ACC-99D Decoder

The Two-Wire Decoder Version of Hunter’s Most Powerful Commercial Controller

The versatility of the ACC controller grows even more powerful with the addition of the two-wire decoder system from Hunter. ACC-99D uses two-wire decoders to control up to 99 stations without giving up the arsenal of features provided by the ACC. Operating large numbers of valves over long distances, the ACC99D decoder controller takes full advantage of the powerful ACC feature set. Since it’s two-wire powered, it also saves copper wire, simplifies troubleshooting, permits rapid addition of new stations, minimizes trenching, and permits remote sensor monitoring over the two-wire path.

Product Tabs

Features

Decoder station sizes available: 1, 2, 4, 6
Max. distance to decoder,14 AWG wire path: 10,000 ft.
Sensor decoder available with Flow and Clik inputs
Max. distance to decoder, 12 AWG wire path: 15,000 ft.
Max. recommended distance, decoder to solenoid: 150 ft.
Field programmable decoders
ICD-HP wireless handheld programmer compatible
Two-way communications
Surge suppression: Internal (ground wire included)
Dual pump/master valve outputs may be assigned to decoders
Wire path connectors included with each decoder
Number of wire paths: 6
Automatic daily weather-based scheduling with optional Hunter Solar Sync sensor

Includes all features of the ACC controller, plus decoder operations. [1]

The ACC-99D starts with the ACC controller and adds all of its advanced features plus the benefits of a two-wire decoder system.

Solar Sync Delay [2]

Solar Sync Delay allows the installer to specify a number of days before automatic weather adjustment from the Solar Sync sensor begins, as well as a global percentage to use during the delay period. This allows a period of non-adjusted irrigation for grow-in or plant establishment purposes, without requiring a return visit to the site to enable the Solar Sync water saving feature.

Models

ACC-99D Model Chart

CONTROLLER MODELS	DESCRIPTION
ACC-99D	2-Wire decoder controller with 99 station capacity, metal cabinet
ACC-99D-SS	2-Wire decoder controller with 99 station capacity, stainless wall mount
ACC-99D-PP	2-Wire decoder controller with 99 station capacity, plastic pedestal
ACC-PED	Metal pedestal, gray powder-coated, for use with I-Core and ACC metal controllers
PED-SS	Stainless steel pedestal for use with I-Core and ACC stainless controllers

Decoder Modules

ICD-100	ICD-200	ICD-400	ICD-600	ICD-SEN
DECODER MODELS (SPECIFY SEPARATELY)	DESCRIPTION
ICD-100	Single-station decoder with surge suppression and ground wire
ICD-200	2-station decoder with surge suppression and ground wire
ICD-400	4-station decoder with surge suppression and ground wire
ICD-600	6-station decoder with surge suppression and ground wire
ICD-SEN	2-input sensor decoder with surge suppression and ground wire
Note: Each decoder includes 2 waterproof connectors for red and blue wires

ID WIRE MODEL GUIDE
14 AWG standard decoder cable		12 AWG long range, heavy-duty decoder cable
ID1GRY	Gray jacket	ID2GRY	Gray jacket
ID1PUR	Purple jacket	ID2PUR	Purple jacket
ID1YLW	Yellow jacket	ID2YLW	Yellow jacket
ID1ORG	Orange jacket	ID2ORG	Orange jacket
ID1BLU	Blue jacket	ID2BLU	Blue jacket
ID1TAN	Tan jacket	ID2TAN	Tan jacket

ID WIRE Maximum Wire Runs

ID 1 Wire	ID 2 Wire
5,000 ft. / 1.5 km with DUAL systems	7,500 ft. / 2.3 km with DUAL systems
10,000 ft. / 3 km ft with ICD systems	15,000 ft. / 4.5 km with ICD systems

Advanced AC Powered Controller Comparison Chart

<< View Residential AC Powered Controllers [3]

View Battery Powered Controllers >> [4]

“Smart” Control in Every Way For large-scale commercial landscapes, Hunter provides a variety of traditional and two-wire control options with cutting edge advanced features that can keep any landscape green regardless of size	[5]	[6]	[7]	[8]
	I-Core [5]	Dual [6]	ACC [7]	ACC Decoder [8]
QUICK SPECS
Number of Stations	6 to 42	1 to 48	12 to 42	1 to 99
Number of Programs	4	4	6	6
Valve Wire Options	Conventional	Two-wire	Conventional	Two-wire
Start Times Per Program	8	8	10	10
Max Number of Simultaneous Programs	2	2	6	6
Type*	Modular	Modular	Modular	Modular
FEATURES
Enclosure Type	Plastic Outdoor Metal Outdoor Stainless Outdoor Plastic Pedestal Stainless Pedestal	Plastic Outdoor Metal Outdoor Stainless Outdoor Plastic Pedestal Stainless Pedestal	Metal Outdoor Stainless Outdoor Plastic Pedestal Stainless Pedestal	Metal Outdoor Stainless Outdoor Plastic Pedestal Stainless Pedestal
Transformer Type	Outdoor	Outdoor	Outdoor	Outdoor
Central Control Compatible	Yes (Fall '13)	Yes (Fall '13)	Yes	Yes
Remote Control Compatible	Yes	Yes	Yes	Yes
Flow Monitoring	Yes	Yes	Yes	Yes
Solar Sync ET Sensor Compatible	Yes	Yes	Yes	Yes
Number of Sensor Inputs	2 (Plastic Models) 3 (Metal & Ped models)	2 (Plastic Models) 3 (Metal & Ped models)	4 + dedicated Flow input	4 + dedicated Flow input
Max Station Run Time (Hrs)	12 hr	12 hr	6 hr	6 hr
Pump/Master Valve output	1	1	2	2
Warranty	5 Years	5 Years	5 Years	5 Years
APPLICATION
Residential
Light Commercial
Commercial
* Fixed or modular indicates the controllers ability to expand the number of stations from a base count.

