Low Voltage Wiring; Start-Up And Adjustments; General - Nordyne RA 80+ series Installation Instructions Manual

Low Voltage Wiring

Install the thermostat per the manufacturer's
instructions. The low voltage (24 volt)
connections from the thermostat are made at
the terminal strip on the integrated control in the
furnace. See Figure 11
connections for heating only (two-wire) and
heating/cooling (four-wire) applications. The
recommended minimum wire gauge for
thermostat wiring is shown in Table 9.
The thermostat must not be installed on an
outside wall or any other location where its
operation may be adversely affected. Adverse
affects include radiant loading from fireplaces,
sunlight, or lighting fixtures, and convective loading
from warm air registers or electrical appliances.
To determine the heat anticipator setting either:
1. Add the current draw of the system
components; or
2. Measure the current flow on the thermostat
R-W circuit after the circulating blower
motor has started.
Set the heat anticipator according to the
thermostat manufacturer's instructions for heat
anticipator settings.
CUBIC FEET PER REVOLUTION OF
TIME FOR
ONE REVOLUTION
(SECONDS) 1
10 360
12 300
14 257
16 225
18 200
20 180
22 164
24 150
26 138
28 129
30 120
32 113
34 106
36 100
38 95
40 90
42 86
44 82
46 78
48 75
50 72
52 69
54 67
56 64
58 62
60 60
62 58
64 56
18

START-UP AND ADJUSTMENTS

General

Prior to start-up, verify that:
1. The line voltage power leads are securely
for the proper
2. The thermostat wires (R, W, Y, and G) are
3. The gas line service pressure does not
4. The roll-out manual reset switch is closed.
GAS FLOW RATE (CUBIC FEET PER HOUR)
METER
ONE REVOLUTION
5 10
1800 3600
1500 3000
1286 2571
1125 2250
1000 2000
900 1800
818 1636
750 1500
692 1385
643 1286
600 1200
563 1125
529 1059
500 1000
474 947
450 900
429 857
409 818
391 783
375 750
360 720
346 692
333 667
321 643
310 621
300 600
290 581
281 563
Table 10. Gas Flow Rate
connected, that the polarity of the
connections is correct, and that the furnace
is properly grounded.
securely connected to the correct leads on
the terminal strip of the circuit board.
exceed 10.0 in. water column (0.36 psig),
and is not less than 4.5 in. water column
(0.16 psig) for natural gas. For LP gas the
line service pressure must not exceed 14
in. water column (0.51 psig), and must not
be less than 11.0 in. w.c. (0.40 psig).
If necessary, press the red button to reset
a switch. DO NOT install a jumper wire
across a switch to defeat its function. If
a switch reopens on start-up, DO NOT
reset the switch without identifying and
correcting the fault condition which caused
the switch to trip.
TIME FOR
CUBIC FEET PER REVOLUTION OF
(SECONDS) 1
66 55
68 53
70 51
72 50
74 49
76 47
78 46
80 45
82 44
84 43
86 42
88 41
90 40
92 39
94 38
96 38
98 37
100 36
102 35
104 35
106 34
108 33
110 33
112 32
114 32
116 31
118 31
120 30
METER
5 10
273 545
265 529
257 514
250 500
243 486
237 474
231 462
225 450
220 439
214 429
209 419
205 409
200 400
196 391
191 383
188 375
184 367
180 360
176 353
173 346
170 340
167 333
164 327
161 321
158 316
155 310
153 305
150 300