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cooling. Units which will have economizers may use thermostats
with two or three stages of cooling. All units can use single stage
or multi-stage thermostats. Refer to figures later in this section
for wiring.
The units are designed for operation on 60 hertz current and at
voltages as shown on the rating plate. All internal wiring in the
unit is complete. It is necessary to bring in the power supply to
the contactor as shown on the unit wiring diagram which is
supplied with each unit. The low voltage wiring must be connected
between the unit control panel and the room thermostat.
R
C
W1W2
GY1Y2
R
Y2
CY1
W1
G
W2
Furnace Integrated
Control Module
Thermostat
Two-Stage Heating
with
Two-Stage Cooling
(
(
Two-Stage Heating with Two-Stage Cooling
Thermostat Diagram
SINGLE STAGE THERMOSTAT
To use a single stage thermostat, move jumper located to the
left of the terminal strip labeled “Stage Delay” from NONE to
“5” or “10” minutes. This selection will cause the control to
run on low stage for the selected time (5 or 10 minutes) then
shift to HIGH STAGE. This option controls both cooling and
heating modes. If the jumper is not moved, only low-stage
cool and low-stage heat will operate.
5 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
10 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
Two-Stage Heating (timed) and Two-Stage Cooling (timed)
with Single Stage Thermostat Diagram
Refer to the unit wiring diagram for electrical connections.
When installed, the unit must be electrically grounded in
accordance with local codes or in the absence of local codes,
with the National Electrical Code, ANSI/NFPA No. 70, and/or
the CSA C22.1 Electrical Code. Ensure low voltage
connections are waterproof.
Sizing Between First and Second Stage Regulator
Maximum Propane Capacities listed are based on 1 PSIG Pressure Drop at 10
PSIG Setting. Capacities in 1,000 BTU/HR
3/8" 1/2" 5/8" 3/4" 7/8" 1/2" 3/4"
30 309 700 1,303 2,205 3,394 1,843 3,854
40 265 599 1,115 1,887 2,904 1,577 3,298
50 235 531 988 1,672 2,574 1,398 2,923
60 213 481 896 1,515 2,332 1,267 2,649
70 196 446 824 1,394 2,146 1,165 2,437
80 182 412 767 1,297 1,996 1,084 2,267
90 171 386 719 1,217 1,873 1,017 2,127
100 161 365 679 1,149 1,769 961 2,009
150 130 293 546 923 1,421 772 1,613
200 111 251 467 790 1,216 660 1,381
250 90 222 414 700 1,078 585 1,224
300 89 201 378 634 976 530 1,109
350 82 185 345 584 898 488 1,020
400 76 172 321 543 836 454 949
To convert to Capacities at 15 PSIG Settings -- Multiply by 1.130
To convert to Capacities at 5 PSIG Settings -- Multiply by 0.879
PIPE OR
TUBING
LENGTH,
FEET
NOMINAL PIPE SIZE,
SCHEDULE 40
TUBING SIZE, O.D., TYPE L
Sizing Between Single or Second Stage Regulator and Appliance*
Maximum Propane Capacities Listed are Based on 1/2" W.C. Pressure Drop at
11" W.C. Setting. Capacities in 1,000 BTU/HR
3/8" 1/2" 5/8" 3/4" 7/8" 1/2" 3/4" 1" 1-1/4" 1-1/2"
10 49 110 206 348 539 291 608 1,146 2,353 3,525
20 34 76 141 239 368 200 418 788 1,617 2,423
30 27 61 114 192 296 161 336 632 1,299 1,946
40 23 52 97 164 253 137 284 541 1,111 1,665
50 20 46 86 146 224 122 255 480 985 1,476
60 19 42 78 132 203 110 231 436 892 1,337
80 16 36 67 113 174 94 198 372 764 1,144
100 14 32 59 100 154 84 175 330 677 1,014
125 12 28 52 89 137 74 155 292 600 899
150 11 26 48 80 124 67 141 265 544 815
200 10 22 41 69 106 58 120 227 465 697
250 9 19 36 61 94 51 107 201 412 618
300 8 18 33 55 85 46 97 182 374 560
350 7 16 30 51 78 43 89 167 344 515
400 7 15 28 47 73 40 83 156 320 479
*DATA IN ACCORDANCE WITH NFPA PAMPHLET NO. 54
NOMINAL PIPE SIZE,
SCHEDULE 40
TUBING SIZE, O.D., TYPE L
PIPE OR
TUBING
LENGTH,
FEET
Propane Gas Pipe Sizing
ELECTRICAL WIRING
THERMOSTAT LOCATION
Mount the thermostat approximately five feet above the floor,
in an area that has an inside, vibration-free wall and has
good air circulation.
Movement of air must not be obstructed by furniture, door,
draperies, etc. The thermostat must not be mounted where it
will be affected by drafts, hot or cold water pipes or air ducts in
walls, radiant heat from fireplace, lamps, the sun, television,
etc. Consult the Instruction Sheet packaged with thermostat
for mounting instructions.
NOTE: *PG1524, *PG1530, *PG1537, and *PG1549 units have
one stage of mechanical cooling and two stages of heat. All other
units have two stages of heating and two stages of mechanical