Braemar TH and TG Series Zoning Setup & Spectrolink Control Commissioning Guide


Braemar TH Gas Ducted Heating – Zoning and Control Commissioning Guide

Applicable Models: TH3, TH4, TH5

? System Overview

  • TH3: No zoning, single Spectrolink Comfort Control (SCC) only.
  • TH4/TH5: Zoning supported, up to 4 Spectrolink Comfort Controls (SCCs).
  • Evaporative Cooling: Zones inactive.
  • Refrigerated Cooling: Zones operate as per heating mode.

? Required Documentation

  • Installation & Service Manual
  • Home Owner’s Manual
  • Zoning Supplement Manual
  • Technical Bulletin A06/08 – SCC Product Compatibility & Setup
  • AS5601 compliance takes precedence over manual instructions.

? Spectrolink Comfort Control (SCC) Capabilities

  • Controls TH3, TH4, TH5 heaters.
  • Supports Breezair, Braemar, Coolair SI coolers with CPMD.
  • Sends 24Vac control signal to refrigerated cooler relay.
  • Adjustable heater fan speed (3–10).
  • Allows manual zone control via SCC interface.
  • Zones can be turned on/off individually using zone buttons.
  • Compatible with:
    • Braemar TH & TG series gas ducted heaters
    • Braemar heaters with SPI (TE & TA) or MPI (TM & TE) control systems
    • Breezair, Braemar & Coolair evaporative coolers with CPMD electronics
    • Refrigerated cooling systems (Dual Cycle or fan-only)

⚙️ SCC Mode Configuration (from Bulletin A06/08)

To configure SCC for heater and cooler type:
  1. Ensure SCC is in HEAT mode and turned OFF.
  2. Within 15 minutes of power-up:
    • Press SET + AC MODE simultaneously.
    • Display shows HEAT 3 (default for TH/TG series).
    • Use arrows to select:
      • HEAT 1 – SPI (TE & TA)
      • HEAT 2 – MPI (TM & TE)
      • HEAT 3 – BSC (TH/TG series)
    • Press SET.
    • Display shows COOL 1:
      • Leave as COOL 1 for evaporative cooling.
      • Change to COOL 2 for refrigerated cooling.
    • Press SET to confirm.
⚠️ If powered longer than 15 minutes, disconnect SCC communication cable and discharge the black square capacitor until screen is blank before setup.

? Zoning Configurations

TH3:

  • No zoning available.

TH4/TH5:

  • Single SCC:
    • Requires common zone.
    • Supports up to 4 additional zones.
    • Common zone operates whenever system is active.
  • Multi-SCC:
    • Each zone has its own SCC.
    • Zones operate independently.
    • Each SCC must be installed in the zone it controls.

? Outlet Register Guidelines

In-Ceiling:
  • 150mm: 55–70 L/s
  • 200mm: 85–100 L/s
Underfloor:
  • 150mm: 40–50 L/s
  • 200mm: 60–70 L/s
⚠️ Avoid exceeding airflow rates to reduce noise and complaints.
⚠️ 200mm outlets not recommended for heating-only systems.

? Thermostat Placement

  • Single SCC: Centrally in common zone.
  • Multi-SCC: Each SCC in its respective zone.
  • Height: ~1.5m from floor.
  • Avoid: Direct sunlight, external walls, heat sources, draughts.

? Heating & Cooling Integration

  • SCC must be Braemar (not 2-wire thermostat).
  • Zones inactive in evaporative mode.
  • Zones active in refrigerated mode.
  • Refrigerated cooling zones operate same as heating zones.

? System Setup Procedures

Single SCC:

  1. Max Fan Speed:
    • HEAT mode → OFF → SET + FAN → Adjust speed (7–10).
  2. Enable Zones:
    • HEAT mode → OFF → SET + ZONE 1 → Select zones.
  3. Set Zone Fan Speeds:
    • HEAT mode → OFF → FAN + ZONE 1 → Step through zones.
  4. Manual Zone Control:
    • Open SCC door → Press zone button → Zone number disappears (off).
    • Press again to turn zone back on.

Multi-SCC:

  1. Max Fan Speed:
    • Set via Master SCC (Zone 1).
  2. Confirm Zones:
    • HEAT mode → OFF → SET + ZONE 1 → Verify SCC communication.
  3. Set Zone Fan Speeds:
    • Same as single SCC, repeated per zone.
  4. Independent Operation:
    • Each SCC can operate independently with its own temperature settings.

Refrigerated Cooling:

  • Max fan speed fixed at 10.
  • Zone selection and fan speeds follow heating setup.



To view the YouTube video on setting up the Spectrolink SCC system, please follow this link.