
Form 43343120
July 2021
-5-
5.0)
SPECIFICATIONS
Model No.
Btu/hr
High
Input
(2-stage)
Btu/hr
Low
Input
Air Plate
Part #
Orifice Size
Minimum *
Mounting Height
Turbulator
Qty.
Natural Gas
Propane Gas
@
Horizontal
PGR 40
40,000 25,000 44140061
#32
(0.116)
#49
(0.073)
10 ft.
4
PGR 50
50,000 30,000 4414006H 3.5mm (0.138)
#46
(0.081)
11 ft.
4
PGR 60
60,000 40,000 4414006H
#26
(.147)
#43
(.089)
11 ft.
4
PGR 75
75,000 50,000 44140063
#21
(0.159) 2.5mm (0.098)
13 ft.
4
PGR 80
80,000 55,000 44140065 4.3mm (0.169) 2.6mm (0.102)
13 ft.
4
PGR 100
100,000 65,000 44140062
#12
(0.189)
#32
(0.116)
14 ft.
3
PGR 125
125,000 80,000 44140066
#4
(0.209)
#30
(0.129)
14 ft.
4
* MOUNT HEATERS AS HIGH AS POSSIBLE. Minimums are shown for indoor applications 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
Gas Type
Description
N5
Natural
Single Stage Gas Valve
–
Single Stage Input
L5
Propane
Single Stage Gas Valve
–
Single Stage Input
N7
Natural
Two Stage Gas Valve
–
Modulating Input
–
High/Low Fire
L7
Propane
Two Stage Gas Valve
–
Modulating Input
–
High/Low Fire
Type
Gas
Gas Pipe
Connection
Tube
Diameter
Flue
Connection
1
Fresh Air
Connection
1
Electrical
Supply
Current
Rating
Natural
or Propane
½” MPT
(Male)
4”
4” Round
4
” Round
120 Volt, 60Hz,
1 Phase
1.74 Amp
1
See Section 14.0) for vent sizes when multiple heaters are connected into a common vent
Module Electrical Rating:
Ignition System (direct spark):
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
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).
Available vented and unvented models
Model PGR
Body length
125
100
80
75
60
50
40
20 ft
unvented
x*
x
x
x
x
x
x
vented
-
-
-
-
x
x
x
30 ft
unvented
x
x
x
x
x
x
-
vented
-
-
-
x
x
x
-
*Special Application
Содержание PGR 100-L5
Страница 47: ...Form 43343120 46 July 2021 18 0 CONTROL COMPONENT LOCATION ...
Страница 49: ...Form 43343120 48 July 2021 20 0 TROUBLESHOOTING GUIDE SINGLE STAGE N5 L5 ...
Страница 50: ...Form 43343120 July 2021 49 TROUBLESHOOTING GUIDE SINGLE STAGE CONTINUED ...
Страница 51: ...Form 43343120 50 July 2021 TROUBLESHOOTING GUIDE SINGLE STAGE CONTINUED ...
Страница 52: ...Form 43343120 July 2021 51 20 8 TROUBLESHOOTING GUIDE TWO STAGE N7 L7 ...
Страница 53: ...Form 43343120 52 July 2021 TROUBLESHOOTING GUIDE TWO STAGE CONTINUED ...
Страница 54: ...Form 43343120 July 2021 53 TROUBLESHOOTING GUIDE TWO STAGE CONTINUED ...
Страница 56: ...Form 43343120 July 2021 55 21 10 REMOVING GAS VALVE AND MANIFOLD ASSEMBLY 21 11 AIR SWITCH PRESSURE CHECK ...