Hearth and Home Technologies HRV200PLUS manual Ventilation Operating Modes Connector P1

HRV200PLUS INSTALLATION INSTRUCTIONS

5.Ventilation Operating Modes – Connector “P1”

a.OFF Mode

The HRV is idle until an input is sensed. This is the normal standby state when the HRV Plus is powered but not receiving any command inputs.

b.Low Speed Ventilation Mode

Low Speed Ventilation Mode is activated when 12VDC is sensed at the “O” terminal. The HRV operates with blowers on low speed and defrost control is active. High Speed Mode inputs override Low Speed inputs and place the unit in High Speed Mode.

c.High Speed Ventilation Mode

The HRV is operating with blowers on high speed and defrost control is active. When 12VDC is sensed continuously at the “B” terminal for more than 4½ seconds, the HRV will enter High Speed Ventilation Mode for as long as the override signal is present, then return to its previous mode when the input is removed.

The dehumidistat on wall-mounted controls place the HRV into High Speed Ventilation Mode for moisture control. The dehumidistat senses the humidity in the living area and activates high speed blower operation when the humidity level exceeds the set point selected by the home owner. The HRV returns to its normal operating mode when the humidity level in the indoor air stream falls below the set point.

d.High Speed Ventilation Mode – 20 Minute Timer

The HRV is operating with blowers on high speed and defrost control is active. When the override signal is sensed at the “B” terminal for more than ½ second but less than 4 ½ seconds, the HRV will enter High Speed Mode for 20 minutes then return to its normal mode.

e.Intermittent Ventilation Mode

Intermittent Ventilation Mode is activated when 12VDC is sensed at both the “W” and the “O” terminals. The HRV operates on Low Speed Ventilation Mode for 20 minutes then is off for 40 minutes. High Speed Mode inputs override Intermittent Ventilation Mode inputs and place the unit in High Speed Mode.

Ventilation Jumper Table

To Achieve this Operating Mode:		Place Jumper Between:
1.	Continuous Low Speed Ventilation	"R"	"O"
2.	Continuous High Speed Ventilation	"R"	"B"
3.	Intermittent Ventilation	"R"	"W"
	20 min. on, 40 min. off
	Low Speed Ventilation only
4.	Continuous Low Speed Intermittent Ventilation	"R"	"O" & "W"

6. Ventilation Control Terminals - Connector P1

Input Function

High Speed Ventilation Mode input control - 12VDC input.

Dual Operating Modes:

B1. 20 minute override if 12VDC signal duration is sensed between ½ second 4½ seconds.

2.ON/OFF override if 12VDC signal duration is sensed more than 4½ seconds.

High Speed Input overrides Low Speed Input.

RPower supply out from control board - 12VDC output.

O Low Speed Mode input to control - 12VDC input

W Intermittent Ventilation Mode Input - 12VDC input

G LED Output. This output is on anytime the HRV is operating in high speed.

32 4034-102 Rev F 02/04