Roberts Gorden Combat At 272 User Manual

®
Combat AT-Series  
Indirect-Fired Air Turnover Units  
Dimension and  
Selection Guide  
1.800.828.7450  
Quality in Any Language  
AT-Series Heating Unit with Filtration  
K
DA  
DA  
DA  
DA  
H
J
F
F
LIFTING  
ANGLES  
CONTROL  
PANEL  
D
INSPECTION  
AND RELIEF  
PORT  
E
SPLIT  
FOR  
SHIPMENT  
C
G
RA  
RA  
RA  
RA  
L
N
L
M
B
M
A
FRONT VIEW  
END VIEW  
DIMENSIONS  
LEGEND  
AT-136 AT-148 AT-154 AT-236 AT-242 AT-248 AT-254 AT-260 AT-272  
DA = Discharge Air  
A
B
C
60  
50  
75  
72  
60  
75  
85  
72  
86  
90  
50  
60  
100  
55  
66  
116  
60  
66  
145  
72  
72  
160  
84  
72  
165  
90  
76  
RA = Return Air  
75 - 53  
75 - 53 100 - 53  
100 - 53 125 - 72  
125 - 72 150 - 72  
175 - 72  
D
53  
53  
65  
53  
90  
96  
96  
IMPORTANT NOTES:  
All dimensions are subject to change  
without notice.  
Due to height of unit, additional support is  
recommended on top of the unit.  
Dimension "F" is flue diameter. Flue located  
on left side of unit for 1,000 MBH heat  
exchanger and smaller; flue located on right  
side of unit for 1,250 MBH heat exchanger  
and larger.  
Dimensions "D" and "F" may vary depending  
on heat exchanger size (ex. 45 = 450 MBH  
heat exchanger).  
All dimensions are in inches.  
E
F
35  
35  
35  
35  
35  
35  
35  
35  
35  
45 - 6  
75 - 6  
45 - 6  
75 - 6  
45 - 6  
75 - 6  
45 - 6  
75 - 6  
75 - 6 175 - 12 300 - 14 300 - 14  
70 - 6 100 - 8 100 - 8 225 - 12 450 - 16 450 - 16  
100 - 8 100 - 8 100 - 8 100 - 8 125 - 10 125 - 10 300 - 14  
125 - 10  
175 - 12  
G
H
J
K
L
3
24  
48  
.75  
.75  
6
3
24  
48  
.75  
.75  
6
3
3
24  
48  
.75  
.75  
6
3
30  
48  
.75  
.75  
6
3
4
36  
48  
.75  
.75  
6
4
36  
48  
.75  
.75  
6
4
40  
48  
.75  
.75  
6
36  
48  
.75  
.75  
6
30  
48  
.75  
.75  
6
M
N
3
3
3
3
3
3
3
3
3
3
AT-Series Cooling Unit with Filtration  
H
DA  
DA  
DA  
DA  
F
D
LIFTING  
ANGLES  
M
SPLIT  
FOR  
G
SHIPMENT  
C
RA  
RA  
RA  
RA  
L
E
J
J
K
A
K
B
FRONT VIEW  
END VIEW  
DIMENSIONS  
LEGEND  
AT-136 AT-148 AT-154 AT-236 AT-242 AT-248 AT-254 AT-260 AT-272  
DA = Discharge Air  
A
B
C
D
E
F
G
H
J
60  
50  
75  
48  
6
72  
60  
85  
48  
6
85  
72  
95  
48  
6
90  
50  
85  
48  
6
100  
55  
85  
48  
6
116  
60  
95  
48  
6
145  
72  
90  
48  
6
160  
84  
90  
48  
6
165  
90  
90  
48  
6
RA = Return Air  
24  
24  
36  
10  
.75  
.75  
6
24  
10  
.75  
.75  
6
30  
16  
.75  
.75  
6
30  
6
.75  
.75  
6
36  
36  
40  
10  
.75  
.75  
6
IMPORTANT NOTES:  
All dimensions are in inches.  
All dimensions are subject to change  
without notice.  
.75  
.75  
6
.75  
.75  
6
.75  
.75  
6
.75  
.75  
6
K
L
M
Due to height of unit, additional support is  
recommended on top of the unit.  
