Table of Contents
Advertisement
9.0)
LTS SERIES SPECIFICATIONS
(2-Stage)
Btu/hr
Btu/hr
Model
High
Low
No.
Input
Input
LTS 40
40,000
25.000
LTS 50
50,000
31,500
LTS 60
60,000
38,000
LTS 75
75,000
50,000
LTS 80
80,000
50,500
LTS 90
90,000
57,000
LTS 100
100,000
63,000
LTS 110
110,000
69,500
LTS 120
120,000
76,000
LTS 125
125,000
80,000
LTS 130
130,000
82,000
LTS 140
140,000
88,500
LTS 150
150,000
95,000
LTS 160
160,000 100,000
LTS 175
175,000 110,000
LTS 180
180,000 114,000
LTS 200
200,000 125,000
LTS 225
225,000 146,000
LTS 250
250,000 162,000
* MOUNT HEATERS AS HIGH AS POSSIBLE. Minimums are shown as a guideline for human comfort and uniform
energy distribution for complete building heating applications. Consult your Space-Ray representative for the
particulars of your installation requirements.
Model Identification:
Control Option
Suffix
N5
L5
N7
L7
Type
Gas
Connection
Natural
or Propane
LTS 225 and 250 require a minimum 3/4" nominal ID flexible gas connector.
1
LTS 180-250: 6" round. See Section 17.0) for vent sizes and limitations.
2
Spark Module: 2 Amp 250V
Form #43155010
Dec 2017
Flue Restrictor
Plate
I.D. & Part #
1"
42741040
1-1/8"
42741030
1-7/32" 42741020
1-7/16" 42741010
1-1/2"
42741050
1-1/2"
42741050
1-5/8"
42741060
1-3/4"
42741070
1-3/4"
42741070
1-7/8"
42741080
1-7/8"
42741080
2-1/32" 42741090
2-1/32" 42741090
2-1/4"
42741100
2-1/4"
42741100
2-1/4"
42741100
2-3/8"
42741130
2-1/2"
42741140
2-3/4"
42741150
Gas Type
Description
Natural
Single Stage Gas Valve – Single Stage Input
Propane
Single Stage Gas Valve – Single Stage Input
Natural
Two Stage Gas Valve – Modulating Input – High/Low Fire
Propane
Two Stage Gas Valve – Modulating Input – High/Low Fire
Gas Pipe
Tube
Diameter
1
½" MPT
(Male)
4"
Fuse Rating:
(for 24V Circuit)
Orifice Size
Natural Gas
Propane Gas
#31
(0.120)
#49
3.3mm
(0.130)
#46
#27
(0.144)
#43
#20
(0.161)
#39
#19
(0.166)
#38
#16
(0.177)
#36
#14
(0.182)
#33
#10
(0.194)
#31
13/64
(0.203)
1/8
#5
(0.206)
#30
#4
(0.209)
3.3mm
5.5mm
(0.216)
#29
5.7mm
(0.224)
#28
5.8mm
(0.228)
#27
"C"
(0.242)
3.8mm
"C"
(0.242)
#24
"F"
(0.257)
#21
6.9mm
(0.272)
#18
"K"
(0.281)
4.5mm
Flue
Fresh Air
Connection
Connection
2
4" Round
6" Round
Ignition System (direct spark):
Input Power-Control: 18-30VAC 60 Hz (class 2
transformer)
30 second pre-purge period
21 second trial for ignition period
Flame Sensitivity: 0.7 uA (microamps) minimum
-17-
Minimum *
Mounting Height
@
Horizontal
(0.073)
10 ft.
(0.081)
11 ft.
(0.089)
12 ft.
(0.099)
13 ft.
(0.102)
13 ft.
(0.106)
13 ft.
(0.113)
13 ft.
(0.120)
14 ft.
(0.125)
14 ft.
(0.129)
14 ft.
(0.130)
14 ft.
(0.136)
15 ft.
(0.140)
15 ft.
(0.144)
15 ft.
(0.150)
15 ft.
(0.152)
18 ft.
(0.159)
18 ft.
(0.170)
20 ft.
(0.177)
20 ft.
Electrical
Current
Supply
Rating
120 Volt, 60Hz,
1 Phase
2.6 Amp
@
45º Angle
9 ft.
10 ft.
11 ft.
12 ft.
12 ft.
12 ft.
12 ft.
13 ft.
13 ft.
13 ft.
13 ft.
14 ft.
14 ft.
14 ft.
14 ft.
17 ft.
17 ft.
19 ft.
19 ft.
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
