49
UEZ-IOM (07-23) 1034347-I
Table 24. Inputs and Capacities by Elevation
Elevation
(Feet (Meters))
Unit Size
055 085 110 130 180 260 310
NI* TOC* NI* TOC* NI* TOC* NI* TOC* NI* TOC* NI* TOC* NI* TOC*
BTUh
US
0–2000
(0–610)
55,000 51,150 85,000 79,050 110,000 102,300 131,000 121,830 175,000 159,250 260,000 239,200 305,000 277,550
2001–3000
(611–915)
52,800 49,104 81,600 75,888 105,600 98,208 123,140 114,520 164,500 149,695 244,400 224,848 286,700 260,897
3001–4000
(916–1220)
50,688 47,140 78,336 72,852 101,376 94,280 120,520 112,084 161,000 146,510 239,200 220,064 280,600 255,346
4001–5000
(1221–1525)
48,660 45,254 75,203 69,938 97,321 90,508 117,900 109,647 157,500 143,325 234,000 215,280 274,500 249,795
5001–6000
(1526–1830)
46,714 43,444 72,194 67,141 93,428 86,888 115,280 107,210 154,000 140,140 228,800 210,496 268,400 244,244
6001–7000
(1831–2135)
44,845 41,706 69,307 64,455 89,691 83,413 112,660 104,774 150,500 136,955 223,600 205,712 262,300 238,693
7001–8000
(2136–2440)
43,052 40,038 66,534 61,877 86,103 80,076 110,040 102,337 147,000 133,770 218,400 200,928 256,200 233,142
8001–9000
(2441–2745)
41,330 38,437 63,873 59,402 82,659 76,873 107,420 99,901 143,500 130,585 213,200 196,144 250,100 227,591
9001–10,000
(2746–3045)
39,676 36,899 61,318 57,026 79,353 73,798 104,800 97,464 140,000 127,400 208,000 191,360 244,000 222,040
Canada
0–2000
(0–610)
55,000 51,150 85,000 79,050 110,000 102,300 131,000 121,830 175,000 159,250 260,000 239,200 305,000 277,550
2001–4500
(611–1373)
48,660 45,254 75,203 69,938 97,321 90,508 117,900 109,647 157,500 143,325 234,000 215,280 274,500 249,795
*NI = normal input. TOC = thermal output capacity.
Converting Unit from Natural Gas to Propane
The heater is shipped factory-equipped for use with natural gas. A propane conversion kit is provided with each
heater. Ensure that components in the kit are available (refer to Table 25) and install the kit as follows:
1. Install propane regulator spring kit in combination gas valve in accordance with valve manufacturer’s instructions
included with kit.
2. Attach propane disk near combination gas valve.
3. Carefully remove natural gas orifice(s) (see Figure 27) from heater and install propane orifice(s).
4. Install labels:
a. Use permanent marker to fill in appropriate information on conversion label from kit.
b. Select location for label near rating plate.
c. Ensure that surface is clean and dry and affix conversion label and regulated propane label from kit.
5. During heater startup, check valve outlet pressure in accordance with Measure and Adjust Manifold (Outlet)
Gas Pressure section.
Table 25. Propane Conversion Kit Components
Component Description
Unit Size
055 085 110 130 180 260 310
PN
Conversion kit Package PN 1041262 261647 1036196R 1036197R 221445
Regulator spring
kit
Honeywell #396221 260605 260605 —
Honeywell #393691 — — 98720
Burner orifice
PN 661057 661079 661082 120145 196899 1034352 196903
Drill size #57 1.2 mm 1.25 mm 3.3 mm #24 4.6 mm #8
Quantity 4 5 6 1
Label
Conversion 64391 64391
Regulated propane 79718 79718
Gas disk Propane 37752 37752
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