Grandaire WFAR060B048C - Altitude Derate Multiplier

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Specifications subject to change without notice.
Table2–AltitudeDerateMultiplierforU.S.A.
ALTITUDE PERCENT
OF
DERATE
DERATE
MULTIPLIER
FACTOR*
FT. M
0–2000 0--610 0 1.00
2001–3000 610--914 4--6 0.95
3001–4000 914--1219 6--8 0.93
4001–5000 1219--1524 8--10 0.91
5001–6000 1524--1829 10--12 0.89
6001–7000 1829--2134 12--14 0.87
7001–8000 2134--2438 14--16 0.85
8001–9000 2438--2743 16--18 0.83
9001–10,000 2743--3048 18--20 0.81
*Derate multiplier factors are based on midpoint altitude for altitude range.
ON/OFF Switch
Regulator Seal Cap
Regulator Adjustment
Regulator Seal Cap under Cap
1/2” NPT Outlet
1/8” NPT Manifold
Pressure Tap
1/8” NPT Inlet
Pressure Tap
1/2” NPT Inlet
SINGLE-STAGE
A11153
Fig. 3 -- Gas Valve
R Y W G
10 TURNS
THERMOSTAT SUBBASE
TERMINALS WITH
THERMOSTAT REMOVED
(ANITICIPATOR, CLOCK, ETC.,
MUST BE OUT OF CIRCUIT.)
HOOK-AROUND
AMMETER
EXAMPLE:
5.0 AMPS ON AMMETER
10 TURNS AROUND JAWS
=
0.5 AMPS FOR THERMOSTAT
ANTICIPATOR SETTING
FROM UNIT 24-V
CONTROL TERMINALS
A96316
Fig. 4 -- Amp. Draw Check with Ammeter