| THE combined exhaust and air intake cowl on
the outside of the caravan must not be obstructed in any way.
During winter use ensure the cowl is not blocked by driven
AFTER switching off or the heater going to safety shut
down, wait 3 minutes before relighting.
WATER heaters (as with all other gas appliances) should
be switched off and the gas cylinders turned off when the
caravan is in motion.
FROST and sterilising see separate note.
ANNUAL SERVICE - In common with all gas appliances an
annual service by a Carver Main Dealer is recommended.
IF YOU have any problems with this water heater seek the
advice of your nearest carver main dealer.
THIS water heater does not contain asbestos related products.
The Cascade 2 arid Cascade 2 GE
are storage water heaters with a 9 litre (2 gallon) or 6
litre (1-1/3 gallon) capacity.
The heater is installed through the wall of the caravan
with only the flue cowl visible on the outside.
All the working parts of the gas system are in a single
module which can be easily removed by a competent gas fitter
from outside the caravan.
The gas heating is operated by a wall mounted controller
inside the caravan. This controller contains the positive
and negative 12v line fuses, indicator lights and the ON/OFF
switch. It is independent from the mains electrical heating
on the Cascade 2 GE.
In addition the Cascade 2 GE contains an independent immersion
heater which is controlled by a separate double pole switched
mains outlet. The immersion heater can be used on a240
or2POv 50Hz supply and is rated at 605 and 660 Watts respectively.
For a faster warm up both systems may be used simultaneously
but it is recommended that only one be used for the maintenance
of hot water supply.
The thermostats for both modes of operation are independent,
non adjustable and set to approx. 70 0 C.
The Cascade 2 includes the following safety features:
- A pressure relief valve which opens if the internal
pressure exceeds 3 bar (44 psi) arid vents water into
- A fusible plug located behind the cowl above the burner.
If, due to a fault, the internal temperature exceeds
96 0 C this plug melts and sprays water onto the burner
causing the heater to go to safety shut down.
- On the Cascade 2 GE only there is also an over-temperature
cut out which is manually resettable.
GAS OPERATING INSTRUCTIONS
CASCADE 2 & CASCADE 2 GE
|1. BEFORE SWITCHING ON
- Ensure that the gas is turned on and that
the system is full of water i.e. air free water flows from
the hot taps.
- Check that the 12 volt supply is connected and switched
on. DO NOT use a battery charger as the only source of
|2. TO LIGHT THE HEATER
- Move the slide switch on the controller downwards.
- A continuous green light indicates that the heater is
|3. TO SWITCH THE HEATER OFF
- Move the slide switch upwards.
|4. THE LIGHTS INDICATE
Switch the heater off and WAIT 3 MINUTES before attempting
to relight the heater. If air in the gas system is the problem
several attempts may be necessary before the heater ignites.
- GREEN. The heater is working satisfactorily.
- GREEN AND YELLOW. The DC voltage is below the 10.5 volts
that are required to operate the heater. Recharge the battery.
- GREEN and RED. The heater has failed to ignite or has
gone to safety shut down. This is usually due to failure
of the gas supply or air in the gas system after fitting
a new cylinder.
MAINS ELECTRICITY OPERATING
CASCADE 2 GE
|1. BEFORE SWITCHING ON
- Ensure that the system is full of water, i.e. air free
water flows from the hot taps.
- Ensure that the caravan is connected to the site mains
and the supply is adequate. (The immersion heater uses
approx. 2.75 amps.)
|2. TO SWITCH ON
|Operate the isolation switch. If it is of the
illuminated type the light will show that the heater is working.
The thermostat cannot be adjusted and is pre-set
to approx. 70° C.
|4. OVER TEMPERATURE CUT-OUT
|If the mains electrical supply to the heater
is switched on but the heater is not working the over temperature
cut out may have operated.
This can be due to:
- Switching the heater on without water in the tank. See
- Failure of the normal operating thermostat.
- Manually reset the over temperature cut-out by pressing
in the button in the centre of the electrical connection
box. If the operating thermostat has failed the over temperature
thermostat will trip out again. If this occurs DO NOT
USE THE IMMERSION HEATER AND CONSULT YOUR CARVER DEALER.
- During periods when the heater is likely to freeze it
MUST be drained down to prevent damage.
- It is also recommended that the water system is drained
during winter storage.
TO DRAIN THE SYSTEM PROCEED
Park the caravan on level ground.
Ensure that the gas and electricity are turned off.
Unscrew the drain plug which is located at the bottom left of the flue
cowl on the outside of the caravan. When the end of the thread is reached
pull the plug out slightly. The plug will still be retained but will
allow the heater to drain. Open both the hot and cold taps. To completely
drain the water heater can take a considerable time. At least 9 litres
(2 gallons) of water should drain from the heater. Use a bucket to collect
the water to ensure the heater has drained completely.
Close the taps when the heater has stopped flowing. It is recommended
to leave drain plug out while the system is empty and replace before
When cleaning the water system at the start
and end of the season it is advisable to use a sterilizing
fluid, e.g. Milton 2, Chempro SDP or similar. DO NOT USE
DOMESTIC BLEACH, CAMDEN TABLETS OR SODIUM METABISULPHIDE.
If a Crystal Water System is fitted, remove the filter
and refit only the end cap of the filter as the carbon
filter reduces the effectiveness of the sterilising agent.
Always fit a new water filter at the start of the season.
CUSTOMER SERVICE DEPARTMENT
CARVER & CO. (ENGINEERS) LTD.
COPPICE SIDE INDUSTRIAL ESTATE
BROWNHILLS, WALSALL, WEST MIDLANDS, WS8 7ES
TEL: 0543 452127 FAX: 0543 452950
Ref. W95211 Issue 8 Printed
by LITHOPRINT (Coleshill) Ltd. Tel: 0675 462591
|Cascade 2 & Cascade
2 GE Instalation Instructions
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