moistureMASTER HX User manual

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moistureMASTER HX HEAT RECOVERY
HOME VENTILATION SYSTEM
USER GUIDELINES MK6 Version (Sept 2017)

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moistureMASTER HEAT RECOVERY VENTILATION
QUICK REFERENCE GUIDE TO RUNNING THE SYSTEM
A heat recovery ventilation system is not in itself a heating system. It helps to preserve the heat
within your home at the same time as it replaces the indoor stale air with fresh air from outside.
Fresh air from outside is unheated of course but the system is designed uses the existing heat that
are already generating within your home to warm and temper the incoming fresh air. In many new
homes where heat preservation is highly achievable you should not need extra heating to compen-
sate for the little heat that you lose through ventilation. The system is simple to operate and in
most cases you never have to interface with the controls once you have selected the ventilation
rates that work best for you.
ABOUT HEATING
The overall performance of the heat recovery mechanism and its ability to help prevent indoor tem-
peratures from cooling is very much dependent on the temperature of the indoor air. The warmer
it is inside the home the more effective the system will be in maintaining indoor warmth and pre-
venting fresh air from cooling the house down. We are using the indoor warmth to heat the incom-
ing fresh air.
Particular attention needs to be paid to homes with radiant underfloor heating. Because of the
characteristics of this form of heating the occupants of a home may feel warmer with the air at a
lower temperature. For the best performance and comfort when you are operating a heat recovery
ventilation system and radiant underfloor heating during the coldest winter months here in New
Zealand you may need to operate the underfloor at a slightly higher temperature.
ABOUT VENTILATION
The amount of ventilation required to keep your home healthy and dry is very little, usually only
about .35 air changes per hour. We suggest that you run the system on the lowest setting. A simple
way of gauging whether or not you have enough input air can easily be determined by putting your
hand to diffuser outlet. If you are able to feel a gentle wisp of air exiting the diffuser outlets then
that should be enough. Too much ventilation without sufficient heat could have a slightly negative
affect to your indoor temperature.
If condensation is a problem, keep increasing the airflow until morning condensation does not
occur.
BALANCE
It is important to ensure that the correct balance between heat and ventilation be maintained. It
may be necessary to experiment a little to achieve the optimum balance for your home. Balance is
achieved when you feel that there is sufficient fresh air and warmth within the home.
The system should also be operated in a balanced way with a similar amount of air being pushed
through the heat exchanger from both the Fresh air and Exhaust air fans in the winter time. The
fans are able to be run at different flow rates so it is possible to over-pressurise or under-pressurise
the home but generally it is better to have a balanced flow in and out of the home.
CONDENSATION CONTROL
Condensation control is easily achieved when there is sufficient drier air being introduced into the
home. The airflow must be continuous and enough heat must be maintained within the home.
Once you achieve the correct airflow and it is balanced with the heating, the control, prevention
and elimination of condensation is easy to achieve and more importantly it is achieved in a com-
pletely unobtrusive way.
Eliminating condensation and problems associated with dampness is delivered through a process of
dilution and the displacement. There indoor air is made drier by introducing drier air and the damp
air is continuously removed by the ventilation system. The moment ventilation stops moisture lev-
els quickly start to build up again. So ensure your system is always switched on during the winter
months.

