MODELS BTR(C)120 THRU 500A
COMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER
• INSTALLATION • OPERATION • MAINTENANCE • LIMITED WARRANTY
Thank you for buying this energy efficient water heater from A.O. Smith Water Products Company. We appreciate your confidence in our product.
CAUTION
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ
THOROUGHLY BEFORE INSTALLING AND USING THIS
APPLIANCE.
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A DIVISION OF A. O. SMITH CORPORATION |
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McBEE, SOUTH CAROLINA, USA |
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STRATFORD, ONTARIO, CANADA |
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www.aosmithwaterheaters.com |
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PLACE THESE INSTRUCTIONSADJACENT TO HEATER |
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AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE. |
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PART NO. 195779-000 |
PRINTED IN U.S.A. 2576 0903 |
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SUPERSEDES PART NO. 194421-000 |
1
ROUGH-IN-DIMENSIONS
MODELS BTR(C) 120 THROUGH 500
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FIGURE1 |
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See Models Below |
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BTR MODELS 120 THROUGH 500ATABLE 1A |
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MODEL |
INPUT |
APPROX. |
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GAS |
H |
VENT |
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CONNECTIONS |
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Approximate |
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RATE |
TANK |
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INLET |
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DIA |
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INLET |
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OUTLET |
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ship. Weight |
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BTU/Hr. |
CAP. |
A |
B |
C |
D |
E |
F |
G |
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I |
J |
TOP |
FRONT |
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BACK |
TOP |
FRONT |
BACK |
STD. |
ASME |
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BTR120 |
120,000 BTU/Hr. |
71 Gal |
69.75" |
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4.25" |
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59.50" |
50.87" |
19.69" |
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19" |
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1/2" |
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51.88" |
5" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
400 Lbs |
NA |
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35 Kw/Hr |
268L |
177 cm |
11cm |
151 cm |
129 cm |
50 cm |
48 cm |
1/2" |
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132 cm |
13 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
182 Kg |
NA |
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BTR154 |
154,000 BTU/Hr |
81 Gal |
73.00" |
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4.25" |
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66.50" |
57.87" |
19.69" |
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19" |
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1/2" |
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59.00" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
470 Lbs |
NA |
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45 Kw/Hr |
307L |
185 cm |
11cm |
169 cm |
147 cm |
50 cm |
48 cm |
1/2" |
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150 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
213 Kg |
NA |
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BTR180 |
180,000 BTU/Hr |
81Gal |
67.50" |
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4.50" |
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62.00" |
53.62" |
20.50" |
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21" |
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1/2" |
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54.62" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
470 Lbs |
NA |
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53 Kw/Hr |
307L |
171 cm |
12 cm |
157 cm |
136 cm |
52 cm |
53 cm |
1/2" |
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139 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
213 Kg |
NA |
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BTR197 |
199,000 BTR/Hr |
100 Gal |
75.00" |
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4.50" |
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70.00" |
61.62" |
20.50" |
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21" |
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1/2" |
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62.62" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
603 Lbs |
NA |
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58 kW/Hr |
379L |
192 cm |
12 cm |
178 cm |
157 cm |
52 cm |
53 cm |
1/2" |
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159 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
273 Kg |
NA |
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BTR198 |
199,000 BTU/Hr. |
100 Gal |
75.00" |
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4.50" |
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70.00" |
61.62" |
20.50" |
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21" |
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1/2" |
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61.50" |
6" |
27.75" |
1.50" |
1.50" |
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2.00" |
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1.50" |
1.50" |
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2.00" |
603 Lbs |
NA |
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58 Kw/Hr |
379L |
192 cm |
12 cm |
178 cm |
157 cm |
52 cm |
53 cm |
1/2" |
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150 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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2.00" |
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1.50" |
1.50" |
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2.00" |
273 Kg |
NA |
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BTR199 |
190,000 BTR/Hr |
81 Gal |
67.50" |
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4.50" |
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62.00" |
53.62" |
20.50" |
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21" |
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1/2" |
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54.62" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
470 Lbs |
NA |
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56 kW/Hr |
307L |
171 cm |
12 cm |
157 cm |
136 cm |
52 cm |
53 cm |
1/2" |
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139 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
213 Kg |
NA |
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BTR 200 |
199,000 BTR/Hr |
100 Gal |
72.00" |
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4.50" |
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65.13" |
55.87" |
19.75" |
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23" |
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1/2" |
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56.38" |
6" |
30.25" |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
630 Lbs |
725 Lbs |
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58 kW/Hr |
379L |
183 cm |
12 cm |
165 cm |
142 cm |
50 cm |
58 cm |
1/2" |
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143 cm |
15 cm |
77 cm |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
286 Kg |
329 Kg |
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BTR 250 |
250,000 BTR/Hr |
100 Gal |
72.00" |
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4.50" |
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65.13" |
55.87" |
19.75" |
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23" |
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1/2" |
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56.38" |
8" |
30.25" |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
630 Lbs |
725 Lbs |
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72 kW/Hr |
379L |
183 cm |
12 cm |
165 cm |
142 cm |
50 cm |
58 cm |
1/2" |
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143 cm |
20 cm |
77 cm |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
286 Kg |
329 Kg |
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BTR 251 |
251,000 BTR/Hr |
65 Gal |
75.00" |
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4.50" |
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65.75" |
