Greenwood Air Management GRF1 User manual

GRF1
Radio Frequency Device for HRV2HT
Controller Mounting (GRF1)
The GRF1 controller can be mounted to the wall
or the HRV2HT unit. (See Installation instructions).
The controller is supplied with one back box, one
fixing plate and a screw and raw plug set.
Wall Mounting (See Figure 1)
• Using the four countersunk screws and four raw
plugs supplied, mount the back box (A) to a
flush surface.
• Using the remaining two panhead screws,
mount the fixing plate (B) to the back box.
• Place the control panel (C) onto the fixing plate
until the top and bottom clips are fully engaged.
• The controller must not be mounted in a
bathroom or above / closer than 1mtr to a
cooker where the screen could be affected by
excessive heat or moisture.
Removal of the Front Cover
(for batteryinsertion / replacement)
The fixing clips (located at the top and bottom), hold the controller
securely in place. Never attempt to pull the controller away from the
fixing plate without releasing the clips first, otherwise you could cause
damage to the fixing plate or controller.
Using the tip of a flat blade screwdriver, gently push in to free clips
before easing off the controller to remove (See Figure 2). Insert 2 x AA
(non rechargeable) batteries (See Figure 3). To replace the controller
ensure the correct orientation, before clicking the controller back onto the
fixing plate, please ensure both clips (top and bottom) are fully engaged.
Figure 1
Figure 3Figure 2
Page 1

On Site Commissioning (using the GRF1)
This section covers set up, configuration of the unit for installation and altering pre-set factory settings. For
instructions on how to operate the GRF1 LCD display user menu, maintenance options and indicator warning
information, please refer to the User / Homeowner Guide.
Once the wiring connections have been checked, switch the mains supply on and check that the system is
operating correctly.
WARNING – Failure to pair the GRF1 with the HRV2HT will result in loss of controller functionality.
Pairing for GRF1 and HRV2HT
Commissioning the HRV2HT is done through the GRF1 controller. Upon completing the commissioning
stage, the GRF1 controller can be installed for User / Homeowner to give advanced controllability of the
HRV2HT system.
Note: Before the HRV2HT can be operated remotely, the GRF1 controller and HRV2HT must be paired to
each other. Please complete the following steps.
• At the start of pairing please ensure the GRF1 controller does not have batteries inserted.
• Remove the ‘access for controls pairing’ panel (See Figure 4) located on the flying lead side to reveal
the registration button and LED. (See Figure 5).
• Press the red registration button (located in the centre), once pressed the registration LED next to it
should illuminate.
• The registration LED indicates that the HRV2HT unit is now ready to be paired. With the LED
illuminated simply insertthe 2 x AA batteries (supplied) into the GRF1 controller. You will have
approximately 1 minute to insert the batteries to complete the pairing process (please ensure that you
remain close to the HRV2HT unit during this 1 minute period).
• Upon successful registration and pairing, the GRF1 will display a confirmation message. This should
be shown for approximately 1 minute (See Figure 6). The GRF1 will begin communication with the
HRV2HT after the registration period of 1 minute has timed out or until the red registration button is
re-pressed and the LED is turned off.
• Reattach the ‘access for controls pairing’ panel. (See Figure 4).
In the event of the GRF1 not successfully pairing with the unit an error message should be displayed on the
screen (See Figure 7). If this should occur please ensure the registration LED is not illuminated, remove the
batteries and repeat above steps.
Figure 5. Behind ‘Access for Controls Pairing’ Panel
Page 2
Figure 4. Removal of Control Panel
Access for Controls
Pairing Panel
Registration
Button
Registration
LED

Figure 6. GRF1 Successful Registration Figure 7. GRF1 Unsuccessful Registration
Page 3
De-registering the controller
In the event that the GRF1 controller needs to be de-registered from the HRV2HT, the following steps need
to be performed:
• Whilst the HRV2HT unit is still running remove one of the batteries from the GRF1.
• Press and hold [ ] on the GRF1 controller whilst reinserting the removed battery.
• Upon successful de-registration of the GRF1, a confirmation display should be shown for approximately
1minute (See Figure 8).
Figure 8. GRF1 Successful De-Registration

LCD Display
General Controls
The four buttons on the controller have different
functions dependent on which screen or menu
you are in.
Details of the respective functions of these are shown within-
1) Normal Operation Display (See User / Homeowner Guide Section 3.1.3)
2) User Menu (See User / Homeowner Guide Section 3.1.7)
3) Maintenance Menu (See User / Homeowner Guide Section 4.1.3)
4) Commissioning Menu (See following pages 4-7)
If required, a copy of the HRV2HT User / Homeowner Guide can be downloaded from www.greenwood.co.uk
Commissioning Menu
To enter the commissioning menu;
i. Press and hold the [ ] button for 2 seconds.
ii. Toenter the three button code, press the following buttons in this sequence [ ], [ ] and [ ].
iii. Press [ ] to confirm
The first symbol shown upon entering the commissioning menu is the Clock setting (See page 7). When in
the commissioning menu screen a spanner will be shown in the top right hand corner to indicate you are in
commissioning mode. When in the commissioning menu press [ or ] to navigate between menu
options, please refer to Altering Factory Settings (See page 7). Navigate to the required symbol and use [ ]
to enable alteration then use [ or ] to modifysetting followed by [ ] to confirm alterations. To exit
commissioning mode at any time press and hold [ ] until normal running screen appears.
See page 6 for an example of how to navigate through the commissioning menu for trickle speed adjustment.
Note: (While in Commissioning)
If no buttons are pressed for 5 minutes, the unit will enter idle mode to conserve battery power. During
idle mode the LCD will turn off,upon reactivation the screen will show the user menu.
Page 4