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OPERATING THE SYSTEM
Please become familiar with the touchpad interface and you will soon nd it easy and convenient to select the vari-
ous opons that you have included in your system. The menu contains all of the current opons that are available
with moistureMASTERtm and may include some which you have not included in your purchase. For further infor-
maon on the opons which are available please enquire from one of our trained consultants or call our customer
services and support team.
The graphic that you will see most of the me is the “main screen”. It includes all the basic operaonal informaon
that you will want to know. The main screen is only funconal when the backlight is illuminated. The rst press of
any buon illuminates the backlight and acvates the buons. Once the back light is illuminated the touch pad is
operaonal and will accept seng changes. The LCD control has been designed to default back to the main screen 10
seconds aer the last buon press. 4 seconds aer returning to the main screen the back light will exnguish and
the touch pad enters the “standby” mode. It will remain in the standby mode unl any buon is pressed again and
the back light is illuminated once more.
MAIN SCREEN - (Default)
Exhaust air temperature. (Inside Air
going out, air from inside home)
Supply air temperature (From HX to
the house, fresh warmed air to house)
Selects EXHAUST FAN and
HEAT levels (If heater is
included)
Supply Fan Indicator
Exhaust Fan Indicator Fresh air supply temperature
(Outside air coming in)
Set House Temperature. Air delivery temperature for
system with the heat boost funcon
Roof Temperature Indicator
Roof Cavity Exhaust Status Indicator
Heater status indicator. (Only shows
if heater is included)
Cost Control CCP (Running costs of
Booster Heater if included)
CODE NUMBER: MK6HXLCD
Selects (SUPPLY) or FRESH
AIR FAN and HEAT levels
(If heater is included)
N.B. The temperatures displayed have an accuracy of at least + or – 1 degrees so cauon needs to be applied if you are relying
on them to ascertain eciency levels of the overall system.
Exhaust air all coming from the house “OFF”
Exhaust air all coming from the roof cavity “ON”
50% exhaust from the roof cavity and 50% exhaust from the house
ROOF CAVITY EXHAUST STATUS INDICATOR
N.B. Please see page 9 for details on seng the roof cavity exhaust. When AUTO is selected ALL
exhaust air comes from the house when the temperature is under the level selected and 50% from
the house and 50% from the roof cavity when the temperature is above the selected level.

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MENU SELECTIONS - How to make selecons
and set up opons.
Press the MENU buon from the MAIN SCREEN
and the following screen appears. The selecon
cursor is next to the Set House item. To scroll
through this screen press the + or - sign to
move cursor up or down. When the cursor is next
to the item you want to select press the SELECT
buon and that item is highlighted. You can now
make your selecons using the + or - buons.
Follow this proceed through all of the menu selec-
ons.
Heater (Enable or Disable)
The HX unit can be operated with or without the in-built supplementary heater enabled or disabled; if disabled
the heater will not funcon. If enabled the temperature of the supply air may be regulated. Somemes there
may not be enough exisng heat within the home to deliver the supply air at a temperature that you desire. In
the (default) screen the temperature at the boom le of the screen is able to be adjusted up or down by
pressing the + or - buons. If enabled the in-built heater will cycle on and o and maintain the temperature
that you have selected. The supplementary heater should not be regarded as a heang system but merely to
ensure that cool air may be avoided regardless of the prevailing climac or weather condions. The ulmate
performance of the heater is dependent on the area of the home, how well the home is insulated and also the
amount of background heat that is present.
Heater Status On Heater Status O
Set House
This is the minimum air temperature that you want the HX system to deliver air on the supply side of the sys-
tem and is delivered to the room supply diusers. This seng is used in conjuncon with the booster heater
and is designed to always deliver the temperature selected. When there is not enough heat within the home to
deliver the Set House Temperature from the HX unit the booster heater can be “enabled” to come on and do
that job. See the next secon HEATER (Enable or Disable)
Fan Operaon
Both fans are able to be controlled independently. The + and - buons on the le of the control pad con-
trol the fan operaon.
The TOP fan on the LCD screen is the EXHAUST air fan which moves the stale, warmer air out of the home.
The BOTTOM fan is the FRESH air supply fan which moves the fresh air into the home.
In the SUMMER the FRESH air fan is able to be switched o manually or programmed to turn o automacally
at a user selected temperature to prevent the home from becoming hoer. The EXHAUST air fan cannot be
programmed to turn o automacally because it could be connected to the bathroom, ensuite or toilet extrac-
on system which may be required to run connuously even in the summer. However the EXHAUST air fan is
able to be turned o manually.

