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5.0)
SPECIFICATIONS
Btu/hr
High
Model No.
Input
PTS/PTU 40
40,000
PTS/PTU 50
50,000
PTS/PTU 60
60,000
PTS/PTU 75
75,000
PTS/PTU 100
100,000 65,000 44140062
PTS/PTU 125
125,000 80,000 44140066
PTS/PTU 150
150,000 100,000 44140067
PTS/PTU 175
175,000 110,000 44140067
PTS/PTU 200
200,000 125,000 44140068 6.9mm (0.272) 4.1mm (0.161)
* 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
Natural
or Propane
See Section 16.0) for vent sizes when multiple heaters are connected into a common vent
1
Module Electrical Rating:
Input-Control: 18-30 VAC 50/60 Hz (class 2 transformer)
Input Power-Line: 120 VAC (L1, IND contacts only)
Flame Sensitivity: 0.7 uA (microamps) minimum
6.0)
PACKING LIST
A. PTS/PTU Burner Package
Part Description
Burner Box Assembly (Refer to the following chart for Package Part Numbers) .......................... 1
4"ID x 4"Lg Flue Adapter Collar (#30504500) .................................................................................. 1
Fastener Kit – Burner Box Attachment/Flue Adapter Collar (#42907040) .................................. 1
Containing: #10 x 1/2" Self-Drilling Screws (#02189020) .................................................... 2
Turbulator 24" Long (#44152240) *See chart above for required quantities. .............................. *
Installation & Operation Instructions .................................................................................................... 1
Turnbuckle (#30545040) ......................................................................................................................... 1
Gas connector 5/8" OD x 36" (#30302360) – US only ....................................................................... 1
Screen Assembly – 2-5/8" ID x 5-1/2" Long (#44151010) 200M BTU models only ................... 1
End Reflector Package (#43341000) .................................................................................................. 1
Form 43343330
May 2021
(2-stage)
Btu/hr
Low
Air Plate
Input
Part #
25,000 44140061
30,000 4414006H 3.5mm (0.138)
37,000 4414006H
50,000 44140063
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
Connection
Diameter
½" MPT
(Male)
4"
¼ - 20 Locknuts (#02167010) .............................................................................. 3
Tube Flange Gasket (#42921000) ........................................................................... 1
Orifice Size
Natural Gas
Propane Gas
#32
(0.116)
#49
#46
#26
(0.147)
#43
#21
(0.159) 2.5mm (0.098)
#12
(0.189)
#32
#4
(0.209)
#30
"A"
(0.234)
#27
"E"
(0.250)
#23
Flue
Fresh Air
Connection
Connection
1
4" Round
4" Round
Ignition System (direct spark):
15 second trial for ignition period
15 second pre-purge period
60 second inter-purge period
30 second post-purge period
3 tries for ignition (separate flame sensor).
-5-
Minimum *
Mounting Height
@
Horizontal
45º Angle
(0.073)
10 ft.
(0.081)
11 ft.
10 ft.
(0.089)
11 ft.
10 ft.
13 ft.
12 ft.
(0.116)
14 ft.
13 ft.
(0.129)
14 ft.
13 ft.
(0.144)
15 ft.
14 ft.
(0.154)
16 ft.
15 ft.
18 ft.
16 ft.
Electrical
Supply
1
120 Volt, 60Hz,
1 Phase
@
Turbulator
Qty.
9 ft.
4
5
4
5
3
7
4
0
1
Current
Rating
1.74 Amp
QTY
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