3
3
3
3
3
3
3
3
3
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
50  
50  
50  
4
AT-Series Heating and Cooling Unit with Filtration  
K
DA  
DA  
DA  
H
DA  
E
LIFTING  
ANGLES  
F
F
CONTROL  
PANEL  
D
P
INSPECTION  
AND  
RELIEF PORT  
Q
SPLIT  
LIFTING  
ANGLES  
FOR  
J
SHIPMENT  
C
G
RA  
RA  
RA  
RA  
L
N
L
A
B
M
M
FRONT VIEW  
END VIEW  
DIMENSIONS  
LEGEND  
AT-136 AT-148 AT-154 AT-236 AT-242 AT-248 AT-254 AT-260 AT-272  
DA = Discharge Air  
A
B
C
60  
50  
75  
72  
60  
85  
85  
72  
95  
90  
50  
85  
100  
55  
85  
116  
60  
95  
145  
72  
90  
160  
84  
90  
165  
90  
90  
RA = Return Air  
75 - 53  
75 - 53 100 - 53  
100 - 53 125 - 72  
125 - 72 150 - 72  
175 - 72  
D
53  
53  
65  
53  
90  
48  
96  
48  
96  
48  
IMPORTANT NOTES:  
All dimensions are subject to change  
without notice.  
Due to height of unit, additional support  
is recommended on top of the unit.  
Dimension "F" is flue diameter. Flue  
located on left side of unit for 1,000 MBH  
heat exchanger and smaller; flue located  
on right side of unit for 1,250 MBH heat  
exchanger and larger.  
Dimensions "D" and "F" may vary  
depending on heat exchanger size  
(ex. 45 = 450 MBH heat exchanger).  
All dimensions are in inches.  
E
F
48  
45 - 6  
75 - 6  
48  
45 - 6  
75 - 6  
48  
45 - 6  
75 - 6  
48  
45 - 6  
48  
48  
75 - 6  
75 - 6 175 - 12 300 - 14 300 - 14  
75 - 6 100 - 8 100 - 8 225 - 12 450 - 16 450 - 16  
100 - 8 100 - 8 100 - 8 100 - 8 125 - 10 125 - 10 300 - 14  
125 - 10  
175 - 12  
G
H
J
K
L
M
N
P
Q
6
24  
6
24  
6
36  
10  
.75  
.75  
6
3
N/A  
35  
6
24  
10  
.75  
.75  
6
3
N/A  
35  
6
30  
16  
.75  
.75  
6
6
30  
6
.75  
.75  
6
6
36  
6
36  
6
40  
10  
.75  
.75  
6
3
50  
35  
.75  
.75  
6
3
N/A  
35  
.75  
.75  
6
3
N/A  
35  
.75  
.75  
6
3
50  
35  
.75  
.75  
6
3
50  
35  
3
3
N/A  
35  
N/A  
35  
5
AT-Series Estimated Shipping Weights  
ESTIMATED SHIPPING WEIGHTS - BURNERS (ALL MODELS)  
IMPORTANT NOTES:  
All weights are in pounds.  
All weights are subject to change  
without notice.  
To determine total unit weight, add  
the appropriate burner weight to the  
appropriate base unit weight  
(as listed in performance information  
tables).  
300 -  
625  
626 -  
938  
939 -  
1250  
1251 -  
1875  
1876 -  
2500  
2501 -  
3125  
3126 -  
5000  
Input MBH  
GAS  
BURNER  
Weight  
155  
190  
230  
290  
300  
340  
340  
22.1 -  
36  
2.5 -  
4.5  
4.6 -  
6.7  
6.8 -  
8.9  
220  
939 -  
1250  
6.8 -  
8.9  
9.0 -  
13.4  
220  
1251 -  
1875  
9.0 -  
13.4  
13.5 -  
17.9  
310  
1876 -  
2500  
13.5 -  
17.9  
18 -  
22  
Input GPH  
Weight  
#2 OIL BURNER  
125  
300 -  
625  
2.5 -  
4.5  
125  
626 -  
938  
4.6 -  
6.7  
360  
2501 -  
3125  
18 -  
22  
385  
3126 -  
5000  
22.1 -  
36  
Input MBH  
COMBINATION  
GAS / #2 OIL  
BURNER  
Input GPH  
Weight  
200  
240  
270  
360  
400  
450  
500  
AT-Series Selection Guide  
To create a complete air turnover unit, choose one base unit and one burner/manifold package using the tables on the  
following pages. Prices apply for natural gas or LPG units.  