57.25" |
20.00" |
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NA |
1/2" |
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58.75 |
8" |
27.75" |
NA |
1.50" |
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1.50" |
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NA |
1.50" |
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1.50" |
750Lbs |
862 Lbs |
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73 kW/Hr |
246L |
191 cm |
12 cm |
167 cm |
145 cm |
51 cm |
NA |
1/2" |
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149 cm |
20 cm |
70 cm |
NA |
1.50" |
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1.50" |
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NA |
1.50" |
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1.50" |
341 Kg |
391 Kg |
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BTR 275 |
275,000 BTR/Hr |
100 Gal |
72.00" |
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4.50" |
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65.13" |
55.87" |
19.75" |
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23" |
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1/2" |
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56.38" |
8" |
30.25" |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
630 Lbs |
725 Lbs |
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80 kW/Hr |
379L |
183 cm |
12 cm |
165 cm |
142 cm |
50 cm |
58 cm |
1/2" |
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143 cm |
20 cm |
77 cm |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
286 Kg |
329 Kg |
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BTR 305 |
305,000 BTR/Hr |
65 Gal |
75.00" |
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4.50" |
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65.75" |
57.25" |
20.00" |
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NA |
1/2" |
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58.75 |
8" |
27.75" |
NA |
1.50" |
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1.50" |
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NA |
1.50" |
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1.50" |
750 Lbs |
862 Lbs |
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89 kW/Hr |
246L |
191 cm |
12 cm |
167 cm |
145 cm |
51 cm |
NA |
1/2" |
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149 cm |
20 cm |
70 cm |
NA |
1.50" |
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1.50" |
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NA |
1.50" |
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1.50" |
341 Kg |
391 Kg |
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BTR 365 |
365,000 BTR/Hr |
85 Gal |
79.50" |
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4.50" |
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70.25" |
62.50" |
22.50" |
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23” |
3/4" |
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63.00 |
8" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
725 Lbs |
833 Lbs |
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107 kW/Hr |
322L |
202 cm |
12 cm |
178 cm |
159 cm |
57 cm |
58 cm |
3/4" |
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160 cm |
20 cm |
70 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
329 Kg |
379 Kg |
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BTR 400 |
399,000 BTR/Hr |
100 Gal |
75.50" |
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4.50" |
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67.50" |
58.25" |
26.75" |
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23" |
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3/4" |
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59.00" |
8" |
30.25" |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
760 Lbs |
874 Lbs |
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117 kW/Hr |
379L |
192 cm |
12 cm |
171 cm |
148 cm |
68 cm |
58 cm |
3/4" |
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150 cm |
20 cm |
77 cm |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
345 Kg |
396 Kg |
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BTR 500 |
500,000 BTR/Hr |
85 Gal |
82.25" |
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4.50" |
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73.50" |
65.25" |
25.50" |
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21" |
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1" |
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65.75 |
8" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
745 Lbs |
857 Lbs |
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147 kW/Hr |
322L |
209 cm |
12 cm |
187 cm |
166 cm |
65 cm |
53 cm |
1" |
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167 cm |
20 cm |
70 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
338 Kg |
389 Kg |
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BTRC MODELS 120 THROUGH 500/A - TABLE 1B |
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MODEL |
INPUT |
APPROX. |
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GAS |
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H |
VENT |
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CONNECTIONS |
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Approximate |
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RATE |
TANK |
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INLET |
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DIA |
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INLET |
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OUTLET |
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ship. Weight |
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BTU/Hr. |
CAP. |
A |
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B |
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C |
D |
E |
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F |
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G |
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I |
J |
TOP |
FRONT |
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BACK |
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TOP |
FRONT |
BACK |
STD. |
ASME |
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BTRC120 |
120,000 BTU/Hr. |
71 Gal |
69.75" |
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4.25" |
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59.50" |
50.87" |
19.69" |
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19" |
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1/2" |
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51.88" |
5" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
400 LBS |
NA |
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35 Kw/Hr |
268L |
177 cm |
11cm |
151 cm |
129 cm |
50 cm |
48 cm |
1/2" |
132 cm |
13 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
182 Kg |
NA |
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BTRC154 |
154,000 BTU/Hr |
81 Gal |
73.00" |
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4.25" |
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66.50" |
57.87" |
19.69" |
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19" |
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1/2" |
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59.00" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
470 LBS |
NA |
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45 Kw/Hr |
307L |
185 cm |
11cm |
169 cm |
147 cm |
50 cm |
48 cm |
1/2" |
150 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
213 Kg |
NA |
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BTRC180 |
180,000 BTU/Hr |
76 Gal |
70.50" |
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4.25" |
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63.75" |
55.13" |
17.75" |
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19" |
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1/2" |
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56.50" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
470 LBS |
NA |
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53 Kw/Hr |
288L |
179 cm |
11cm |
162 cm |
140 cm |
45 cm |
48 cm |
1/2" |
144 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
213 Kg |
NA |
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BTRC197 |
199,000 BTR/Hr |
95 Gal |
81.50" |
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4.25" |
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74.75" |
66.13" |
17.75" |
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19" |
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1/2" |
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67.50" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
603 LBS |
NA |
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58 kW/Hr |
360L |
207 cm |
11cm |
190 cm |
168 cm |
45 cm |
48 cm |
1/2" |
171 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