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Sengs Menu
The sengs menu lists most of the useable features of the moistureMASTER HX system. Press the MENU
buon and use the + and - buon to scroll the cursor to “Sengs”.
Press the SELECT buon. A new menu will appear. Again use he + and - buon to choose the
item that you would like to set. Press the SELECT buon to highlight the item and then you are able
to make your selecon. When you have made the selecon press the SEKLECT buon again to dese-
lect the item and then you can move the cursor up or down to another item. Follow this procedure
for all of the items that you want to select and set.
N.B. The Sengs menu will only display the opons that are included in the system.
Summer Maximum (Maximum)
With the cursor next to the Summer Maximum press the SELECT buon and the selecon is highlighted. Us-
ing the + and - buon choose the summer maximum temperature. If you have an oponal summer by-pass
ed this will be the temperature at which the by-pass is acvated in the AUTO mode. If you do not have
this ed the Fresh Air Supply fan will stop working at this temperature. This will prevent the system from
heang your home up on a hot summers day. The HX unit can only be used for cooling in conjuncon with an
air condioning unit. However the summer By-pass will help to prevent dayme cooling and will provide a
lile cooling of the home at aer dark when the night air is cooler. See page 10 for summer by-pass.

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Cost Control
When the Cost Control Programme is selected to “on” CCP Sengs will appear immediately under Cost
Control. You will be able to enter a specic daily budget for the heater operaon by seng your house-
hold power costs and making a selecon on how much money you want to limit the heater operaon to in
your moistureMASTER system. Move the cursor to CCP sengs then press SELECT and a series of screens
will appear.
Funcon: Set the Daily Budget - (Daily maximum cost for heater operaon)
This is the second screen:
Press the + or - buon to select your desired budget. The budget is set in
50 cent increments. The daily cycle commences at 12 midnight. Once the daily
budget is expended the heater operaon will cease. If addional daily budget is
added the heater operaon will recommence.
Funcon: Set the Power rate - (Cents per kw hour from your monthly power
account)
This is the rst screen:
Press the + or - buon to select correct kw power charge. This can be reset
and any me and all calculaons will be re-done to reect the changed power
rate. To move to the next screen press the MENU buon.
Funcon: Monthly Roll Over - (Unspent balances will accumulated and can be
allocated to the next months budget)
This is the third screen:
Press the + or - buon to make your selecon
No Roll - Any accumulated unspent balance will not roll into the next month
Roll - Accumulated balances are carried over to the next month, apporoned
and added to each daily budget.
Funcon: View Monthly Costs - (History of heater costs)
This is the fourth screen:
This screen merely displays the last months costs for running the booster heater
and the month before that. The amount spent cannot total more that the daily
accumulave totals for the month except any unspent previous months alloca-
on which has been rolled into the new month will be included if it has been
used.
The screens provide you with the ability to enter
data that is necessary to calculate the heater run-
ning costs, Manage the budget that you sent and
provide you with historical feedback on the run-
ning costs of the Booster heater in the moisture-
MASTER HX system. Press menu to scroll through
each screen.
To Exit the CCP Sengs menu press SELECT. This will take you back to the Sengs Menu.

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Roof Cavity Exhausng (oponal)
The Roof Cavity Exhausng includes a switching assembly and allows the system to exhaust the warm air
through the heat exchange unit and recover the heat within the roof cavity when its available. This heat is
only available during the dayme when the sun is shining when heat within the home is minimal. This op-
on is worthwhile parcularly in homes that have a dark coloured steel roof where the heat gain can be
signicant even in winter. Obviously the benets will be greater in some parts of New Zealand than others.
At night this heat source is not available and the exhaust air can be switched back to be sourced only from
within the warmer parts of the home.
For the Roof Cavity Exhausng there are four selecons of operaon.
All air from the roof cavity All from the house or roof cavity
All from the house 50% from house and 50% from roof cavity
If AUTO is chosen an addional screen appears with a temperature selecon. This is the temperature in
which the exhaust damper will change its seng to draw exhaust air from the house or roof cavity. This can
be adjusted by placing the cursor next to Exhaust Set and highlighng it by pressing the SELECT buon. Se-
lect the temperature by pressing the + or - buon. When AUTO is not selected the Exhaust Set selecon
and temperature will disappear from the screen.
Summer By-pass (oponal)
The Summer Bypass includes a damper assembly which allows the supply fresh outside air directly into the
home without going through the heat exchange system. Heat will not be recovered from the warmer inside
air of the home so no further heat will be picked up through the heat exchange process. When the Summer
Bypass is “o” the air is switched back to run through the heat exchanger again.
N.B. The summer bypass is not recommended if your home is “air condioned” and it is being used to cool
the inside air. In this case the heat exchanger will act in reverse by cooling the warmer fresh incoming air
before it is introduced.
In the Summer Bypass mode there are three selecons of operaon.
All Fresh air passes through the HX Unit All Fresh air by-passes through the HX Unit

