the tape from the opening on the outside of the unit. Locate the stopper
with filter in the hardware bag. Install in the opening inside the chamber.
See Figure 1-9.
Water Jacketed CO
2
Incubator        1-7
Thermo Scientific
Section 1
Installation and Start-Up
Preliminary Cleaning
Installing Access Port
Filter
Figure 1-9. Filter and Sensor Locations

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1. Remove the filter from the shipping bag.
2. Separate one section of the tubing from the filter. Install this section to
the fitting on the blower plate.
3. After installing the top duct, connect the filter assembly to the tubing
coming through the top duct.
4. Insert the free end of the air sample filter tubing into the larger hole in
the back of the blower scroll. See Figure 1-9 for completed
configuration.
1. Remove the filter from the shipping box. 
2. Remove the plastic coating from the filter, using caution not to touch
the filter media.
3. Install the filter as shown in Figure 1-9.
4. To set-up an automatic REPLACE HEPA reminder, see Section 3.
Caution The media of the filter can be damaged if mishandled.  
To avoid damage to the incubator, do not operate the unit without the
HEPA filter in place. 
▲
1. Install the side ducts with the tabs facing into the center of the
chamber with their slots up. There are no right side or left side ducts,
simply rotate one of them to fit the opposite side. Tilt the side ducts as
they are placed in the chamber so the tops fit into the top air duct,
then guide them into the vertical position. Figure 1-10 shows the duct
as it would be oriented for the right side of the chamber.
2. Referring to Figure 1-10, note
that there is no difference
between left and right side
shelf channels.
1-8
Water Jacketed CO2 Incubator
Thermo Scientific
Section 1
Installation and Start-Up
Installing Air Sample
Filter
Installing HEPA Filter
Installing Shelves
Figure 1-10. Shelf Channels and Side Duct

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Leveling the Unit
Connecting Unit to
Electrical Power
3. Install the shelf channels by placing the channel’s rear slot over the
appropriate rear tab on the side duct. Pull the shelf channel forward
and engage the channel’s front slot into the side duct’s appropriate
forward tab. Refer to Figure 1-11.
4. Figure 1-12 shows one of the
channels installed on the right side
duct.
Check the unit for being level by placing a bubble-style level on one of the
shelves. Turn the hex nut on the leveler counterclockwise to lengthen the
leg, or clockwise to shorten it. Level the unit front-to-back and left-to-
right.
See the serial tag on the side of the unit for electrical specifications, or refer
to the electrical schematics in Section 9 of this manual.   
Warning Connect the incubator to a grounded dedicated circuit only.
The power cord connector is the mains disconnect device for the
incubator. Position the unit so that it can be easily disconnected. 
▲
Plug the provided power cord into the power inlet connector (Figure 1-13)
and into the grounded dedicated circuit. 
Electrical Specifications: 
Models 3110, 3120, 3130, 3140 - 115V, 50/60Hz, 3.6A, 1 PH, 2W
Models 3111, 3121, 3131, 3141 -  230V, 50/60Hz, 2.0A, 1 PH, 2W
Water Jacketed CO2 Incubator        1-9
Thermo Scientific
Section 1
Installation and Start-Up
Figure 1-12. Channel Installed
Figure 1-11. Slot and Tab

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Filling Humidity Pan
Turn the power switch on. ADD WATER will appear in the message
center.  Press the Silence key to silence the alarm. 
Note that the fill port has a plug that must be removed before filling and
replaced after filling is complete.
Caution Chlorine is detrimental to stainless steel. Using chlorinated tap
water or additives that contain chlorine will void water-jacket warranty! 
▲
Fill the water jacket with 11.7 gallons (43.5 liters) of pure water. Silicone
tubing and a funnel are shipped in the accessory bag with the unit. 
For ease of connecting/disconnecting, use the
silicone tubing provided to connect directly to the
fill port. See Figure 1-1 and this detail. Do not
install vinyl tubing directly onto the fill port as it
may be difficult to remove. A 3/8” to 3/8” hose
connector has been provided to attach lengths of
vinyl tubing to the silicone fill port tubing, to reach the pure water source.
When the jacket is full, the audible alarm will sound a continuous tone for
10 seconds and the alarm condition will be cleared. Refer to Section 4,
Table of Alarms.
Note Model 3100 Series Water Jacket Incubator is shipped from the
factory with a rust inhibitor added to the water inside the unit. The rust
inhibitor must be replenished every 2 years. See Section 5 to drain the
water jacket and for the correct proportion of rust inhibitor to the water. 
▲
For best operation of the incubator, sterilized distilled, demineralized or de-
ionized water should be used in the humidity pan. Water purity should be
in the resistance range of 50K to 1M Ohm/cm, or a conductivity range of
20.0 to 1.0 uS/cm. Refer to ASTM Standard D5391-93 or D4195-88 for
measuring water purity. 
1-10
Water Jacketed CO2 Incubator
Thermo Scientific
Section 1
Installation and Start-Up
Detail 1
Filling Water Jacket

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