273 Kg |
NA |
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BTRC199 |
190,000 BTR/Hr |
76 Gal |
70.50" |
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4.25" |
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63.75" |
55.13" |
17.75" |
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19" |
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1/2" |
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56.50" |
6" |
27.75" |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
470 LBS |
NA |
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56 kW/Hr |
288L |
179 cm |
11cm |
162 cm |
140 cm |
45 cm |
48 cm |
1/2" |
144 cm |
15 cm |
71 cm |
1.50" |
1.50" |
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1.50" |
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1.50" |
1.50" |
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1.50" |
213 Kg |
NA |
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BTRC200 |
199,000 BTR/Hr |
100 Gal |
72.00" |
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4.50" |
|
65.13" |
55.87" |
19.75" |
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23" |
|
1/2" |
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56.38" |
6" |
30.25" |
1.50" |
2.00" |
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2.00" |
|
1.50" |
2.00" |
|
2.00" |
630 lbs |
725 lbs |
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58 kW/Hr |
379L |
183 cm |
12 cm |
165 cm |
142 cm |
50 cm |
58 cm |
1/2" |
143 cm |
15 cm |
77 cm |
1.50" |
2.00" |
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2.00" |
|
1.50" |
2.00" |
|
2.00" |
286 Kg |
329 Kg |
|||||
BTRC250 |
250000 BTR/Hr |
100 Gal |
72.00" |
|
4.50" |
|
65.13" |
55.87" |
19.75" |
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23" |
|
1/2" |
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56.38" |
8" |
30.25" |
1.50" |
2.00" |
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2.00" |
|
1.50" |
2.00" |
|
2.00" |
630 lbs |
725 lbs |
|
72 kW/Hr |
379L |
183 cm |
12 cm |
165 cm |
142 cm |
50 cm |
58 cm |
1/2" |
143 cm |
20 cm |
77 cm |
1.50" |
2.00" |
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2.00" |
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1.50" |
2.00" |
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2.00" |
286 Kg |
329 Kg |
|||||
BTRC251 |
251000 BTR/Hr |
65 Gal |
75.00" |
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4.50" |
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65.75" |
57.25" |
20.00" |
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NA |
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1/2" |
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58.8 |
8" |
27.75" |
NA |
1.50" |
|
1.50" |
|
NA |
1.50" |
|
1.50" |
750 lbs |
862 lbs |
|
73 kW/Hr |
246L |
191 cm |
12 cm |
167 cm |
145 cm |
51 cm |
|
NA |
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1/2" |
|
149 cm |
20 cm |
70 cm |
NA |
1.50" |
|
1.50" |
|
NA |
1.50" |
|
1.50" |
341 Kg |
391 Kg |
||
BTRC275 |
275,000 BTR/Hr |
100 Gal |
72.00" |
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4.50" |
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65.13" |
55.87" |
19.75" |
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23" |
|
1/2" |
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56.38" |
8" |
30.25" |
1.50" |
2.00" |
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2.00" |
|
1.50" |
2.00" |
|
2.00" |
630 lbs |
725 lbs |
|
80 kW/Hr |
379L |
183 cm |
12 cm |
165 cm |
142 cm |
50 cm |
58 cm |
1/2" |
143 cm |
20 cm |
77 cm |
1.50" |
2.00" |
|
2.00" |
|
1.50" |
2.00" |
|
2.00" |
286 Kg |
329 Kg |
|||||
BTRC305 |
305,000 BTR/Hr |
65 Gal |
75.00" |
|
4.50" |
|
65.75" |
57.25" |
20.00" |
|
NA |
|
1/2" |
|
58.8 |
8" |
27.75" |
NA |
1.50" |
|
1.50" |
|
NA |
1.50" |
|
1.50" |
750 lbs |
862 lbs |
|
89 kW/Hr |
246L |
191 cm |
12 cm |
167 cm |
145 cm |
51 cm |
|
NA |
|
1/2" |
|
149 cm |
20 cm |
70 cm |
NA |
1.50" |
|
1.50" |
|
NA |
1.50" |
|
1.50" |
341 Kg |
391 Kg |
||
BTRC365 |
365,000 BTR/Hr |
65 Gal |
75.00" |
|
4.50" |
|
65.75" |
57.25" |
20.00" |
|
NA |
|
3/4" |
|
58.8 |
8" |
27.75" |
NA |
1.50" |
|
1.50" |
|
NA |
1.50" |
|
1.50" |
750 lbs |
862 lbs |
|
107 kW/Hr |
246L |
191 cm |
12 cm |
167 cm |
145 cm |
51 cm |
|
NA |
|
3/4" |
|
149 cm |
20 cm |
70 cm |
NA |
1.50" |
|
1.50" |
|
NA |
1.50" |
|
1.50" |
341 Kg |
391 Kg |
||
BTRC400 |
399,000 BTR/Hr |
100 Gal |
75.50" |
|
4.50" |
|
67.50" |
58.25" |
26.75" |
|
23" |
|
3/4" |
|
59.00" |
8" |
30.25" |
1.50" |
2.00" |
|
2.00" |
|
1.50" |
2.00" |
|
2.00" |
760 lbs |
874 lbs |
|
117 kW/Hr |
379L |
192 cm |
12 cm |
171 cm |
148 cm |
68 cm |
58 cm |
3/4" |
150 cm |
20 cm |
77 cm |
1.50" |
2.00" |
|
2.00" |
|
1.50" |
2.00" |
|
2.00" |
345 Kg |
396 Kg |
|||||
BTRC500 |
500,000 BTR/Hr |
85 Gal |
82.25" |
|
4.50" |
|
73.50" |
65.25" |
25.50" |
|
21" |
|
1" |
|
65.8 |
8" |
27.75" |
1.50" |
1.50" |
|
1.50" |
|
1.50" |
1.50" |
|
1.50" |
745 lbs |
857 lbs |
|
147 kW/Hr |
322L |
209 cm |
|
12 cm |
|
187 cm |
166 cm |
65 cm |
|
53 cm |
|
1" |
|
167 cm |
20 cm |
70 cm |
1.50" |
1.50" |
|
1.50" |
|
1.50" |
1.50" |
|
1.50" |
338 Kg |
389 Kg |
2
TABLE 1C - HEATER PERFORMANCE DATABTR MODELS
|
INPUT |
APPROX. |
|
|
|
RECOVERY RATING CAPACITIES (GPHAND LPH) |
|
|
||||||||
|
RATE |
GAL |
EFF. |
30° F |
40° F |
50° F |
60° F |
70° F |
80° F |
90° F |
100° F |
110° F |
120° F |
130° F |
140° F |
|
MODEL |
BTUH |
CAP. |
% |
(-) 1 C |
4 C |
10 C |
15 C |
21 C |
27 C |
32 C |
38 C |
43 C |
49 C |
54 C |
60 C |
|
BTR |
120,000 BTUH |
71 Gal |
80 |
388 |
291 |
233 |
194 |
166 |
145 |
129 |
116 |
106 |
97 |
90 |
83 |
|
120 |
35 |
Kw/Hr |
268 L |
|
1469 |
1102 |
882 |
734 |
628 |
549 |
488 |
439 |
401 |
367 |
341 |
314 |
BTR |
154,000 BTUH |
81 Gal |
80 |
498 |
373 |
299 |
249 |
213 |
187 |
166 |
149 |
136 |
124 |
115 |
107 |
|
154 |
45 |
Kw/Hr |
306 L |
|
1885 |
1412 |
1132 |
943 |
806 |
708 |
628 |
564 |
515 |
469 |
435 |
405 |
BTR |
180,000 BTUH |
81 Gal |
80 |
579 |
434 |
347 |
289 |
248 |
217 |
193 |
174 |
158 |
145 |
134 |
124 |
|
180 |
53 |
Kw/Hr |
306L |
|
2192 |
1643 |
1314 |
1094 |
939 |
821 |
731 |
659 |
598 |
549 |
507 |
469 |
BTR |
199,000 BTUH |
100 Gal |
80 |
643 |
482 |
386 |
322 |
276 |
241 |
214 |
193 |
175 |
161 |
148 |
132 |
|
197 |
58 |
Kw/Hr |
379 L |
|
2434 |
1825 |
1461 |
1219 |
1045 |
912 |
810 |
731 |
662 |
609 |
560 |
500 |
BTR |
199,000 BTUH |
100 Gal |
80 |
643 |
482 |
386 |
322 |
276 |
241 |
214 |
193 |
175 |
161 |
148 |
132 |
|
198 |
58 |
Kw/Hr |
379L |
|
2434 |
1825 |
1461 |
1219 |
1045 |
912 |
810 |
731 |
662 |
609 |
560 |
500 |
BTR |
190,000 BTUH |
81 Gal |
80 |
614 |
461 |
368 |
307 |
263 |
230 |
205 |
184 |
167 |
154 |
142 |
132 |
|
199 |
56 |
Kw/Hr |
306 L |
|
2324 |
1745 |
1393 |
1162 |
996 |
871 |
776 |
697 |
632 |
583 |
538 |
500 |
BTR |
199,000 BTUH |
100 Gal |
80 |
643 |
482 |
386 |
322 |
276 |
241 |
214 |
193 |
175 |
161 |
148 |
132 |
|
200 |
58 |
Kw/Hr |
379 L |
|
2434 |
1825 |
1461 |
1219 |
1045 |
912 |
810 |
731 |
662 |
609 |
560 |
500 |
BTR |
250,000 BTUH |
100 Gal |
80 |
808 |
606 |
485 |
404 |
346 |
303 |
269 |
242 |
220 |
202 |
186 |
173 |
|
250 |
73 |
Kw/Hr |
379 L |
|
3059 |
2294 |
1835 |
1529 |
1311 |
1147 |
1020 |
918 |
834 |
765 |
706 |
655 |
BTR |
251,000 BTUH |
65 Gal |
80 |
811 |
608 |
487 |
406 |
348 |
304 |
270 |
243 |
221 |
203 |
187 |
174 |
|
251 |
73 |
Kw/Hr |
246 L |
|
3071 |
2303 |
1843 |
1536 |
1316 |
1152 |
1024 |
921 |
838 |
768 |
709 |
658 |
BTR |
275,000 BTUH |
100 Gal |
80 |
889 |
667 |
533 |
444 |
381 |
333 |
296 |
267 |
242 |
222 |
205 |
190 |
|
275 |
80 |
Kw/Hr |
379 L |
|
3365 |
2524 |
2019 |
1682 |
1442 |
1262 |
1122 |
1009 |
918 |
841 |
776 |
721 |
BTR |
305,000 BTUH |
65 Gal |
80 |
986 |
739 |
592 |
493 |
423 |
370 |
329 |
296 |
269 |
246 |
228 |
211 |
|
305 |
89 |
Kw/Hr |
246 L |
|
3732 |
2799 |
2239 |
1866 |
1599 |
1399 |
1244 |
1120 |
1018 |
933 |
861 |
800 |
BTR |
365,000 |
85 Gal |
80 |
1180 |
885 |
708 |
590 |
506 |
442 |
393 |
354 |
322 |
295 |
272 |
253 |
|
365 |
107 Kw/Hr |
322 L |
|
4466 |
3349 |
2680 |
2233 |
1914 |
1675 |
1489 |
1340 |
1218 |
1116 |
1031 |
957 |
|
BTR |
399,000 BTUH |
100 Gal |
80 |
1293 |
970 |
776 |
646 |
554 |
485 |
431 |
388 |
353 |
323 |
298 |
277 |
|
400 |
117 Kw/Hr |
379 L |
|
4894 |
3671 |
2936 |
2447 |
2097 |
1835 |
1631 |
1468 |
1335 |
1224 |
1129 |
1049 |
|
BTR |
500,000 BTUH |
85 Gal |
80 |
1616 |
1212 |
970 |
808 |
693 |
606 |
539 |
485 |
441 |
404 |
373 |
346 |
|
500 |
147 Kw/Hr |
322 L |
|
6118 |
4588 |
3671 |
3059 |
2622 |
2294 |
2039 |
1835 |
1668 |
1529 |
1412 |
1311 |
|
TABLE 1D - HEATER PERFORMANCE DATABTR(C) MODELS
|
INPUT |
APPROX. |
|
|
|
RECOVERY RATING CAPACITIES (GPHAND LPH) |
|
|
||||||||
|
RATE |
GAL |
EFF. |
30° F |
40° F |
50° F |
60° F |
70° F |
80° F |
90° F |
100° F |
110° F |
120° F |
130° F |
140° F |
|
MODEL |
BTUH |
CAP. |
% |
(-) 1 C |
4 C |
10 C |
15 C |
21 C |
27 C |
32 C |
38 C |
43 C |
49 C |
54 C |
60 C |
|
BTRC |
120,000 BTUH |
71 Gal |
80 |
