Reznor UEAS Unit Installation Manual - Manual (Page 11)

5. With the heater operating determine that the inlet pressure to the heater for
natural gas is between 5 and 13.5 inches w.c. and for propane between 10
and 13.5 inches w.c. Take this reading as close as possible to the heater
(Heaters are equipped with gas valves that have an inlet pressure tap.) If the
inlet pressure is not within the specified range, the inlet pressure must be
corrected and Steps 3 and 4 repeated.
6. Find the High Altitude Adjustment label, P/N 197062, in the plastic bag with
this installation manual. Using a permanent marker, fill-in the appropriate
information from the tables below. Select a location for the label on the outside
of the heater access panel so that it will be conspicuous to anyone operating
or servicing the unit. Be sure the surface is clean and dry and adhere the
label.
The input and/or the capacity of the heater changes with the derate. The tables
below list inputs and capacities at altitudes from sea level to 10,000 ft (3045M).
High Altitude Capacity Changes
BTUH Inputs and Capacities by Altitude in the UNITED STATES for Model UEAS
ALTITUDE
Normal
Input
Thermal Output
Capacity
Normal
Input
Thermal Output
Capacity
Normal
Input
Thermal Output
Capacity
Normal
Input
Thermal Output
Capacity
Feet Meters Size 130 Size 180 Size 260 Size 310
0-2000 0-610 131,000 121,830 175,000 159,250 260,000 239,200 305,000 277,550
2001-3000 611-915 123,140 114,520 164,500 149,695 244,400 224,848 286,700 260,897
3001-4000 916-1220 120,520 112,084 161,000 146,510 239,200 220,064 280,600 255,346
4001-5000 1221-1525 117,900 109,647 157,500 143,325 234,000 215,280 274,500 249,795
5001-6000 1526-1830 115,280 107,210 154,000 140,140 228,800 210,496 268,400 244,244
6001-7000 1831-2135 112,660 104,774 150,500 136,955 223,600 205,712 262,300 238,693
7001-8000 2136-2440 110,040 102,337 147,000 133,770 218,400 200,928 256,200 233,142
8001-9000 2441-2745 107,420 99,901 143,500 130,585 213,200 196,144 250,100 227,591
9001-10000 2746-3045 104,800 97,464 140,000 127,400 208,000 191,360 244,000 222,040
BTUH Inputs and Capacities by Altitude in CANADA for Model UEAS
ALTITUDE
Normal
Input
Thermal Output
Capacity
Normal
Input
Thermal Output
Capacity
Normal
Input
Thermal Output
Capacity
Normal
Input
Thermal Output
Capacity
Feet Meters Size 130 Size 180 Size 260 Size 310
0-2000 0-610 131,000 121,830 175,000 159,250 260,000 239,200 305,000 277,550
2001-4500 611-1373 117,900 109,647 157,500 143,325 234,000 215,280 274,500 249,795
7.1.4 Converting from
Natural Gas to Propane
Natural to Propane
Conversion Kits
Size 130 180 260 310
P/N 261647 261648 221444 221445
Components:
Regulator Spring Kit
*for Serial No. Valve Code
260605, M/H #396221 98720, M/H #393691
6E Y3 or Z8
Burner Orifice
P/N 120145 221265 196902 196903
Size 3.3mm #25 #14 #8
Conversion Tape 64391
Propane Gas Disk 37752
Regulated Propane Label 79718
Find the propane conversion parts in the plastic bag with this installation manual.
Verify the components with the list below and follow the instructions to install.
* The Serial No. is on the unit
rating plate. The valve code “Z8”
is identified in the sample serial
number below:
BLC 79 Z8 N 0000
1. Install the propane spring regulator kit in the gas valve. Follow the valve
manufacturer’s instructions that are included with the spring conversion kit.
2. Attach the propane disk near the gas valve.
3. Install the propane orifice. Refer to
FIGURE 28, page 37, and locate the gas
orifice. Carefully remove the natural gas orifice supplied on the heater. Install
the propane orifice.
Conversion Instructions
Form I-UEAS, P/N 221232 R13, Page 11