Below is the schematic of how to navigate around the Commissioning Menu.
Note:
For specific adjustment details, please refer to respective function shown on Page 7.
Page 5

Example:
Setting Intake / Supply Trickle Speed to 40%
Note:
All settings are stored within the HRV2HT’s memory and should NOT be lost in the event of a power
failure. When power is restored, the HRV2HT unit should revert to normal running with all settings
unchanged. Likewise, reminder indicators are NOT reset.
Page 6

Altering Factory Settings
Note:
For details on adjusting the factory settings, please refer to the worked example on page 6.
Page 7

Greenwood Air Management Ltd
Greenwood House, Brookside Avenue, Rustington, West Sussex, BN16 3LF
Main Line Tel: [phone]
Technical Services: [phone]
Main Line Fax: [phone]
Web: www.greenwood.co.uk
Email: [email protected].uk
05-10-911 Issue 1 January2011

GRF2
Radio Frequency Boost Switch for HRV2HT
Wall Mounting (See Figure 1)
• Using the four countersunk screws and four
raw plugs supplied, mount the back box (A)
to a flush surface.
•Using the remaining two pan head screws,
mount the fixing plate (B) to the back box.
• Place the control panel (C) onto the fixing
plate until the top and bottom clips are fully
engaged.
• The controller must not be mounted in a
bathroom or above / closer than 1mtr to a
cooker. Figure 1
Figure 3Figure 2
Removal of the Front Cover
(for batteryinsertion / replacement)
The fixing clips (located at the top and bottom) hold the
controller securely in place. Never attempt to pull the
controller away from the fixing plate without releasing the
clips first, otherwise you could cause damage to the fixing
plate or controller.
Using the tip of a flat blade screwdriver, gently push in to free
clips before easing off the controller to remove (See Figure 2).
Insert 2 x AA (non-rechargeable) batteries (See Figure 3).
Torefit the controller ensure the correct orientation, before
clicking the controller back onto the fixing plate, please ensure
both clips (top and bottom) are fully engaged.

Pairing for GRF2 and HRV2HT
• The GRF2 controller must be paired with the
HRV2HT unit in order to communicate remotely.
•At the start of pairing please ensure the GRF2 controller
does not have batteries inserted.
• Remove the ‘access for controls pairing’ panel (See
Figure 4), located on the flying lead side, to reveal the
registration button and LED. (See Figure 5).
• Press the red registration button, once pressed the
registration LED next to it should illuminate.
• The registration LED indicates that the HRV2HT unit is
now ready to be paired. With the LED illuminated
simply insert 2 x AA batteries into the GRF2 controller.
You will have approximately 1 minute to insert the
batteries to complete the pairing process (please ensure
that you remain close to the HRV2HT unit during this
1minute period).
• Upon successful registration and pairing, the GRF2
controller will flash 3 times (See Figure 6) before
remaining unresponsive for approximately 1 minute until
the registration LED on the HRV2HT unit goes off.
• Reattach the ‘access for controls pairing’ panel onto the
HRV2HT
.(See Figure 4).
To validate that the GRF2 controller has been successfully
paired with the HRV2HT unit, please press the boost button,
which should show the HRV2HT unit's current speed setting.
If all 3 LED lights flash rapidly for 3 seconds the pairing has
been unsuccessful, to resolve, please repeat above steps.
De-registering the controller
In the event that the GRF2 controller needs to be de-registered
from the HRV2HT
,the following steps need to be completed:
• Whilst the unit is still running remove one of
the batteries from the GRF2.
• Press and hold the [Boost] button whilst
re-inserting the removed battery.
• Upon successful de-registration of the GRF2, the
controller will rapid flash for approximately 3 seconds
(See Figure 7).
Note: De-registering will not affect the settings on the HRV2HT.
Behind ‘Access for Controls Pairing’ Panel
Figure 4
Figure 5
Figure 6
Figure 7
GRF2 Successful Registration
GRF2 Successful De-Registration
Registration
Button
Access for Controls Pairing Panel
All 3 LED’s will
flash rapidy for
3seconds
Greenwood Air Management Ltd
Greenwood House, Brookside Avenue, Rustington,West Sussex, BN16 3LF
Main Line Tel: [phone]
Technical Services: [phone]
Main Line Fax: [phone]
Web: www.greenwood.co.uk
Email: [email protected] 05-10-912 Issue 1 January2011
HRV2HT UNIT
Registration
LED
All 3 LED’s will
flash 3 times in
1second
Boost Button
Boost Button