Carrier N95ESN - Btuh Only; Service and Maintenance Procedures

N95ESN: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
54
Table 22 – Orifice Size and Manifold Pressure (in. w.c.) for Gas
Input Rate
26,000 BTUH ONLY
A150571
Table 22 (Continued) - Orifice Size and Manifold Pressure (in. w.c.)
for Gas Input Rate
26,000 BTUH ONLY
A150572
SERVICE AND MAINTENANCE PROCEDURES
Untrained personnel can perform basic maintenance functions such as
cleaning and replacing air filters. All other operations must be performed
by trained service personnel. A qualified service person should inspect
the furnace once a year.
General
These instructions are written as if the furnace is installed in an upflow
application. An upflow furnace application is where the blower is
located below the combustion and controls section of the furnace, and
conditioned air is discharged upward. Since this furnace can be installed
in any of the 4 positions shown in Fig. 2, you must revise your
orientation to component location accordingly.
Electrical Controls and Wiring
Each pressure switch is labeled with the reference location (noted as
“COLLECTOR BOX-LPS” or “HOUSING-HPS” on the switch). The
nominal break point of each switch is shown on the label below the
reference location in inches of water column, “W.C.” The maximum and
minimum break point of the switch is +/- 0.05 inches of water column
from the nominal break point of the switch. The maximum make point of
the switch is 0.10 inches of water above the maximum break point of the
switch.
AVG. GAS
HEAT VALUE
AT ALTITUDE
Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold
(Btu/cu ft)
No. Pressure No. Pressure No. Pressure No. Pressure
900 44 1.8
43 1.7 43 1.7 43 1.8
0 925 44 1.7 44 1.8
43 1.6 43 1.7
(0) 950 44 1.6 44 1.7 44 1.8 44 1.8
975 44 1.6 44 1.6 44 1.7 44 1.7
to 1000 44 1.5 44 1.5 44 1.6 44 1.6
1025 44 1.4 44 1.5 44 1.5 44 1.6
2000 1050 44 1.3 44 1.4 44 1.4 44 1.5
(610) 1075 44 1.3 44 1.3 44 1.4 44 1.4
1100 44 1.2 44 1.3 44 1.3 44 1.4
U.S.A. 800
43 1.7 43 1.8 43 1.8 42 1.6
2001 (611) 825
43 1.6 43 1.7 43 1.7 43 1.8
to 850 44 1.8 44 1.8
43 1.6 43 1.7
3000 (914) 875 44 1.7 44 1.7 44 1.8 44 1.8
900 44 1.6 44 1.6 44 1.7 44 1.7
Canada 925 44 1.5 44 1.5 44 1.6 44 1.6
2001 (611) 950 44 1.4 44 1.5 44 1.5 44 1.6
to 975 44 1.3 44 1.4 44 1.4 44 1.5
4500 (1372) 1000 44 1.3 44 1.3 44 1.4 44 1.4
775
43 1.7 43 1.8 43 1.8 42 1.5
800 44 1.8
43 1.7 43 1.7 43 1.8
3001 825 44 1.7 44 1.8 44 1.8
43 1.7
(915) 850 44 1.6 44 1.7 44 1.7 44 1.8
875 44 1.5 44 1.6 44 1.6 44 1.7
900 44 1.4 44 1.5 44 1.5 44 1.6
4000 925 44 1.4 44 1.4 44 1.5 44 1.5
(1219) 950 44 1.3 44 1.3 44 1.4 44 1.4
750
43 1.7 43 1.7 43 1.8 43 1.8
775 44 1.8
43 1.6 43 1.7 43 1.7
4001 800 44 1.7 44 1.7 44 1.8
43 1.6
(1220) 825 44 1.6 44 1.6 44 1.7 44 1.8
850 44 1.5 44 1.5 44 1.6 44 1.7
to 875 44 1.4 44 1.5 44 1.5 44 1.6
5000 900 44 1.3 44 1.4 44 1.4 44 1.5
(1524) 925 44 1.3 44 1.3 44 1.4 44 1.4
725
43 1.7 43 1.7 43 1.8 43 1.8
5001 750 44 1.8 44 1.8
43 1.7 43 1.7
(1525) 775 44 1.7 44 1.7 44 1.8 44 1.8
800 44 1.6 44 1.6 44 1.7 44 1.7
825 44 1.5 44 1.5 44 1.6 44 1.6
850 44 1.4 44 1.4 44 1.5 44 1.5
6000 875 44 1.3 44 1.3 44 1.4 44 1.4
(1829) 900 44 1.2 44 1.3 44 1.3 44 1.4
675
43 1.8 43 1.8 42 1.5 42 1.6
6001 700
43 1.6 43 1.7 43 1.7 43 1.8
(1830) 725 44 1.7 44 1.8
43 1.6 43 1.7
750 44 1.6 44 1.7 44 1.7 44 1.8
775 44 1.5 44 1.6 44 1.6 44 1.7
7000 800 44 1.4 44 1.5 44 1.5 44 1.6
(2133) 825 44 1.3 44 1.4 44 1.4 44 1.5
850 44 1.3 44 1.3 44 1.4 44 1.4
* Orifice numbers shown in BOLD are factory-installed.
