Johnson Controls TM9V*MP installation manual Seconds For, Revolution Cu Ft

701379-UIM-C-0712

Verify natural gas input rate by clocking meter.

1.Turn off all other gas appliances and pilots.

2.Run furnace for a minimum of 3 minutes in heating operation.

3.Measure time (in sec) for gas meter to complete 1 revolution and note reading. The 2 cubic feet dial provides a more accurate mea- surement of gas flow.

4.Refer to Table 15 for cubic feet of gas per hour.

5.Multiply cubic feet per hour by heating valve (BTU/cu ft) to obtain input.

Table 15: Gas Rate (CU FT/HR) at Full Input
Seconds For		Size of Test Dial
1 Revolution	1 Cu Ft		2 Cu Ft	5 Cu Ft
10	360		720	1800
11	327		655	1636
12	300		600	1500
13	277		555	1385
14	257		514	1286
15	240		480	1200
16	225		450	1125
17	212		424	1059
18	200		400	1000
19	189		379	947
20	180		360	900
21	171		343	857
22	164		327	818
23	157		313	783
24	150		300	750
25	144		288	720
26	138		277	692
27	133		267	667
28	129		257	643
29	124		248	621
30	120		240	600
31	116		232	581
32	113		225	563
33	109		218	545
34	106		212	529
35	103		206	514
36	100		200	500
37	97		195	486
38	95		189	474
39	92		185	462
40	90		180	450
41	88		176	439
42	86		172	429
43	84		167	419
44	82		164	409
45	80		160	400
46	78		157	391
47	76		153	383
48	75		150	375
49	73		147	367
50	72		144	360
51	71		141	355
52	69		138	346
53	68		136	340
54	67		133	333

If clocked rate does not match the input rate from the unit nameplate. follow steps in next section to adjust the manifold pressure. Repeat steps 2 - 5 until correct input is achieved.

Be sure to relight any gas appliances that were turned off at the start of this input check.

Seconds For		Size of Test Dial
1 Revolution	1 Cu Ft		2 Cu Ft	5 Cu Ft
55	65		131	327
56	64		129	321
57	63		126	316
58	62		124	310
59	61		122	305
60	60		120	300
62	58		116	290
64	56		112	281
66	54		109	273
68	53		106	265
70	51		103	257
72	50		100	250
74	48		97	243
76	47		95	237
78	46		92	231
80	45		90	225
82	44		88	220
84	43		86	214
86	42		84	209
88	41		82	205
90	40		80	200
92	39		78	196
94	38		76	192
96	38		75	188
98	37		74	184
100	36		72	180
102	35		71	178
104	35		69	173
106	34		68	170
108	33		67	167
110	33		65	164
112	32		64	161
116	31		62	155
120	30		60	150
124	29		58	145
128	28		56	141
133	27		54	135
138	26		52	130
144	25		50	125
150	24		48	120
157	23		46	115
164	22		44	110
171	21		42	105
180	20		40	100

Johnson Controls Unitary Products 31