12
TABLE 2 — PHYSICAL DATA 48HE (cont)
BASE UNIT 48HE
HD/E/F003
HE/F/H/K/M/N004
HD/E/F/G/H/K/L/M/N005
HD/E/F/G/H/K/L/M/N006
FURNACE SECTION
Rollout Switch Cutout Temp (F)†
195
195
195
195
Burner Orifice Diameter (in. ...drill size)**
Natural Gas — Std*
HJE
.113...33
HJD
.113...33
HJD
.113...33
HEE
.089...43
HJF
.113...33
HJE
.113...33
HJE
.113...33
—
HJF
.129...30
HJF
.129...30
—
HJH
.113...33
HJG
.113...33
HJG
.113...33
—
HJK
.113...33
HJH
.113...33
HJH
.113...33
—
—
HJK
.129...30
HJK
.129...30
HEM .089...43
HJM
.102...38
HJL
.102...38
HJL
.102...38
—
HJN
.102...38
HJM
.102...38
HJM
.102...38
—
—
HJN
.116...32
HJN
.116...32
Liquid Propane — Alt††
HEE
.073...49
HJE
.089...43
HJD
.089...43
HJD
.089...43
HJF
.089...43
HJE
.089...43
HJE
.089...43
—
HJF
.104...37
HJF
.104...37
—
HJH
.089...43
HJG
.089...43
HJG
.089...43
—
HJK
.089...43
HJH
.089...43
HJH
.089...43
—
—
HJK
.102...37
HJK
.104...37
—
—
—
—
Thermostat Heat Anticipator Setting (amps)
208/230/460/575 v
First Stage
.14
.14
.14
.14
Second Stage
.14
.14
.14
.14
Gas Input (Btuh)
First Stage/Second Stage
HEE
50,000/---
HEE
||
50,000/ 72,000
HED
|| 50,000/ 72,000
HED
|| 50,000/ 72,000
HEF
||
82,000/115,000
HEE
|| 82,000/115,000
HEE
|| 82,000/115,000
—
HEF
|| 120,000/150,000
HEF
|| 120,000/150,000
—
HEH
*** —/ 72,000
HEG
*** —/ 72,000
HEG
*** —/ 72,000
—
HJK
***—/115,000
HEH
*** —/115,000
HEH
*** —/115,000
—
—
HEK
*** —/150,000
HEK
*** —/150,000
—
HEM
††† —/ 60,000
HEL
††† —/ 60,000
HEL
††† —/ 60,000
—
HEN
††† —/ 90,000
HEM
††† —/ 90,000
HEM
†††—/ 90,000
—
—
HEN
††† —/120,000
HEN
††† —/120,000
Efficiency (Steady State) (%)
HEE
81
HEE
82.8
HED
82.8
HED
82.8
HEF
80
HEE
81
HEE
81
—
HEF
80.4
HEF
80.4
—
HEH
82
HEG
82
HEG
82
—
HEK
80
HEH
81
HEH
81
—
—
HEK
80
HEK
80
—
HEM
80.2
HEL
80.2
HEL
80.2
HEM 81
HEN
81
HEM
81
HEM
81
—
—
HEN
80.7
HEN
80.7
Temperature Rise Range
HEE
25-55
HED
25-25
HED
25-55
HEE
25-65
HEF
55-85
HEE
35-65
HEE
35-65
—
HEF
50-80
HEF
50-80
—
HEH
25-55
HEG
25-55
HEG
25-55
—
HEK
55-85
HEH
35-65
HEH
35-65
—
—
HEK
50-80
HEK
50-80
—
HEM
20-50
HEL
20-50
HEL
20-50
—
HEN
30-60
HEM
30-60
HEM
30-60
—
—
HEN
40-70
HEN
40-70
Manifold Pressure (in. wg)
Natural Gas — Std
3.5
3.5
3.5
3.5
Liquid Propane — Alt††
3.5
3.5
3.5
3.5
Maximum Static Pressure (in. wg)
1.0
1.0
1.0
1.0
Field Gas Connection Size (in.)
1
/
2
1
/
2
1
/
2
1
/
2
HIGH-PRESSURE SWITCH
(psig)
Standard Compressor Internal Relief
450
±
50
Cutout
428
Reset (Auto.)
320
LOSS-OF-CHARGE SWITCH
(Liquid LIne) (psig)
Cutout
7
±
3
Reset (Auto.)
22
±
5
FREEZE PROTECTION THERMOSTAT
Opens (F)
30
±
5
Closes (F)
45
±
5
OUTDOOR-AIR INLET SCREENS
Cleanable. Screen quantity and size varies with option selected.
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
2...16 x 25 x 2
LEGEND
Bhp —
Brake Horsepower
*Stainless steel models use same orifices as equivalent standard unit.
†Indicates automatic reset.
**
≤
72,000 Btuh heat input units have 2 burners. 90,000 and
120,000 Btuh heat
input units have 3 burners. 115,000 Btuh heat input units and 150,000 Btuh Heat
input units have 3 burners.
††An LP kit is available as an accessory. An LP conversion kit should not be used on a
low NOx unit because then it can no longer be classified as a Low NOx unit. The
Low NOx requirement only applies to natural gas units.
Three-phase standard models have heating inputs as shown. Single-phase standard
models have one-stage heating with heating input values as shown in heatin capac-
ity tables.
***These units do NOT meet the California low NOx requirements.
†††California SCAQMD compliant low NO
x
models have combustion products that are
controlled to 40 nanograms per joule or less.
48H
E,
H
J