Models 3940 and 3949 ___________________________________________________________________________
i
Read This Instruction Manual.
Failure to read, understand and follow the instructions in
this manual may result in damage to the unit, injury to operat-
ing personnel, and poor equipment performance.
CAUTION! All internal adjustments and maintenance must
be performed by qualified service personnel.
Refer to the serial tag on the back of this manual.
The material in this manual is for information purposes
only. The contents and the product it describes are subject to
change without notice. Thermo Forma makes no representations
or warranties with respect to this manual. In no event shall
Thermo Forma be held liable for any damages, direct or inciden-
tal, arising out of or related to the use of this manual.
MANUAL NUMBER 7033940
18
21173/IN-3057
11/15/02
Added ground shield to temperature and humidity probe
ccs
17
20479/IN-3013
10/7/02
Added 1900140 IR CO
2
option as an accessory
aks
16
20474/IN-3013
3/6/02
Added optional heatless dryer
aks
15
20342/PIP-012
10/3/01
Revised electrical schematics
aks
14
19942
6/8/01
Replaced timer 275030 with 410048
aks
13
19935
5/8/01
Updated 3940-71 drawing
aks
12
IN-2858
3/13/01
Revised control panel access and revised electrical schematics
aks
11
19617
12/21/00
New door (105063) - updated electrical schematics
ccs
--
--
10/11/00
Rev 7 corrections (Item J L3 Off and SIL3 ON Humidity Configs)
ccs
10
19187/IN-2816
7/24/00
Added line cord standard
ccs
9
18153/IN-2816
6/27/00
Revise specs and electrical schematics
ccs
-
19207/IN-2827
“
“
“
8
--
4/25/00
Quark format
ccs
7
18972/IN-2791
2/29/00
Updated configs, clarified dehumidify indicator operation
ccs
--
18948/IN-2787
Updated 3940-72 & 3949-71 drawings
REV
ECR/ECN
DATE
DESCRIPTION
By