1. Choosing A Base Unit Package  
Base Unit Package choice is based on model choice. First locate the correct set of tables on the following pages which corresponds to the required  
type of unit. Locate CFM and MBH requirements on the appropriate set of tables to determine the unit model. If more than one model is applicable,  
choose the smaller model.  
Btu/h Output Required = CFM * 1.08 * Temperature Rise  
MBH = Btu/h / 1,000  
2. Choosing A Burner/Manifold Package  
Choose Burner/Manifold Package based on input, burner type and insurance requirements. Choose a Burner/Manifold Package that can fulfill the  
maximum output of the model. Note that burner INPUTS are listed rather than outputs.  
Burner Input = Burner Output / .8  
Tables A: Air Turnover Heating Unit Performance Information  
(Additional configurations are available upon request.)  
AT-136  
AT-248  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
CFM  
Motor (HP)  
4,500 1 (1 motor)  
9,000 2 (1 motor)  
12,000 3 (1 motor)  
240  
240  
240  
450  
450  
450  
49 to 93  
25 to 46  
19 to 35  
2,225  
2,280  
2,305  
22,000 3 (2 motors)  
35,000 5 (2 motors)  
45,000 5 (2 motors)  
45,000 5 (2 motors)  
240  
520  
560  
560  
750  
10 to 32  
14 to 26  
12 to 26  
12 to 31  
5,990  
6,145  
6,270  
6,270  
1,000  
1,250  
1,500  
AT-148  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
3,255  
3,300  
AT-254  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
7,670  
8,060  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
10,000 3 (1 motor)  
16,000 3 (1 motor)  
240  
240  
450  
750  
22 to 42  
14 to 43  
40,000 5 (2 motors)  
60,000 7.5 (2 motors)  
65,000 7.5 (2 motors)  
560  
600  
600  
1,750  
2,250  
2,500  
13 to 41  
9 to 35  
9 to 36  
AT-154  
8,310  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
3,880  
3,940  
4,115  
4,220  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
AT-260  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
10,870  
11,135  
11,135  
14,000 3 (1 motor)  
22,000 5 (1 motor)  
30,000 7.5 (1 motor)  
30,000 7.5 (1 motor)  
240  
240  
520  
560  
450  
750  
1,000  
1,250  
16 to 30  
10 to 32  
16 to 31  
17 to 39  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
54,000 5 (2 motors)  
61,000 7.5 (2 motors)  
74,000 7.5 (2 motors)  
600  
720  
720  
3,000  
4,000  
4,000  
10 to 51  
11 to 61  
9 to 50  
AT-236  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
3,945  
3,990  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
AT-272  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
11,720  
12,185  
12,185  
Temp. Rise  
Range (°F)  
9,000 1 (2 motors)  
18,000 2 (2 motors)  
24,000 3 (2 motors)  
240  
240  
520  
450  
750  
1,000  
25 to 46  
12 to 39  
20 to 39  
CFM  
Motor (HP)  
4,115  
62,000 5 (2 motors)  
88,000 10 (2 motors)  
100,000 10 (2 motors)  
600  
720  
720  
3,000  
4,500  
4,500  
9 to 45  
8 to 47  
7 to 42  
AT-242  
Output  
(MBH)  
Output  
(MBH)  
Temp.  
Rise  
Base Unit  
Weight  
(lbs.)  
CFM  
Motor (HP)  
Minimum Maximum Range (°F)  
21,000 2 (2 motors)  
31,000 3 (2 motors)  
31,000 3 (2 motors)  
240  
520  
560  
750  
1,000  
1,250  
11 to 33  
16 to 30  
17 to 37  
4,990  
5,115  
5,240  
6
Tables B: Air Turnover Heating Unit with Filtration Performance Information  
(Additional configurations are available upon request.)  
