Johnson Controls G775 User Manual

2 G
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G77x Intermittent Pilot Ignition Controls Technical Bulletin
Table 1: Specifications
Ignition Type
Indirect
Ignition Source
High voltage spark, capacitive discharge
High Voltage Cable
Maximum Length
1,220 mm (48 in.)
Flame Sense Cable
Maximum Length
1,220 mm (48 in.)
Flame Detection Means
Flame rectification
Flame Detection Types
Integral and remote
Minimum Flame Current
0.15 microampere
Flame Failure Response
Time
0.8 second maximum
1.5 seconds maximum (G776_G models only)
Spark Gap
2.5 mm (0.1 in.) nominal
Ignition Trials
1 or 3
Ignition Trial Times
8, 25, 50, 85, or 120 seconds*
Prepurge Times
0, 4, 15, or 30 seconds*
Interpurge
0, 15, or 30 seconds*
Automatic Recycle Delay
Period
No recycle (G770, G777)
5 minutes* (G775, G779)
60 minutes* (G776, G778)
Power Requirements
Control: 24 VAC, 60 Hz, nominal
Operation Current: 0.2A nominal + valves
Contact Rating
Main Valve: 2A continuous, 5A inrush
Pilot Valve: 2A continuous, 5A inrush
Ambient Operating and
Storage Temperature
-40 to 70°C (-40 to 160°F) standard models
-40 to 80°C (-40 to 175°F) high temperature models
Humidity
95% RH non-condensing
Wiring Connections
Spark: Spike, Rajah, or 6.35 mm (1/4 in.) male spade
Control: 6.35 mm (1/4 in.) male spade
4.76 mm (3/16 in.) male spade optional
Types of Gas
Natural, Liquefied Petroleum (LP), manufactured, mixed, or
LP gas-air mixture
Packaging
Bulk pack supplied to original equipment manufacturer
(individual pack optional).
Bulk Pack Quantity
50
Bulk Pack Weight
15 kg (33 lb)
Agency Listing
CSA (AGA/CGA) Certificate Number 164933-1073441
Australian Gas Certificate Number 4524 (G770 models only)
Specification Standards
ANSI Standard Z21.20, Z21.20a, Z21.20b
CAN/CSA-C22.2 No.199
*Timings listed are for 60 Hz operation. Timings increase 20% for 50 Hz operation.
The performance specifications are nominal and conform to acceptable industry
standards. For application at conditions beyond these specifications, consult the local
Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting
from misapplication or misuse of its products.
Refer to the G77x Series Product Bulletin (LIT-4350430) for necessary information on operating
and performance specifications of this product.
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Johnson Controls G775 Specifications

General

Brand	Johnson Controls
Model	G775
Category	Controller
Language	English