Procom QL300RYLA-W ユーザーズマニュアル

       

   Never   connect

heater   to   private  (non-utility)  gas
wells. This  gas  is commonly  known
as  wellhead  gas.

       

   Use  only  new, black

iron  or  steel  pipe. Internally-tinned
copper  tubing  may  be  used  in
certain  areas.  Check  your  local
codes.  Use  pipe  of 1/2

"

  diameter  or

greater  to  allow  proper   volume gas
to  heater. If  pipe  is  too  small, undue
loss  of  pressure  will  occur.

Installation  must   include  an  equip-
ment  shutoff  valve, union, and
plugged 1/8

"

 NPT  tap.  Locate  NPT

tap  within  reach  for  test  gauge  hook
up.  NPT  tap  must  be  upstream
from heater (see  Figure 7).

:  Install  equipment

shutoff  valve  in  an  accessible
location.  The  equipment  shutoff
valve  is  for  turning  on  or  shutting
off  the  gas  to  the  appliance. Apply
pipe  joint  sealant  lightly  to  male
threads.This  will  prevent  excess
sealant  from going into pipe. Excess
sealant  in  pipe  could  result   in
clogged  heater  valves.

             

   Use pipe joint

sealant  that  is  resistant  to  gas
(PROPANE or  NG).

We  recommend  that  you  install  a
sediment  trap  in  supply  line  as  shown
in  Figure 7. Locate  sediment  trap
where  it  is  within  reach  for  cleaning.
Install  in  piping  system  between  fuel
supply  and  heater.  Locate  sediment
trap  where  trapped  matter is not  likely
to  freeze.  A  sediment  trap  traps
moisture  and  contaminants. This
keeps  them  from  going  into  heater
controls. If  sediment  trap  is  not
installed  or  is  installed  incorrectly,
heater may  not  run  properly.

       

   Avoid  damage to

regulator. Hold  gas  regulator  with
wrench  when  connecting  into  gas
piping  and/or  fittings.

       

   Never  use  an

open  flame  to  check  for  a  leak.
Apply  a  mixture  of  liquid  soap  and
water to all joints. Bubbles forming
show  a  leak. Correct  all  leaks  at
once.

       

  Make  sure  external

regulator  has  been  installed  be-
tween gas  supply  and  heater. See
guidelines  under  Connecting  to  Gas
Supply.

1. Disconnect   heater   with  its

appliance  main gas valve (control
valve) and equipment  shutoff  valve
from  gas  supply  piping  system.
Pressures  in  excess of  1/2  PSIG
will  damage  heater  regulator.

2.   Cap   off   open   end   of   gas  pipe

 where  equipment  shutoff  valve
 was connected.

3.   Pressurize  supply  piping  system

by either using compressed air or
opening  gas  supply  tank valve.

4.   Check   all   joints   of   gas   supply

piping system. Apply mixture of
liquid  soap  and  water  to  gas
joints. Bubbles  forming  show  a
leak.

5.   Correct all leaks at once.
6.  Reconnect heater and equipment

shutoff valve to gas supply. Check
reconnected  fittings for leaks.

1.   Open  equipment  shutoff   valve

 (see  Figure  8).

       

   Test  all  gas  piping

and  connections  for  leaks  after
installing  or  servicing. Correct  all
leaks  at  once.

E quipm ent S hut

P ropane/LP
S upply Tank

E xtem al R egulotor