AT-136  
AT-248  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
CFM  
Motor (HP)  
4,500 1 (1 motor)  
9,000 3 (1 motor)  
12,000 5 (1 motor)  
240  
240  
240  
450  
450  
450  
49 to 93  
25 to 46  
19 to 35  
2,425  
2,505  
2,520  
22,000 3 (2 motors)  
35,000 5 (2 motors)  
45,000 7.5 (2 motors)  
45,000 7.5 (2 motors)  
240  
520  
560  
560  
750  
10 to 32  
14 to 26  
12 to 26  
12 to 31  
6,190  
6,345  
6,575  
6,730  
1,000  
1,250  
1,500  
AT-148  
Output  
(MBH)  
Minimum Maximum  
240  
240  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
3,455  
3,470  
AT-254  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
7,870  
8,310  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
10,000 3 (1 motor)  
16,000 5 (1 motor)  
450  
750  
22 to 42  
14 to 43  
40,000 5 (2 motors)  
60,000 10 (2 motors)  
65,000 10 (2 motors)  
560  
600  
600  
1,750  
2,250  
2,500  
13 to 41  
9 to 35  
9 to 36  
AT-154  
8,560  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
4,080  
4,140  
4,210  
4,420  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
AT-260  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
11,070  
11,335  
11,385  
Temp. Rise  
Range (°F)  
14,000 3 (1 motor)  
22,000 5 (1 motor)  
30,000 10 (1 motor)  
30,000 10 (1 motor)  
240  
240  
520  
560  
450  
750  
1,000  
1,250  
16 to 30  
10 to 32  
16 to 31  
17 to 39  
CFM  
Motor (HP)  
54,000 5 (2 motors)  
61,000 7.5 (2 motors)  
74,000 10 (2 motors)  
600  
720  
720  
3,000  
4,000  
4,000  
10 to 51  
11 to 61  
9 to 50  
AT-236  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
4,145  
4,240  
AT-272  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
9,000 1 (2 motors)  
18,000 3 (2 motors)  
24,000 5 (2 motors)  
240  
240  
520  
450  
750  
1,000  
25 to 46  
12 to 39  
20 to 39  
7.5 (2 mo-  
tors)  
62,000  
600  
3,000  
9 to 45  
12,160  
4,270  
88,000 10 (2 motors)  
100,000 15 (2 motors)  
720  
720  
4,500  
4,500  
8 to 47  
7 to 42  
12,385  
12,515  
AT-242  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
21,000 3 (2 motors)  
31,000 5 (2 motors)  
31,000 5 (2 motors)  
240  
520  
560  
750  
1,000  
1,250  
11 to 33  
16 to 30  
17 to 37  
5,240  
5,270  
5,445  
Tables C: Air Turnover Cooling Unit with Filtration Performance Information  
(For cooling applications, consult factory. Base Unit Weights do not account for inclusion of cooling coils or exclusion of heat exchanger.  
Additional configurations are available upon request.)  
AT-136  
AT-248  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
4,500  
9,000  
12,000  
1 (1 motor)  
3 (1 motor)  
5 (1 motor)  
2,425  
2,505  
2,520  
22,000  
35,000  
45,000  
45,000  
3 (2 motors)  
5 (2 motors)  
7.5 (2 motors)  
7.5 (2 motors)  
6,190  
6,345  
6,575  
6,730  
AT-148  
AT-254  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
10,000  
16,000  
3 (1 motor)  
5 (1 motor)  
3,455  
3,470  
40,000  
60,000  
65,000  
5 (2 motors)  
10 (2 motors)  
10 (2 motors)  
7,870  
8,310  
8,560  
AT-154  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
AT-260  
14,000  
22,000  
30,000  
30,000  
5 (1 motor)  
5 (1 motor)  
10 (1 motor)  
10 (1 motor)  
4,080  
4,140  
4,210  
4,420  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
54,000  
61,000  
74,000  
5 (2 motors)  
7.5 (2 motors)  
10 (2 motors)  
11,070  
11,335  
11,385  
AT-236  
AT-272  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
9,000  
18,000  
24,000  
2 (1 motors)  
3 (2 motors)  
5 (2 motors)  
4,145  
4,240  
4,270  
62,000  
88,000  
100,000  
7.5 (2 motors)  
10 (2 motors)  
15 (2 motors)  
12,160  
12,385  
12,515  
AT-242  
CFM  
Motor (HP)  
Base Unit Weight (lbs.)  
21,000  
31,000  
31,000  
3 (2 motors)  
5 (3 motors)  
5 (3 motors)  
5,240  
5,270  
5,445  
7
Tables D: Air Turnover Heating/Cooling Unit with Filtration Performance Information  
(For cooling applications, consult factory. Base Unit Weights do not account for inclusion of cooling coils or exclusion of heat exchanger.  
Additional configurations are available upon request.)  