388 |
291 |
233 |
194 |
166 |
145 |
129 |
116 |
106 |
97 |
90 |
83 |
|
120 |
35 |
Kw/Hr |
268 L |
|
1469 |
1102 |
882 |
734 |
628 |
549 |
488 |
439 |
401 |
367 |
341 |
314 |
BTRC |
154,000 BTUH |
81 Gal |
80 |
498 |
373 |
299 |
249 |
213 |
187 |
166 |
149 |
136 |
124 |
115 |
107 |
|
154 |
45 |
Kw/Hr |
306 L |
|
1885 |
1412 |
1132 |
943 |
806 |
708 |
628 |
564 |
515 |
469 |
435 |
405 |
BTRC |
180,000 BTUH |
76 Gal |
80 |
579 |
434 |
347 |
289 |
248 |
217 |
193 |
174 |
158 |
145 |
134 |
124 |
|
180 |
53 |
Kw/Hr |
288L |
|
2192 |
1643 |
1314 |
1094 |
939 |
821 |
731 |
659 |
598 |
549 |
507 |
469 |
BTRC |
199,000 BTUH |
95 Gal |
80 |
643 |
482 |
386 |
322 |
276 |
241 |
214 |
193 |
175 |
161 |
148 |
132 |
|
197 |
58 |
Kw/Hr |
360 L |
|
2434 |
1825 |
1461 |
1219 |
1045 |
912 |
810 |
731 |
662 |
609 |
560 |
500 |
BTRC |
190,000 BTUH |
76 Gal |
80 |
614 |
461 |
368 |
307 |
263 |
230 |
205 |
184 |
167 |
154 |
142 |
132 |
|
199 |
56 |
Kw/Hr |
288 L |
|
2324 |
1745 |
1393 |
1162 |
996 |
871 |
776 |
697 |
632 |
583 |
538 |
500 |
BTRC |
199,000 BTUH |
100 Gal |
80 |
643 |
482 |
386 |
322 |
276 |
241 |
214 |
193 |
175 |
161 |
148 |
132 |
|
200 |
58 |
Kw/Hr |
379 L |
|
2434 |
1825 |
1461 |
1219 |
1045 |
912 |
810 |
731 |
662 |
609 |
560 |
500 |
BTRC |
250,000 BTUH |
100 Gal |
80 |
808 |
606 |
485 |
404 |
346 |
303 |
269 |
242 |
220 |
202 |
186 |
173 |
|
250 |
73 |
Kw/Hr |
379 L |
|
3059 |
2294 |
1835 |
1529 |
1311 |
1147 |
1020 |
918 |
834 |
765 |
706 |
655 |
BTRC |
251,000 BTUH |
65 Gal |
80 |
811 |
608 |
487 |
406 |
348 |
304 |
270 |
243 |
221 |
203 |
187 |
174 |
|
251 |
73 |
Kw/Hr |
246 L |
|
3071 |
2303 |
1843 |
1536 |
1316 |
1152 |
1024 |
921 |
838 |
768 |
709 |
658 |
BTRC |
275,000 BTUH |
100 Gal |
80 |
889 |
667 |
533 |
444 |
381 |
333 |
296 |
267 |
242 |
222 |
205 |
190 |
|
275 |
80 |
Kw/Hr |
379 L |
|
3365 |
2524 |
2019 |
1682 |
1442 |
1262 |
1122 |
1009 |
918 |
841 |
776 |
721 |
BTRC |
305,000 BTUH |
65 Gal |
80 |
986 |
739 |
592 |
493 |
423 |
370 |
329 |
296 |
269 |
246 |
228 |
211 |
|
305 |
89 |
Kw/Hr |
246 L |
|
3732 |
2799 |
2239 |
1866 |
1599 |
1399 |
1244 |
1120 |
1018 |
933 |
861 |
800 |
BTRC |
360,000 BTUH |
65 Gal |
80 |
1164 |
873 |
698 |
582 |
499 |
436 |
388 |
349 |
317 |
291 |
269 |
249 |
|
365 |
105 Kw/Hr |
246 L |
|
4405 |
3304 |
2643 |
2202 |
1888 |
1652 |
1468 |
1321 |
1201 |
1101 |
1016 |
944 |
|
BTRC |
399,000 BTUH |
100 Gal |
80 |
1293 |
970 |
776 |
646 |
554 |
485 |
431 |
388 |
353 |
323 |
298 |
277 |
|
400 |
117 Kw/Hr |
379 L |
|
4894 |
3671 |
2936 |
2447 |
2097 |
1835 |
1631 |
1468 |
1335 |
1224 |
1129 |
1049 |
|
BTR |
500,000 BTUH |
85 Gal |
80 |
1616 |
1212 |
970 |
808 |
693 |
606 |
539 |
485 |
441 |
404 |
373 |
346 |
|
500 |
147 Kw/Hr |
322 L |
|
6118 |
4588 |
3671 |
3059 |
2622 |
2294 |
2039 |
1835 |
1668 |
1529 |
1412 |
1311 |
|
3
TABLE OF CONTENTS |
|
|
Page |
ROUGH-IN-DIMENSIONS ---------------------------------------- |
2-3 |
TABLE OF CONTENTS ---------------------------------------------- |
4 |
FOREWORD ----------------------------------------------------------- |
4 |
GENERAL SAFETY INFORMATION ------------------------------ |
5 |
Chemical Vapor Corrosion ----------------------------------------- |
5 |
Improper Combustion ----------------------------------------------- |
5 |
Liquid Petroleum Models ------------------------------------------- |
5 |
Extended Non-Use Periods ---------------------------------------- |
5 |
Insulation Blankets ------------------------------------------------- |
5-6 |
High Altitude Installation -------------------------------------------- |
6 |
FEATURES -------------------------------------------------------------- |
6 |
The Eliminator (Self-Cleaning Sysytem) ----------------------- |
6 |
High Limit Switch (E.C.O.) ---------------------------------------- |
6-7 |
Electronic Ignition Control ------------------------------------------ |
7 |
Automatic Flue Damper Device ----------------------------------- |
7 |
Circulating Pump ----------------------------------------------------- |
7 |
Dishwashing Machine Requirement -------------------------- |
7-8 |
INSTALLATION INSTRUCTIONS ---------------------------------- |
8 |
Uncrating ---------------------------------------------------------------- |
8 |
Locating The Heater ------------------------------------------------- |
8 |
Levelling ----------------------------------------------------------------- |
8 |
Clearances ----------------------------------------------------------- |
8-9 |
Installation on Combustible Flooring --------------------------- |
9 |
Hard Water -------------------------------------------------------------- |
9 |
Air Requirements ------------------------------------------------- |
9-10 |
Unconfined Space -------------------------------------------------- |
9 |
Confined Space ----------------------------------------------------- |
10 |
Vent Reducer ---------------------------------------------------------- |
10 |
Venting ------------------------------------------------------------------ |
10 |
Multiple Heater Manifold ------------------------------------------- |
10 |
Water Line Connections ------------------------------------------- |
10 |
Technical Data Venting ---------------------------------------- |
11-12 |
Water (Potable) Heating and Space Heating ---------------- |
13 |
Thermometers (Not Supplied) ----------------------------------- |
13 |
Relief Valve ------------------------------------------------------------ |
13 |
Gas Piping -------------------------------------------------------- |
13-14 |
Gas piping and Dirt Leg Installation ----------------------- |
14-15 |
Gas Pressure Regulator ------------------------------------------- |
15 |
|
Page |
Grounding Instructions --------------------------------------------- |
15 |
Heater Wiring --------------------------------------------------------- |
15 |
INSTALLATION DIAGRAMS ----------------------------------- |
15-21 |
MANIFOLDS ----------------------------------------------------------- |
22 |
MECHANICAL VENTING ------------------------------------------- |
23 |
Single Unit Installation --------------------------------------------- |
23 |
Vent Installation ------------------------------------------------------- |
23 |
Multiple Unit Installation -------------------------------------------- |
23 |
OPERATION ----------------------------------------------------------- |
24 |
General ----------------------------------------------------------------- |
24 |
Filling -------------------------------------------------------------------- |
24 |
Purging ----------------------------------------------------------------- |
24 |
Lighting and Operating Labels ------------------------------ |
25-26 |
Water Temperature Control --------------------------------------- |
27 |
Testing Damper Control ------------------------------------------- |
27 |
Checking Venting ----------------------------------------------- |
27-28 |
PREVENTIVE MAINTENANCE ------------------------------------ |
28 |
Check The Pilot ------------------------------------------------------- |
28 |
Pilot Burner ------------------------------------------------------------ |
28 |
Main Burner ------------------------------------------------------- |
28-29 |
Gas Valves ------------------------------------------------------------- |
29 |
Checking The Input -------------------------------------------------- |
29 |
Venting System ------------------------------------------------------- |
30 |
Remote Storage Tank Temperature Control ----------------- |
30 |
Relief Valve ------------------------------------------------------------ |
30 |
Hot Water Odor ------------------------------------------------------- |
30 |
Anode Rod Inspection ---------------------------------------------- |
30 |
Recommended Procedure For Periodic Removal |
|
of Lime Deposits From Tank Type Commercial |
|
Water Heaters --------------------------------------------------- |
30-31 |
Deliming Solvents --------------------------------------------------- |
31 |
Tank Cleanout Procedures ----------------------------------- |
31-32 |
Troubleshooting Ignition Module System --------------------- |
32 |
SERVICE --------------------------------------------------------------- |
32 |
Electrical Servicing -------------------------------------------------- |
32 |
Replacement Parts -------------------------------------------------- |
32 |
Effikal Flue Damper Troubleshooting Guide ----------------- |
33 |
Operational Checklist ----------------------------------------------- |
34 |
Limited Warranty ----------------------------------------------------- |
35 |
FOREWORD
These designs comply with ANSI Z21.10.3/CSA 4.3 M98 as an automatic circulating or automatic storage tank type water heater.
Heaters having an input of 305,000 (89 Kwh), 365,000 (107 Kwh), 399,000 (117 Kwh) and 500,000 (147 Kwh) Btuh with a recovery rating of 277.3 gph (1049 Lph) or more also comply with ANSI Z21.10.3 as an automatic instantaneous type heater.
