Description
24 VAC Microprocessor Based HSI Control with 120/240 Field Selectable Line Voltage Capability
FEATURES
- Safe start and full-time flame sensing
- 120/240 field selectable line voltage for use with 120 VAC ignitor option
- 24/120/240 VAC hot surface ignitor models available
- Blower control and airflow switch monitoring option
- Diagnostic LED
- Multiple trials for ignition
- Automatic reset option
- Local or remote flame sensing
- Flame current test pins
- Dual speed blower option for LoNox applications
- Fail-safe gas valve control (35-66 only)
- CE models available
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APPLICATIONS
- Pool and spa heaters
- Gas furnaces
- Water heaters
- Any 24 VAC gas burner application under 400K BTU
The Series 35-65 and 35-66 controls are designed to perform many gas-fired 24 VAC appliance functions in a single control, resulting in lower system cost.This series monitors the demand for heat, controls the combustion blower, monitors proper airflow, ignites and maintains the flame during heating, and provides diagnostic support. The on-board diagnostics with LED output provide assistance with troubleshooting and ensures safe and efficient burner operation.
The microprocessor circuit design provides precise, repeatable timing sequences for ignition and purge times (pre-, inter-, and post-) as well as multiple tries for ignition.The optional 120/240 VAC field selectable line voltage capability provides additional field service efficiency and lower inventory costs.
Technical Specification
SPECIFICATIONS
| INPUT POWER Voltage Current | Control: 18 to 30 VAC 50/60 Hz (Class 2 Transformer) Line: 24, 120 or 240 VAC (L1 & L2 only) 300 mAmax @ 24 VAC with blower and gas valve relay energized (Control only) |
| OUTPUT (CONTACT RATINGS) Gas ValveCombustion Blower (Model 35-66 only)Hot Surface Element | 2.0Amax @ 24 VAC3.0 FLAmax @ 120 VAC (1/4 hp) 1.5 FLAmax @ 240 VAC (1/4 hp)5.0Amax @ 120/240 VAC |
| OPERATING TEMPERATURE | -40F to ힾ (-40C to ) |
| FLAME SENSITIVITY | 0.7 microamps minimum |
| TYPES OF GAS | Natural, LP, or manufactured |
| IGNITOR | 24 VAC, 120 VAC, or 240 VAC mini-ignitors and silicon carbide ignitors depending on model |
| ENCLOSURE | Gray (Noryl N-190) |
| MOISTURE RESISTANCE | Conformal coated to operate non-condensing to 95% R.H. Care must be taken to protect module from direct exposure to water |
| SIZE WITH ENCLOSURE | See Figures on Page 7 |
| WEIGHT | 8 oz including cover |
|
CONTROL CONFIGURATION |
|
|
Model |
Without Combustion Blower Relay (Model 35-65) |
|
Optional Features |
None |
|
Ignitor Options |
120/240 VAC Ignitor (20 Second Heat-Up) |
|
Blower Relay |
No Post-Purge All Q.C. Terminals without Full Time POWER (W Only) |
|
Tries For Igntion |
Three Tries without Automatic Reset |
|
Pre-Purge |
None |
|
Inter-Purge |
15 Seconds |
|
Trail For Ignition |
4 Seconds |
