AC3385 Series Digital Room Thermostat

Name: AC3385 Series Digital Room Thermostat
Brand: tempcontrolsupply
Availability: OutOfStock

Vendor: tempcontrolsupply

Overview
The AC3385 Series Digital Room Thermostats are advanced, user-friendly control units designed for precise temperature management in residential, commercial, and industrial environments. Ideal for integration with fan coil units (FCUs), motorized valves, dampers, and heating systems, the AC3385 ensures optimal indoor comfort while promoting energy efficiency.
Equipped with a high-contrast large-screen LCD display and a built-in NTC temperature sensor, the thermostat continuously monitors ambient conditions and automatically adjusts system output to maintain your desired setpoint—whether for cooling, heating, or ventilation.

Key Features
Smart Temperature Control: Maintains room temperature within ±0.5°C accuracy across a range of 10°C to 30°C.
Multi-System Compatibility: Supports two-pipe and four-pipe HVAC configurations.
Flexible Load Control: Manages fan speeds (Auto/High/Medium/Low), motorized valves, and dampers.
User-Friendly Interface: Intuitive button layout with clear on-screen icons for mode, fan speed, timer, and settings.
Optional Advanced Functions:
Weekly programmable scheduling (P)
Real-time clock with timekeeper chip (T)
RS485 communication for building automation (IN)
Backlit display (L) for low-light readability
System linkage capability (J)

View Full Details

Model Variants

Model Suffix	Function
A	Controls Fan Coil Unit + 2-wire Motorized Valve
B	Controls Motorized Damper Valve + Motorized Valve
C	Controls Fan Coil Unit + 3-wire Motorized Valve
D	Controls 3-Speed Motorized Damper Valve
E	4-pipe system: FCU + separate 2-wire valves for Cooling & Heating
F	Dedicated Heating Equipment Control
+T	Adds Clock Display
+J	Enables Main System Linkup
+L	Adds Backlight
+P	Adds Weekly Programmable Schedule
+IN	Adds RS485 Communication

User Controls & Functions
Mode Selection: Toggle between Cooling, Heating, and Ventilation (fan-only) via the M button.
Fan Speed: Choose Auto, High, Medium, or Low.
Temperature Adjustment: Use ▲ / ▼ keys to set desired temperature.
Key Lock: Prevent accidental changes by holding ▲ + ▼ for 5 seconds.
Advanced Settings: Access calibration, device ID, and MAC address by pressing M + S during power-off.
Temperature Calibration: Field-adjustable compensation (–9°C to +9°C) to account for installation-specific variances.

Installation & Wiring
Compatible with standard wall mounting (86-type box).
Wiring terminals support connections for:
Fan coil motors (H, M, L, N)
Heating/Cooling valves (Valve On/Off)
Optional NTC floor/room sensors
Important: Always refer to the wiring diagram on the back of the power unit.
Recommended valve pairings: V2016, V4016, V6016, V8016 Series
Safety Note: This thermostat provides intelligent temperature control only. External safety devices (e.g., overheat protectors) must be installed by heating equipment manufacturers.

Reliability & Support
Warranty: 12 months from date of purchase
Designed for long-term stability with robust PCB protection
Maintenance should be performed by qualified technicians

Why Choose AC3385?
✅ Energy-efficient climate control
✅ Modular design for diverse HVAC systems
✅ Clear display and simple operation
✅ Scalable for smart building integration (via RS485)
✅ Trusted performance in global installations

Technical Data

Specification Name	Specification Value
Power Supply	AC 100–240V, 50/60 Hz
Self-Power Consumption	<1.5W
Load Capacity
Resistive Load	2A
Inductive Load	1A
Temperature Accuracy	±0.5°C
Operating Range	10°C – 30°C
Time Accuracy	<1% error (with timekeeper chip)
Dimensions	87 mm × 87 mm × 15 mm (H × W × D)
Display	Large LCD with real-time room temp, setpoint, mode, fan speed, and status icons

FAQs

Find quick answers to common questions

Function & Compatibility

1. Are your thermostats compatible with my heating system?

Yes. Our thermostats support most common heating systems, including ON/OFF boilers, underfloor heating, and fan coil units.

2. Do your thermostats support smart home integration?

Yes. Selected models support Wi-Fi, Zigbee, or Bluetooth, and can integrate with platforms like Alexa, Google Home, and Tuya Smart.

3. Can your thermostats control multiple zones or devices?

Yes. We offer multi-zone wiring centers and thermostats suitable for controlling multiple heating zones or devices.

Installation & Usage

1. Is installation difficult for end users?

No. Most thermostats come with clear instructions and can be installed easily by professional HVAC technicians or experienced installers.

2. Can I adjust the temperature remotely?

Yes. Wi-Fi or Zigbee-enabled thermostats allow remote control through mobile apps or voice assistants.

3. Are your thermostats energy-efficient?

Yes. All models are designed to optimize energy usage while maintaining comfort, helping reduce energy costs.

After-Sales & Service

1. What warranty do you provide?

All thermostats come with a 12–24 month warranty, depending on the product type.

2. Can I get technical support if I encounter problems?

Yes. Our professional technical team provides online support for installation, configuration, and troubleshooting.

3.Do you provide replacement parts or repairs?

Yes. We offer replacement parts and repair support within the warranty period to ensure uninterrupted operation.

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