Detailed installation diagrams are found in this manual. These diagrams will serve to provide the installer with a reference for the materials and methods of piping necessary. It is highly essential that all water, gas piping and wiring be installed as shown on the diagrams.
Particular attention should be given to the installation of thermometers at the locations indicated on the diagrams as these are necessary for checking the proper functioning of the heater.
The heater is designed to operate on natural or propane gases. HOWEVER, MAKE SURE the gas on which the heater will operate
is the same as that specified on the heater model and rating plate.
These heaters may be installed on combustible floors.
In addition to these instructions, the equipment shall be installed in accordance with those installation regulations in force in the local area where the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction should be consulted before installations are made.
The installation must conform to these instructions and the local code authority having jurisdiction. In the absence of local codes, the installation must comply with the latest editions of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and the National Electrical Code, NFPA 70, CAN/CSA B149.1-00, and CSA 2 C22.1. The former is available from the Canadian Standards Association, 8501 East Pleasant Valley Road, Cleveland, OH 44131, and both documents are available from the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.
4
GENERAL SAFETY
INFORMATION
PRECAUTIONS
DO NOT USE THIS APPLIANCE IFANY PART HAS BEEN UNDER WATER. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.
IF THE UNIT IS EXPOSED TO THE FOLLOWING, DO NOT OPERATE HEATER UNTIL ALL CORRECTIVE STEPS HAVE BEEN MADE BY A QUALIFIED SERVICEMAN.
1.EXTERNAL FIRE.
2.DAMAGE.
3.FIRING WITHOUT WATER.
4.SOOTING
CHEMICAL VAPOR CORROSION
WARNING
CORROSION OF THE FLUEWAYS AND VENT SYSTEM MAY OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN CHEMICAL VAPORS. SUCH CORROSION MAY RESULT IN FAILURE AND RISK OF ASPHYXIATION.
Spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium and sodium chloride (water softener salt), waxes, and process chemicals and typical compounds which are potentially corrosive. Do not store products of this sort near the heater. Also, air which is brought in contact with a the heater should not contain any of these chemicals. If necessary, uncontaminated air should be obtained from remote or outside sources. The limited warranty is voided when failure of water heater is due to a corrosive atmosphere. (Refer to the limited warranty for complete terms and conditions.)
IMPROPER COMBUSTION
WARNING
ATTIC AND/OR EXHAUST FANS OPERATING ON THE PREMISES WITH A WATER HEATER CAN RESULT IN CARBON MONOXIDE POISONING AND DEATH.
OPERATION OF THESE FANS CAN PRODUCE A NEGATIVE DRAFT IN THE AREA OF THE WATER HEATER PREVENTING THE PRODUCTS OF COMBUSTION FROM EXHAUSTING THROUGH THE CHIMNEY OR VENT PIPE.
The venting of the water heater should be inspected by a qualified service technician at the time of installation and periodically thereafter to ensure a down-draft condition does not exist.
DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATING AIR. ADEQUATE AIR FOR COMBUSTION AND VENTILATION MUST BE PROVIDED FOR SAFE OPERATION.
LIQUID PETROLEUM MODELS
Water heaters for propane or liquefied petroleum gas (LPG) are different from natural gas models. A natural gas heater will not function safely on LP gas and no attempt should be made to convert a heater from natural gas to LP gas.
LP gas must be used with great caution. It is highly explosive and heavier than air. It collects first in the low areas making its odor difficult to detect at nose level. If LP gas is present or even suspected, do not attempt to find the cause yourself. Go to a neighbor's house, leaving your doors open to ventilate the house, then call your gas supplier or service agent. Keep area clear until a service call has been made.
At times you may not be able to smell an LP gas leak. One cause is odor fade, which is a loss of the chemical odorant that gives LP gas its distinctive smell. Another cause can be your physical condition, such as having a cold or diminishing sense of smell with age. For these reasons, the use of a propane gas detector is recommended.
IF YOU EXPERIENCE AN OUT-OF-GAS SITUATION, DO NOT TRY TO RELIGHT APPLIANCES YOURSELF, Ask your LP delivery person to relight pilots for you. Only trained LP professionals should conduct the required safety checks in accordance with industry standards.
EXTENDED NON-USE PERIODS
WARNING
HYDROGEN GAS CAN BE PRODUCED IN A HOT WATER SYSTEM SERVED BY THIS HEATER THAT HAS NOT BEEN USED FOR A LONG PERIOD OF TIME (GENERALLY TWO WEEKS OR MORE). HYDROGEN GAS IS EXTREMELY FLAMMABLE. To reduce the risk of injury under these conditions, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system. If hydrogen is present, there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow. THERE SHOULD BE NO SMOKING OR OPEN FLAME NEAR THE FAUCET AT THE TIME IT IS OPEN.
INSULATION BLANKETS
Insulation blankets available to the general public for external use on gas water heaters are not approved for use on your A.O. Smith water heater. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank water heaters. Your A.O. Smith water heater meets or exceeds the ASHRAE/IES 90.1b-1992 standards with respect to insulation and standby loss requirement making an insulation blanket unnecessary.
WARNING
Should you choose to apply an insulation blanket to this heater, you should follow these instructions. Failure to follow these instructions can result in fire, asphyxiation , serious personal injury or death.
•Do not apply insulation to the top of the water heater, as this will interfere with safe operation of drafthood.
•Do not cover the gas valve or temperature & pressure relief valve.
5
•Do not cover the instruction manual. Keep it on the side of the water heater or nearby for future reference.
•Do not allow insulation to come within 2” (5 cm) of the burners, to prevent blockage of combustion air flow to the burners.
•Do not allow insulation to come within 9” (23 cm) of floor, (within 2” (5 cm) of bottom cover) to prevent blockage of combustion air flow to the burners.
•Do inspect the insulation blanket frequently to make sure it does not sag, thereby obstructing combustion air flow.
•Do obtain new labels from A.O. Smith for placement on the blanket directly over the existing labels.
HIGH ALTITUDE INSTALLATIONS
WARNING
INSTALLATIONS ABOVE 2000 FEET (610 METERS) REQUIRE REPLACEMENT OF THE BURNER ORIFICES IN ACCORDANCE WITH SECTION 8.1.2 OF THE NATIONALFUEL GAS CODE (ANSI Z223.1). FOR CANADIAN INSTALLATIONS CONSULT CANADIAN INSTALLATIONS CODES AND CAN/CSA B149.1-00. FAILURE TO REPLACE THE ORIFICES WILL RESULT IN IMPROPERAND INEFFICIENT OPERATION OF THEAPPLIANCE RESULTING IN THE PRODUCTION OF INCREASED LEVELS OF CARBON MONOXIDE GAS IN EXCESS OF SAFE LIMITS WHICH COULD RESULT IN SERIOUS PERSONAL INJURY OR DEATH.
You should contact your gas supplier for any specific changes which may be required in your area.
As elevation above sea level is increased, there is less oxygen per cubic foot of air. Therefore, the heater input rate should be reduced at high altitudes for satisfactory operation with the reduced oxygen supply. Failure to make this reduction would result in an overfiring of the heater causing sooting, poor combustion and/or unsatisfactory heater performance.
U.S. REQUIREMENTS
Ratings specified by manufacturers for most appliances apply for elevations up to 2000 feet (610 m). For elevations above 2000 feet (610), ratings must be reduced at the rate of 4% for each 1000 feet (305 m) above sea level. For example, if a heater is rated at 120,000 Btuh (35 Kwh) at sea level, to rate the heater at 4000 feet (1219 m), you subtract 4 (once for each thousand feet) x 04 (4% input reduction) x 120,000 (original rating) from the original rating. Therefore, to calculate the input rating at 4,000 feet (121.9 m): 4 x .04 x 120,000 =19,200 Btuh (5.6 Kwh), 120,000 (35 Kwh) - 19,200 (5.6 Kwh) = 100,800 Btuh (29.4 Kwh). At 6000 feet (1829 m) the correct input rating should be 91,200 Btuh (26.7 Kwh).
CANADIAN REQUIREMENTS
Appliances with inputs up to and including 400,000 BTU (117.2 Kw) must be factory equipped with orifices for operation at specific elevations. Standard (sea level) orifices permit operation up to 2000' (610 m) elevation. For operation between 2000' (610 m) and 4500' (1370 m) specify "HIGH ALTITUDE OPERATION" when ordering the heater(s). For operation above 4500' (2370 m) consult factory before ordering.