Specifications

SPECIFICATIONS & FEATURES

Transformer Input: 120/230 VAC, 50/60 Hz, 2A max at 120V, 1A max at 230V
Max AC Current Draw: 120 VAC, 2 Amps; 230 VAC, 1 Amp (max computed with all programs running and optional accessories installed)
Transformer output: 24 VAC, 4A, @ 120 VAC
- Decoder Line (path) output: 34 V peak-to-peak
- Decoder Power draw: 40 mA per active output
- Solenoid capacity: 2 standard 24 VAC Hunter solenoids per output within 150 ft. runs, up to 14 solenoids max simultaneous (includes dual P/MV outputs)
Max. distance to decoder
- (14 AWG) wire path: 10,000 ft
- (12 AWG) wire path: 15,000 ft
Wiring, Decoder to solenoid: 150 ft. max (twisted improves surge resistance)
6 two-wire output paths to field decoders
Two-way confirmation of decoder activation
Two-way monitoring of sensor connections (ICD-SEN)
Diagnostic LEDs with line status, signal activity, decoder and status
Programmable decoder station IDs (from controller panel)

ACC-99D Decoder Systems include all standard features of the ACC controller, including:

6 automatic programs, with 4 custom manual (auxiliary) programs
Two pump/master valve outputs programmable by station
1 flow meter (diagnostics to station level) and up to 4 sensor inputs (programmable to program level)
Programmable overlap or SmartStack by program with simultaneous station groups.
Seasonal adjust, 0 to 300% in 1% increments by program
Flow learning mode by station with programmable alarm thresholds
Station run times up to 6 hours with programmable delay between stations (up to 4 hours)
Self-diagnostic circuit breaker skips shorted stations and continues watering
SmartPort® equipped for wireless remote control
Test program feature allows for quick system checks
Central system compatible
Upgrade to "smart" weather based watering with Solar Sync Sensor
Real-time Flow Monitoring capability built in, with actual flow histories (in GPM or metric) available when connected to Hunter HFS or other compatible flow meters.
Flow-learning mode by station, with station-level diagnostics and alarm shutdowns.
Easy Retrieve™ backup feature can restore schedules, run times, names and other settings to a saved setup

ACC-99D Dimensions Chart

	Metal Enclosures (gray or stainless)	Metal Pedestals (gray or stainless)	Plastic Pedestal
Height	12 3/8"	37"	38 3/8"
Width	15 1/2"	15 1/2"	21 9/16"
Depth	6 1/4"	5"	15 7/8"

Metal Enclosures
(gray or stainless)

Metal Pedestals
(gray or stainless)

Plastic Pedestal

Height

12 3/8"

37"

38 3/8"

Width

15 1/2"

21 9/16"

Depth

6 1/4"

15 7/8"

	Decoders ICD-100, 200, ICD-SEN	Decoders ICD-400, 600
Height	3-5/8"	3-5/8"
Width	1-1/2"	1-3/4"
Depth	1/2"	1-1/2"
Note: Wire leads (all) - 18" L, 18 AWG dia. (46 cm L, 1 mm dia.)

Resources

Literature

[9]

[9]

[10]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[18]

[18]

[19]

[20]

[21]

[22]

[23]

[24]

[17]

Decoder Design Guide [18]

[25]

USA

[25]

[17]

ACC-99D Product Spec Cut Sheet [25]

Manuals

[26]

[26]

[27]

[28]

[29]

[30]

[31]

[32]

[33]

[17]

ACC Owner's Manual [26]

Software Updates

[34]

USA

[34]

[17]

ACC Update 5.10.006 for Windows XP [34]

[35]

USA

[35]

[17]

ACC Update 5.10.006 for Windows 8, 7 and Vista [35]

[36]

USA

[36]

[17]

ACC Flash Update Instructions [36]

[37]

USA

[37]

[17]

Acc Release Notes [37]

Specifications

[38]

USA

[38]

Metric

[39]

[17]

ICD Installation Details - DWG [38]

[40]

USA

[40]

Metric

[41]

[17]

ICD Installation Details - DXF [40]

[42]

USA

[42]

Metric

[43]

[17]

ICD Installation Details - PDF [42]

[44]

USA

[44]

[17]

ACC / ACC Decoder Written Specification [44]

[45]

USA

[45]

[17]

Automatic Controllers - Written Specifications - MasterSpec® [45]

Support

Topic	Title [46]	Rating [47]
FAQs, Video	How do I reset my Hunter controller? >> Read More [48]	4.15
FAQs	ACC Facepack Update Instructions >> Read More [49]	3.85
FAQs, Installation Procedures	What are the grounding specifications on a Hunter DUAL system? >> Read More [50]	5
FAQs, Troubleshooting	Can the ICD-HP program DUAL decoders? >> Read More [51]	5