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Summer By-pass (connued)
In the Auto mode the summer bypass is only acvated when the fresh air supply temperature
reaches the Summer Maximum which is the rst selecon of the Sengs Menu. When the tem-
perature falls below that level the by-pass is turned o and the air resumes passing through the
HX unit.
Air is being supplied or exhausted
All from Zone 1
ZONE CONTROL (Oponal)
Zone control is a motorised damper mechanism that is able to switch the supply air to two
dierent parts of the home. It can also be used to vary the amount of air being delivered to
both zones.
It can be used to switch or vary the amounts of air being exhausted through the heat exchange
unit from dierent parts of the home as well. Only 1 zone damper can be ed.
Air is being supplied or exhausted
70% Zone 1
30% Zone 2
Air is being supplied or exhausted
50% Zone 1
50% Zone 2
Air is being supplied or exhausted
30% Zone 1
70% Zone 2
Air is being supplied or exhausted
All Air from Zone 2

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Timer Funcon
The mer is used solely to control the booster heater operaon of the HX Unit. It is the last selecon in the
Sengs Menu. Place the cursor next to the Heater Timer label and press SELECT. The mer screen will automacal-
ly appear. Select the mer operaon by pressing the + and - buons.
Select On with the + buon
Select O with the - buon
Ulies Menu
There are two items that are sourced via the Ulies Menu. Seng the me and date and viewing the lter change
date.
Select Ulies by placing the cursor nest to the label in the main menu screen. Highlight it by pressing the SELECT
buon. The rst item to appear is the me and date. Pressing the menu buon moves through the various compo-
nents that will need to be set. These are set by pressing the + or - buons. When you have nished seng the
me and date press the SELECT buon which advances the screen to view the lter change date. Exit the Ulies
mode by pressing the SELECT buon one more me.
Filter Change
Filter changing with approved moistureMASTER lters is also necessary to maintain the warranty that the manufac-
turers of moistureMASTER have provided. Failure to replace the lter at the required intervals with the prescribed
moistureMASTER lters will void the warranty. Although reminder leers are rounely sent by Condensaon Con-
trol Ltd it is the owner’s responsibility to ensure this is carried out at least annually and in some cases it is probably
a good idea to replace lters more regularly than this. In order to remind you we have built into the electronics a
calendar which displays the date around which the lter should be changed. When the moistureMASTER HX was
installed the Technician would have set the me and date and acvated the lter calendar. This date will be set into
the lter change display which is selected in the AM or Advanced Menu.
It is important that the lters in the system be changed at least once a year to maintain the unit’s integrity and
ecient operaon. Where a summer venlaon By-pass is ed it may be necessary to replace the lter twice a
year. Bulk packs are available for purchase from the manufacturer at reduced rates.
When the lter date is reached the date will ash connuously across the temperature display on the main screen.
It is me to call for a lter service.
You may purchase the lters directly from Condensaon Control Ltd and change the lter yourself. Instrucons to do this are
included with each lter. Our customer services centre will also provide you with instrucons to clear the lter indicator. Clear-
ing the lter indicator advances the change date to the current date plus 1 year when it will ash across the LCD screen again.
You may also call us and arrange for one of our service technicians to do this for you. This will give us an opportunity to check
the system over to make sure that everything is working as it should.

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