U.S.A. OnlyU.S.A. Only
to
U.S.A. Only
to
ORIFICE SIZE* AND MANIFOLD PRESSURE (IN WC) FOR GAS INPUT RATE
(
TABULATED DATA BASED ON 13,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVE
L
ALTITUDE
RANGE
U.S.A. and CanadaU.S.A. and CanadaU.S.A. Only
ft (m)
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60 0.62 0.64
to
650
43 1.7 43 1.8 42 1.5 42 1.6
7001 675 44 1.8
43 1.7 43 1.7 43 1.8
(2134) 700 44 1.7 44 1.8 44 1.8
43 1.7
725 44 1.6 44 1.7 44 1.7 44 1.8
750 44 1.5 44 1.5 44 1.6 44 1.6
8000 775 44 1.4 44 1.4 44 1.5 44 1.5
(2438) 800 44 1.3 44 1.4 44 1.4 44 1.4
825 44 1.2 44 1.3 44 1.3 44 1.4
625
43 1.7 43 1.8 43 1.8 42 1.6
8001 650 44 1.8
43 1.7 43 1.7 43 1.8
(2439) 675 44 1.7 44 1.8 44 1.8
43 1.6
700 44 1.6 44 1.6 44 1.7 44 1.7
725 44 1.5 44 1.5 44 1.6 44 1.6
9000 750 44 1.4 44 1.4 44 1.5 44 1.5
(2743) 775 44 1.3 44 1.3 44 1.4 44 1.4
9001 600
43 1.7 43 1.8 43 1.8 42 1.6
(2744) 625 44 1.8
43 1.6 43 1.7 43 1.7
650 44 1.7 44 1.7 44 1.8 44 1.8
675 44 1.6 44 1.6 44 1.7 44 1.7
10000 700 44 1.4 44 1.5 44 1.5 44 1.6
(3048) 725 44 1.3 44 1.4 44 1.4 44 1.5
* Orifice numbers shown in BOLD are factory-installed.
U.S.A. Only
to
U.S.A. Only
to
U.S.A. Only
to
ORIFICE SIZE* AND MANIFOLD PRESSURE (IN WC) FOR GAS INPUT RATE
(
TABULATED DATA BASED ON 13,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVE
L
WARNING
!
FIRE, INJURY OR DEATH HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
The ability to properly perform maintenance on this equipment requires
certain knowledge, mechanical skills, tools, and equipment. If you do
not possess these, do not attempt to perform any service and
maintenance on this equipment other than those procedures
recommended in the Owner’s Manual.
CAUTION
!
ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental pollution.
Remove and recycle all components or materials (i.e. oil, refrigerant,
control board, etc.) before unit final disposal.
WARNING
!
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury or death,
or property damage.
Before installing, modifying, or servicing system, main electrical
disconnect switch must be in the OFF position and install a lockout tag.
There may be more than one disconnect switch. Lock out and tag
switch with a suitable warning label. Verify proper operation after
servicing. Always reinstall access doors after completing service and
maintenance.
CAUTION
!
ELECTRICAL OPERATION HAZARD
Failure to follow this caution may result in improper furnace operation
or failure of furnace.
Label all wires prior to disconnection when servicing controls. Wiring
errors can cause improper and dangerous operation.