Field conversion for operation at altitudes other than that specified on the heater rating plate is not permitted.
6
The input reduction is primarily achieved by reducing the size of the main burner orifices. To do this, the main burner orifices require replacement with orifices sized for the particular installation elevation. Correct orifice sizing and parts may be obtained from A.O. Smith Water Products Company. When ordering, be sure to state the model number and the altitude of the location where the water heater is being installed.
Upon completion of derating of the heater, adjustment to the gas pressure regulator may be required. See CHECKING THE INPUT section in this manual for inlet and manifold pressure requirements.
Also due to the input rating reduction required at high altitudes, the output rating of the appliance is reduced and should be compensated for in the sizing of the equipment for application.
FEATURES
THE ELIMINATOR
(SELF-CLEANING SYSTEM)
These units include The Eliminator (Self-Cleaning System) installed in the front water inlet. See figure 2. The Eliminator must be oriented correctly for proper function. There is a marked range on the pipe nipple portion of the Eliminator, that must be aligned with the top of the inlet spud. A label above the jacket hole has an arrow that will point to the marked portion of the pipe nipple if the orientation is correct. If the arrow does not point within the marked range on the pipe nipple, adjust the pipe nipple to correct. A pipe union is supplied with the Eliminator to reduce the probability of misaligning the Eliminator accidentally while tightening the connection to the inlet water supply line. Improper orientation of the Eliminator can cause poor performance of the heater and can significantly reduce outlet water temperatures during heavy draws.
NOTE: The inlet tube may have 1, 3 or 7 cross-tubes. FIGURE2
For proper function, The Eliminator must be oriented correctly. There is a marked range on the pipe nipple that must be aligned with the top of the inlet spud (check for label on the appliance) to assure proper orientation. Please check to confirm that the marked range is in alignment with the top of the spud. A pipe union is supplied with The Eliminator to help eliminate the possibility of changing the orientation by accidentally overtightening the inlet supply line. Improper orientation of The Eliminator may cause temperature build-up issues or spells of colder than usual water temperatures.
HIGH LIMIT SWITCH (E.C.O.)
The dual bulb controller (fig. 3) contains the high limit (energy cutoff) sensor. The high limit switch interrupts main burner gas flow should the water temperature reach 205°F (96°C).
In the event of high limit switch operation, the appliance cannot be restarted unless the water temperature is reduced by at least 200F (11°C) and the high limit reset button on front of limit control (fig. 3) is depressed.
Continued manual resetting of high limit control, preceded by higher than usual water temperature is evidence of high limit switch operation. The following is a possible reason for high limit switch operation.
•A malfunction in the thermostatic controls would allow the gas valve to remain open causing water temperature to exceed the thermostat setting. The water temperature would continue to rise until high limit switch operation.
Contact your dealer or servicer if continued high limit switch operation occurs.
DUAL-BULB THERMOSTAT
(COVER REMOVED)
FIGURE 3
Continued pilot outage preceded by higher than usual water temperature is evidence of high limit switch operation. Contact your dealer or servicer to determine the reason for operation.
ELECTRONIC IGNITION CONTROL
Each heater is equipped with a Honeywell ignition module. The solid state ignition control, fig.4, ignites the pilot burner gas by creating a spark at the pilot assembly. Pilot gas is ignited and burns during each running cycle. The main burner and pilot gases are cut off during the OFF cycle. Pilot gas ignition is proven by the pilot sensor. Main burner ignition will not occur if the pilot sensor does not first sense pilot ignition.
HONEYWELL IGNITION MODULE
S8600M Continuous Re-Try
FIGURE4
AUTOMATIC FLUE DAMPER DEVICE
All units are equipped with an automatic flue damper that reduces heat loss during the OFF cycles. The automatic flue damper drive assembly is a field replaceable part and may be obtained by contacting A. O. Smith Water Products Company, Product
Service Division, 5621 W. 115th Street, Alsip, IL 60803, 1-800- 433-2545, Canada, contact A.O. Smith Enterprises LTD., P.O. Box, 310 - 768 Erie Street, Stratford, Ontario, Canada N5A 6T3, 1-800-265-8520.
Each automatic flue damper drive assembly is equipped with a “Service Switch”, as shown in figure 5.
FIGURE5
The “Service Switch” has 2 positions: AUTOMATIC OPERATION and HOLD OPEN DAMPER. For normal operation the switch should be in the AUTOMATIC OPERATION position.
If there is a problem with the damper the “Service Switch” can be placed in the HOLD OPEN DAMPER position. When the switch is placed in the HOLD OPEN DAMPER position the damper disc will rotate to the open position and the heater may be used until vent assembly is repaired or replaced. DO NOT turn the damper disc manually; damage will occur to the drive assembly if operated manually. Refer to TESTING DAMPER OPERATION section of this manual for additional information.
CIRCULATING PUMP
A circulating pump is used when a system requires a circulating loop or there is a storage tank used in conjunction with the heater. Refer to the piping diagrams in this manual for electrical hookup information and install in accordance with the latest version of the National Electric Code ANSI/NFPA No. 70. For Canada refer to Canadian Code CSA C22.1.
Only all bronze circulators should be used with commercial water heaters.
Although circulators are oiled and operated by the manufacturer some circulators must be oiled again before operating. Please refer to manufacturer’s instructions.
DISHWASHING MACHINE REQUIREMENT
These appliances meet the National Sanitation Foundation Standard for sanitary installations when used with the following leg kits, Part No’s. 6570-0 and 6570-7.
All dishwashing machines meeting the National Sanitation Foundation requirements are designed to operate with water flow pressures between 15 and 25 psi (103 kPa and 173 kPa). Flow pressures above 25 psi (173 kPa), or below 15 psi (103 kPa), will result in improperly sanitized dishes. Where pressures are high, a water pressure reducing or flow regulating control valve should be used in 1800F (82°C) line to the dishwashing machine, and should be adjusted to deliver water between these limits.
7
The National Sanitation Foundation also recommends circulation of 1800F (82°C) water. Where this is done, the circulation should be very gentle so that it does not cause any unnecessary turbulence inside the water heater. The circulation should be just enough to provide 1800F (82°C) water at the point of take-off to the dishwashing machine. Adjust flow by means of the plug cock in the circulating line.
INSTALLATION INSTRUCTIONS
REQUIRED ABILITY
INSTALLATION OR SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED. PLUMBING, AIR SUPPLY, VENTING, GAS SUPPLYAND ELECTRICAL WORKARE REQUIRED.
WARNING
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH.
UNCRATING
The heater is shipped with the flue damper already installed. The wiring conduit runs from the thermostat to the damper drive cover. Before turning unit on, check to make sure the wiring conduit is securely plugged into damper drive.
LOCATING THE HEATER
When installing the heater, consideration must be given to proper location. Location selected should be as close to the stack or chimney as practicable, with adequate air supply and as centralized with the piping system as possible.
WARNING
THERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH AS GAS WATER HEATERS IN ROOMS, GARAGES OR OTHER AREAS WHERE GASOLINE, OTHER FLAMMABLE LIQUIDS OR ENGINE DRIVEN EQUIPMENT OR VEHICLES ARE STORED, OPERATED OR REPAIRED. FLAMMABLE VAPORS ARE HEAVY AND TRAVEL ALONG THE FLOOR AND MAY BE IGNITED BY THE HEATER’S PILOT OR MAIN BURNER FLAMES CAUSING FIRE OR EXPLOSION. SOME LOCAL CODES PERMIT OPERATION OF GAS APPLIANCES IN SUCH AREAS IF THEY ARE INSTALLED 18” (.50 m). OR MORE ABOVE THE FLOOR. THIS MAY REDUCE THE RISK IF LOCATION IN SUCH AN AREA CANNOT BE AVOIDED.
DO NOT INSTALL THIS WATER HEATER DIRECTLY ON A CARPETED FLOOR. A FIRE HAZARD MAY RESULT. Instead the water heater must be placed on a metal or wood panel extending beyond the full width and depth by at least 3 inches (7.6 cm) in any direction. If the heater is installed in a carpeted alcove, the entire floor shall be covered by the panel. Also, see the DRAIN REQUIREMENTS.