AT-136  
AT-248  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
CFM  
Motor (HP)  
4,500 1.5 (1 motor)  
240  
240  
240  
450  
450  
450  
49 to 93  
25 to 46  
19 to 35  
2,425  
2,505  
2,520  
22,000 5 (2 motors)  
35,000 7.5 (2 motors)  
45,000 10 (2 motors)  
45,000 10 (2 motors)  
240  
520  
560  
560  
750  
10 to 32  
14 to 26  
12 to 26  
12 to 31  
6,190  
6,345  
6,575  
6,730  
9,000  
5 (1 motor)  
1,000  
1,250  
1,500  
12,000 5 (1 motor)  
AT-148  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
3,455  
3,470  
AT-254  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
10,000 5 (1 motor)  
16,000 7.5 (1 motor)  
240  
240  
450  
750  
22 to 42  
14 to 43  
40,000 5 (2 motors)  
60,000 10 (2 motors)  
65,000 15 (2 motors)  
560  
600  
600  
1,750  
2,250  
2,500  
13 to 41  
9 to 35  
9 to 36  
7,870  
8,310  
8,560  
AT-154  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
AT-260  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
11,070  
11,335  
11,385  
Temp. Rise  
Range (°F)  
14,000 5 (1 motor)  
22,000 7.5 (1 motor)  
30,000 10 (1 motor)  
30,000 10 (1 motor)  
240  
240  
520  
560  
450  
750  
1,000  
1,250  
16 to 30  
10 to 32  
16 to 31  
17 to 39  
4,080  
4,140  
4,210  
4,420  
CFM  
Motor (HP)  
54,000 7.5 (2 motors)  
61,000 10 (2 motors)  
74,000 15 (2 motors)  
600  
720  
720  
3,000  
4,000  
4,000  
10 to 51  
11 to 61  
9 to 50  
AT-236  
AT-272  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
9,000 1.5 (2 motors)  
18,000 5 (2 motors)  
24,000 5 (2 motors)  
240  
240  
520  
450  
750  
1,000  
25 to 46  
12 to 39  
20 to 39  
4,145  
4,240  
4,270  
62,000 7.5 (2 motors)  
88,000 15 (2 motors)  
100,000 15 (2 motors)  
600  
720  
720  
3,000  
4,500  
4,500  
9 to 45  
8 to 47  
7 to 42  
12,160  
12,385  
12,515  
AT-242  
Output  
(MBH)  
Minimum Maximum  
Output  
(MBH)  
Base Unit  
Weight  
(lbs.)  
Temp. Rise  
Range (°F)  
CFM  
Motor (HP)  
21,000 5 (2 motors)  
31,000 7.5 (2 motors)  
31,000 7.5 (2 motors)  
240  
520  
560  
750  
1,000  
1,250  
11 to 33  
16 to 30  
17 to 37  
5,240  
5,270  
5,445  
Installation Code and Annual Inspections:  
All installations and service of ROBERTS GORDON® equipment must be performed by a contractor qualified in the installation and ser-  
vice of equipment sold and supplied by Roberts-Gordon and conform to all requirements set forth in the ROBERTS GORDON® manuals  
and all applicable governmental authorities pertaining to the installation, service and operation of the equipment. To help facilitate  
optimum performance and safety, Roberts-Gordon recommends that a qualified contractor annually inspect your ROBERTS GORDON®  
equipment and perform service where necessary, using only replacement parts sold and supplied by Roberts-Gordon.  
Further Information: Applications, engineering and detailed guidance on systems design, installation and equipment performance is  
available through ROBERTS GORDON® representatives. Please contact us for any further information you may require, including the  
Installation, Operation and Service Manual.  
This product is not for residential use.  
This document is intended to assist licensed professionals in the exercise of their professional judgement.  
Roberts-Gordon, LLC  
1250 William Street  
P.O. Box 44  
Buffalo, NY 14240-0044 USA  
Telephone: 716.852.4400  
Fax: 716.852.0854  
European Office:  
Roberts Gordon Europe Limited  
Telephone: +44(0)121 506 7700  
Fax: +44(0)121 506 7701  
Toll Free: 800.828.7450  
© 2007 Roberts-Gordon, LLC All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form  
or by any means – graphic, electronic, or mechanical, including photocopying, recording, taping, or information  
storage and retrieval systems – without written permission of Roberts-Gordon, LLC.  
Printed in U.S.A.  
CATDSGNA  
2M 1107 Orig  

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