Bard FH110D48B User manual

MICROPROCESSOR RECYCU PRIMARY
CONTROL MODEL TFA 850.2
The TFA 850.2 Control Rovides Automatic, Recycling Control
of an Intempted Ignition Oil Burner.
Sencheck circuftry Worn m up
Integral transformer pmdm Ipv
m fw Drrd circuit
Used wilh CDB Cadmium Sdf~de Ceg.
M-rocesr~or timer arts df iwlition aftw trial fm innitbn.
-
w & nomid we timi~.
Amilable wim 15 or 45 second sddy timing.
Ercioaedsdetysmtchis~manudybythe~burt0n.
Mounk on mard 4 X 4 irreh junction box1
Ex& ternrind stri~ with actlehhr tminels lor Iw vldtacreconnection.
TFA 850.2 TECHNICAL SPEC1 FlCATlONS
ww
I CAUTION 1
A# wifing must can& with applicaWe codes and OI~V~BRCBS. Refer to
inhxmamn tlmshed by Ihe sysmm equqment manu&ctumf when wmng
SYSTEM - Connect Ihe TFA850.2 to the system wring at the tarmlms ond
ba.
WERWTAT- Run wires fran the lOlv Mnage thetrnatal directly lo thr
Iwr- terminal mp and mnnecl to T-T termmls.
CADMIUM SUYlflE CELL - Run the No, 10 leaas from the cad CB~I
(usuadly iWbd by the burnw manutaclumr) to the low voltage term~nd str~p.
wnw w me F-F termMs.
OPERATJON
Summary
On 24 volt VtemmM dl lor heat. the TFA859 2 rnlcmDmceosor noes thmuah
asen-check (Bppmx. 14 m); he burner maw oil vslm, anzlgnltlon -
v-wrner am man wpued. On line dags d for heat, the T FABSO 2
mcmv
through a milcheck (akro~. 7D.15 mds): ihe burner
mdm, d dm, and ignition tranalormw am thn -pized. The TFABSO 2
wintempted Gni~on by umtq a mew- 10 pmide lgnrtron
during &y rockaul timrm priod. If the
cbll Iris to detect aflame mth~n
tb mid period d lime (75 or 15 seconds), me microprocessor \mks out
and must be feW Iw bur^ mation.
H th flame shwld Id during norrnaloperat~on, the hrner immedratdy
shuts m. Atter the mntt'd umu cecyclw lapproxlmaWy 60 saconas), the
hrner mll sn~ptto mtan Ii t&cadmll thendw Mt detect a flame withln
me wied m, the ay smleh locks wf and must b manualy r-1
The hmm sharld rr9( wset Ihe control mare lhan three (3) times
Sequenc80fOpemtEon
NORMAL OPERATION
- - - - -
w:
-50.. .. +1W FAHENMIT
-20°... +BOD CELSIUS
m.24vPltx
0.2 unp
6-: SAFW OPERATION
-nd:ulaykclraR
-rsdnrshlng: ddWm
-qm:~on,nomH1~
-~~:~supplyvoltPOl
-whcmynpMwMFldcJ
-urrkrmM!&neydlmh
-Surt-up:rppmx.2at~
-wm:appK.4k~
INSTALLATION
TheTFABS0.2moumonastandard4X4inehjunetionbox. Locate
thsjumlimbinany~&on!ha burner, lurneee.or
neatby dl. Seled e rbcabwl *&i the ambient tmper&m win nd
exceed 125OF. Wm wiriw is corn@&, wre WTFA850.2 to the
jundiwlboxmth2moumq~

SERVICE AND CHECKOUT
sewice
The TFA850.2 rnleropmr controls am set at the factory and
quim no adjustment or penodlc maintenance.
Checkout
Uw the Wowing prozedurn to check out the TFA850.2 contrd after
tstallabon.
1. flame lalure - shut d oil supw hand valw while burner is on.
The burner should imrnedlately shut dwn. After the ign~tron timer
wles (appmx~mately 60 =OMS), the burm unll attempt to restat
~ner 15 or 45 seeonds depending on model, mlcroproceasor lock out,
1QnlhOn stops, mctor stops, and oil dve clam. Sale wtch must be
reset.
2. lgn~tion andlor M falum - shut df oil supply while burner rS Otl
Run thmunh starting procedure, do not turn al valw on. Sdety swtch
locks wt & in flame fslure.
3 W farlure - turn dl
supply while burner is on. When
hrner goes wt, wore
and burner wll restart after 15 md
SeHchec k May.
4. If operation IS nd as -bed, check wiring and installation first
If trwMs pma. fdlw the mplete procedune for checking wt the
TFA850.2 and cad cell printed on the cocler I-.
CAUTION:
ONLY A f WNEO, MPERlENCED SEWICE TECHNICIAN SmWLO ATTEAOPT THE
CHECW PROCEDURE GlVEN ON THE INSERT.
NOTE: ifpw Wm fo W llw Mty switch, rwr thmugh the stmg
pmdm belauv, m'tthg step 2. Thr switch will
out w sabfy h
15 or 45 seconds, -0 on W.
STARTING PROCEDURE
I CAUTION: I
Lsun~Fhvmbrrb~ofdlw~por.
1.Pushhw~rsdmatbum.
2. Opw hand vrlvs In aU supply IIM.
3. Sat tkrlmtat ur call for M.
4.Closammlteh.
5. Undr ~mral wndlbbns. bum omtm uotll marmastat b sathifltd.
*f&-.m
~rr#au1.*.
TFA 850.2 SEQUENCE 0-ET
Reset Bumn:
- mng W I~WI bunon during 'MBFEB (1-1 salely time) causes a
wth apprO~mtely 1-4 sec~h dellcheck d&y
- hng the rewt button durrng the run rnd calrses a Marl w~th
appmxmately1-4 seconds df+chm delay
-Rang the reset bunon durlng the recyde Me mses a restart w~th a full
wyua aday.
- Pmw tna rescH button shortlyafter esalaly Iwkou! occurred causes a 1-4
seconaswCcheck delay, and then starts a Wsecona scavenging delay
PowerC#r
- Power dl and on durlng the 'MBFEP (lockout =fay bme) cause4 a restan
with approximately 10-75 mnds self-check May,
- PovHW
and on during -We mm causes a rw stan ol the tecy~le
perid.
- Pow? off and on dunw th fun mode causes a restart w~th approxkmately
10.15 seconds dfcheck de+ey.
- Lm voltage thermostat off and on aurlng 'MBFEP (lockout safety tlme),
causes themtrd to go thrwgh the60 wand recycle mode delay Th~s
p~nts shon cyding d the burner.
- Low wllagethermostat off and on dunng run mode cases a restart with
approx~mately 1.4 mnds Mf-check delay.
'M: "MBFEP" Main Burner Flame Enteblishmen f Period.
SEQUENCE FOR BLEEDING PUMP
- Wng the met button dur~ng the *MBFEP (lockout safety t~me)
causes a restart with approwunatdy 1-4 seconds self-ch~k de!ay.
SEQUENCE OF SAFEW TFA 850.2
m YNs 2~~\~~~~~R~ I
1-7 ltld~atm 11gM F~s~I~Q Red
i
FUME WT€CTK)N BY CAO CELL DURING FLAME ESTABLISHMENTPERIOD
1 lOeK OUT T lMEl
FLAME MTECTED FLAME DETECTED
I+L$lT*ENUDST 1
HEAT
B 4
BY RESET SWITCH
ICONTRX.EYT I
P 0 Box 1289 + E lyr~a. Ohlo 44036
A.W. 8- -*~n