THE HEATER SHALL BE LOCATED OR PROTECTED SO IT IS NOT SUBJECT TO PHYSICAL DAMAGE BY A MOVING VEHICLE.
WARNING
FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST
NEVER BE PLACED ON ORADJACENT TO THE HEATER. OPEN CONTAINERS OR FLAMMABLE MATERIAL SHOULD NOT BE STORED OR USED IN THE SAME ROOM WITH THE HEATER.
THE HEATER MUST NOT BE LOCATED IN AN AREA WHERE IT WILL BE SUBJECT TO FREEZING.
LOCATE IT NEAR A FLOOR DRAIN. THE HEATER SHOULD BE LOCATED IN AN AREA WHERE LEAKAGE FROM THE HEATER OR CONNECTIONS WILL NOT RESULT IN DAMAGE TO THE ADJACENT AREA OR TO LOWER FLOORS OF THE STRUCTURE.
WHEN SUCH LOCATIONS CANNOT BE AVOIDED, A SUITABLE DRAIN PAN SHOULD BE INSTALLED UNDER THE HEATER. Such pans should be fabricated with sides at least 2" (5 cm) deep, with length and width at least 2" (5 cm) greater than the diameter of the heater and must be piped to an adequate drain. The pan must not restrict combustion air flow.
For appliance installation locations with elevations above 2000 feet (610 m), refer to HIGH ALTITUDE INSTALLATIONS section of this manual for input reduction procedure.
LEVELING
If the unit is not level, insert the bolts which were used in crating into the legs to correct this condition.
CLEARANCES
These heaters are approved for installation on combustible flooring in an alcove when the minimum clearance from any combustion construction are followed as indicated in figure 6 and Table 2.
The following units are approved for installation with side, rear and ceiling clearances as indicated below:
|
A |
B |
C |
D |
|
(RIGHT SIDE) |
(LEFT SIDE) |
(BACK) |
(CEILING) |
120 |
1” (2.54 cm) |
1” (2.54 cm) |
1” (2.54 cm) |
12” (30.48 cm) |
154 |
1” (2.54 cm) |
1” (2.54 cm) |
1” (2.54 cm) |
12” (30.48 cm) |
*180 |
1” (2.54 cm) |
1” (2.54 cm) |
1” (2.54 cm) |
12” (30.48 cm) |
*197 |
1” (2.54 cm) |
1” (2.54 cm) |
1” (2.54 cm) |
12” (30.48 cm) |
198 |
1” (2.54 cm) |
1” (2.54 cm) |
1” (2.54 cm) |
12” (30.48 cm) |
*199 |
1” (2.54 cm) |
1” (2.54 cm) |
1” (2.54 cm) |
12” (30.48 cm) |
200 |
1” (2.54 cm) |
1” (2.54 cm) |
1” (2.54 cm) |
12” (30.48 cm) |
250 |
2” (5.08 cm) |
2” (5.08 cm) |
2” (5.08 cm) |
12” (30.48 cm) |
251 |
2” (5.08 cm) |
2” (5.08 cm) |
2” (5.08 cm) |
12” (30.48 cm) |
275 |
2” (5.08 cm) |
2” (5.08 cm) |
2” (5.08 cm) |
12” (30.48 cm) |
305 |
2” (5.08 cm) |
2” (5.08 cm) |
2” (5.08 cm) |
12” (30.48 cm) |
**365 |
3” (7.75 cm) |
3” (7.75 cm) |
3” (7.75 cm) |
12” (30.48 cm) |
400 |
3” (7.75 cm) |
3” (7.75 cm) |
3” (7.75 cm) |
12” (30.48 cm) |
500 |
5” (12.7 cm) |
5” (12.7 cm) |
5” (12.7 cm) |
20” (50.80 cm) |
*The BTR(C) version has a 2” (5.08cm) to sides and rear.
**The BTR(C) version has a 4” (10.16cm) to sides and rear.
TABLE 2
In all installations the minimum combustible clearances from any draft hood surface or vent piping shall be 6" (16cm). Vent piping passing through a combustible wall or ceiling must be a continuous run (no joints) and retain the 6" (16cm) clearance unless an approved reducing thimble is used.
8
ILLUSTRATION OF MINIMUM COMBUSTIBLE CLEARANCES INANALCOVE
FIGURE6
A service clearance of 24" (61cm) should be maintained from serviceable parts, such as relief valves, flue baffles, flue damper devices, thermostats, cleanout openings or drain valves.
INSTALLATION ON COMBUSTIBLE FLOORING
The BTR/BTRC 500 is approved for installations on combustible flooring when installed with leg kit number 194230-000.
FIGURE7
1.Unit needs to be lifted in a way not to damage unit or laid on it’s side to access the bottom of the legs.
2.Slide leg extension under leg and the bolt up through the bottom hole located in the bottom of the leg.
3.Once in place, screw nut down and secure.
4.Front of leg should line up with front of leg extension as shown to make sure weight of unit is distributed through the leg extension.
HARD WATER
Where hard water conditions exist, water softening or the threshold type of water treatment is recommended. This will protect the dishwashers, coffee urns, water heaters, water piping and other equipment.
See MAINTENANCE section for details of tank cleanout procedure.
AIR REQUIREMENTS
REFER TO THE LATEST EDITION OF THE "NATIONAL FUEL GAS CODE" ANSI Z223.1/NFPA 54. FOR CANADA CONSULT CAN/CSA B149.1-00.
WARNING
KEEP APPLIANCE AREA CLEAR AND FREE OF COMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLES, VAPORS AND LIQUIDS.
DO NOT OBSTRUCT THE FLOW OF COMBUSTION OR VENTILATINGAIR.
WARNING
FOR SAFE OPERATION PROVIDE ADEQUATE AIR FOR COMBUSTION AND VENTILATION. AN INSUFFICIENT SUPPLY OF AIR WILL CAUSE RECIRCULATION OF COMBUSTION PRODUCTS RESULTING IN AIR CONTAMINATION THAT MAY BE HAZARDOUS TO LIFE. SUCH A CONDITION OFTEN WILL RESULT IN AYELLOW, LUMINOUS BURNER FLAME, CAUSING CARBONING OR SOOTING OF THE COMBUSTION CHAMBER, BURNERS AND FLUE TUBES AND CREATES A RISK OF ASPHYXIATION.
Where an exhaust fan is supplied in the same room with a heater, sufficient openings for air must be provided in the walls. UNDERSIZED OPENINGS WILL CAUSE AIR TO BE DRAWN INTO THE ROOM THROUGH THE CHIMNEY, CAUSING POOR COMBUSTION. SOOTING MAY RESULT IN SERIOUS DAMAGE TO THE HEATER AND RISK OF FIRE OR EXPLOSION.
UNCONFINEDSPACE
In buildings of conventional frame, brick, or stone construction, unconfined spaces may provide adequate air for combustion, ventilation and draft hood dilution.
If the unconfined space is within a building of tight construction (buildings using the following construction: weather stripping, heavy insulation, caulking, vapor barrier, etc.), air for combustion, ventilation and draft hood dilution must be obtained from outdoors. The installation instructions for confined spaces in tightly constructed buildings must be followed to ensure adequate air supply.
9
CONFINEDSPACE
When drawing combustion and dilution air from inside a conventionally constructed building to a confined space, such a space shall be provided with two permanent openings, ONE IN OR WITHIN 12 INCHES (30.5cm) OF THE ENCLOSURE TOP AND ONE IN OR WITHIN 12 INCHES (30.5cm) OF THE ENCLOSURE BOTTOM. Each opening shall have a free area of at least one square inch per 1000 Btuh (2,225mm2/Kw) of the total input of all appliances in the enclosure, but not less than 100 square inches (645 square cm).
If the confined space is within a building of tight construction, air for combustion, ventilation, and draft hood dilution must be obtained from outdoors. When directly communicating with the outdoors or communicating with the outdoors through vertical ducts, two permanent openings, located in the above manner, shall be provided. Each opening shall have a free area of not less than one square inch per 4000 Btuh (8,900mm2/Kw) of the total input of all appliances in the enclosure. If horizontal ducts are used, each opening shall have a free area of not less than one square inch per 2000 Btuh (4,450mm2/Kw) of the total input of all appliances in the enclosure. For Canadian installations consult CAN/CSA B149.1-00.
VENT REDUCER
The BTR(C) 250, 251, and 275 models are shipped with an 8" to 6" diameter flue outlet adapter. The BTR(C) 120 models come with an 6" to 5" diameter flue outlet adapter. Each adapter fits on top of the installed flue damper. Use only vent reducers supplied with the unit. The venting must comply with the NATIONAL FUEL GAS CODE, ANSI Z223.1/NFPA 54 and for Canadian installations consult the Canadian Installation Code CAN/CSA B149.1-00.
FIGURE8
VENTING
WARNING
THE INSTRUCTIONS IN THIS SECTION ON VENTING MUST BE FOLLOWED TO AVOID CHOKED COMBUSTION OR RECIRCULATION OF FLUE GASES. SUCH CONDITIONS CAUSE SOOTING OR RISKS OF FIRE AND ASPHYXIATION.
Heater must be protected from freezing downdrafts.
Remove all soot or other obstructions from the chimney that will retard a free draft.
Type B venting is recommended with these heaters. See table 3 TECHNICAL DATA VENTING.
This water heater must be vented in compliance with all local codes, the current revision of the National Fuel Gas Code (ANSIZ223.1) and with the Category I Venting Tables.
In Canada, venting shall conform to the requirements of the current CAN/CGA B149.1-00 installation code.
If any parts of the vent system are exposed to ambient temperatures below 35 degrees F (2 degrees C) they must be insulated to prevent condensation.
•Do not connect the heater to a common vent or chimney with solid fuel burning equipment. This practice is prohibited by many local building codes as is the practice of venting gas fired equipment to the duct work of ventilation systems.
•Where a separate vent connection is not available and the vent pipe from the heater must be connected to a common vent with an oil burning furnace, the vent pipe should enter the smaller common vent or chimney at a point above the large vent pipe.
CORRECT METHOD |
INCORRECT INSTALLATION |
OF VENT PIPE |
WITH NO UPWARD |
INSTALLATION |
ANGLE |
PROVIDE MAXIMUM VERTICAL RISE OF VENT PIPE DIRECTLY ABOVE HEATER DRAFT HOOD BEFORE TURNING INTO HORIZONTAL RUN.
FIGURE 9
MULTIPLE HEATER MANIFOLD
Figure 10 and table 3 should be used for horizontally manifolding two or more heaters. Also see MULTIPLE-UNIT INSTALLATIONS of MECHANICAL VENTING section for induced draft applications.
FIGURE10
WATER LINE CONNECTIONS
This manual provides detailed installation diagrams (see pages 16-22 of this manual) for typical methods of application for the water heaters.
The water heater may be installed by itself, or with a separate storage tank, on both single and two-temperature systems. When used with a separate storage tank, the circulation may be either by gravity or by means of a circulating pump. When a circulating pump is used it is important to note that the flow rate should be slow so that there will be a minimum of turbulence inside the heater.
10
TECHNICAL DATA VENTING, TABLE 3
TYPE B GAS VENT
Multiple Gas Fired Tank-Type Heaters
When venting mutiple tank type heaters using Type B vent pipe, follow the installation diagram (figure 8) and tables below which give sizing and data based upon NFPA 54/ANSI Z223. 1992.
MODEL BTR(C)-120
Input: 120,00Btuh |
|
|
|
Total Vent Height (Feet) |
|
|
|
|
|
|
|
||||
Draft Hood: 5” |
|
|
|
6 |
8 |
10 |
15 |
|
20 |
|
30 |
50 |
|
100 |
|
|
Input Btuh |
|
Rise |
|
Vent Connector Diameter (inches) |
|
|
||||||||
|
120,000 |
|
1 Ft. |
7 |
7 |
7 |
6 |
|
6 |
|
6 |
6 |
|
6 |
|
|
120,000 |
|
2 Ft. |
6 |
6 |
6 |
6 |
|
6 |
|
6 |
6 |
|
5 |
|
|
123,000 |
|
3 Ft. |
6 |
6 |
6 |
6 |
|
6 |
|
5 |
5 |
|
5 |
|
Number |
Combined Input |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
of Heaters |
in Thousands of Btuh |
|
Manifold and Common Vent Diameter (In inches) |
|
|
||||||||||
2 |
240 |
|
|
10 |
8 |
8 |
7 |
|
7 |
|
7 |
6 |
|
7 |
|
3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
360 |
|
|
10 |
10 |
10 |
10 |
|
8 |
|
8 |
7 |
|
7 |
|
|
4 |
480 |
|
|
12 |
12 |
12 |
10 |
|
10 |
|
10 |
8 |
|
8 |
|
MODEL BTR(C)-154 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Input: 154,000 Btuh |
|
|
|
|
Total Vent Height (Feet) |
|
|
|
|
|
|||||
Draft Hood: 6” |
|
6 |
8 |
10 |
15 |
20 |
|
30 |
|
50 |
100 |
|
|
|
|
|
Input Btuh |
|
Rise |
|
Vent Connector Diameter (in inches) |
|
|
||||||||
|
154,000 |
|
1 Ft. |
8 |
8 |
7 |
7 |
|
7 |
|
7 |
7 |
|
7 |
|
|
154,000 |
|
2 Ft. |
7 |
7 |
7 |
7 |
|
7 |
|
6 |
6 |
|
6 |
|
|
154,000 |
|
3 Ft. |
7 |
7 |
7 |
6 |
|
6 |
|
6 |
6 |
|
6 |
|
Numbers |
Combined Input |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
of Heaters |
in Thousands of Btuh |
|
Manifold and Common Vent Diameter (in inches) |
|
|
||||||||||
2 |
308 |
|
|
10 |
10 |
10 |
8 |
|
8 |
|
7 |
7 |
|
7 |
|
3 |
462 |
|
|
12 |
12 |
12 |
10 |
|
10 |
|
10 |
8 |
|
8 |
|
4 |
618 |
|
|
14 |
14 |
12 |
12 |
|
12 |
|
10 |
10 |
|
10 |
|
|
|
|
|
|
|
|
|
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MODEL BTR(C)-180, 197, 198, 199, 200 |
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Input: 180,000, 190,000, 199,000 Btuh |
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Total Vent Height (Feet) |
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Draft Hood: 6” |
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6 |
8 |
10 |
15 |
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20 |
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30 |
50 |
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100 |
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Input Btuh |
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Rise |
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Vent Connector |
Diameter (in inches) |
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180,000 |
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1 Ft. |
8 |
8 |
8 |
8 |
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8 |
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7 |
7 |
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7 |
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190,000 |
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- |
8 |
8 |
8 |
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8 |
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8 |
7 |
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7 |
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199,000 |
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- |
- |
8 |
8 |
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8 |
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8 |
8 |
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7 |
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180,000 |
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2 Ft. |
8 |
8 |
7 |
7 |
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7 |
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7 |
7 |
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7 |
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190,000 |
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8 |
8 |
8 |
7 |
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7 |
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7 |
7 |
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7 |
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199,000 |
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8 |
8 |
8 |
8 |
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7 |
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7 |
7 |
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7 |
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179,000 |
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3 Ft. |
7 |
7 |
7 |
7 |
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7 |
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7 |
6 |
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6 |
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190,000 |
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8 |
7 |
7 |
7 |
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7 |
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7 |
6 |
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6 |
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197,000 |
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8 |
7 |
7 |
7 |
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7 |
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7 |
7 |
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6 |
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199,000 |
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8 |
8 |
7 |
7 |
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7 |
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7 |
7 |
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6 |
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Number of |
Combined Input |
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Heaters |
in Thousands of Btuh |
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Manifold & Common Vent Diameter |
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2 |
358 |
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10 |
10 |
10 |
10 |
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8 |
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8 |
7 |
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7 |
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380 |
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12 |
10 |
10 |
10 |
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10 |
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8 |
7 |
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7 |
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394/398 |
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12 |
10 |
10 |
10 |
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10 |
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8 |
8 |
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7 |
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3 |
537 |
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14 |
12 |
12 |
12 |
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10 |
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10 |
10 |
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8 |
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570 |
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14 |
12 |
12 |
12 |
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10 |
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10 |
10 |
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10 |
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591/597 |
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14 |
14 |
12 |
12 |
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12 |
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10 |
10 |
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10 |
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4 |
716 |
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14 |
14 |
14 |
12 |
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12 |
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12 |
10 |
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10 |
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760 |
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16 |
14 |
14 |
14 |
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12 |
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12 |
10 |
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10 |
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788/796 |
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16 |
14 |
14 |
14 |
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12 |
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12 |
12 |
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10 |
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11
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